Lucas distributor advance springs


  • The cam opens and closes the points… and is increasingly becoming obsolete with the introduction of after-market electronic Addition of a new fuse block, mechanical brake light switch, third brake light, illuminated reflectors, fuel pump inertia switch, fusing the fuel pump, installation of Tow Eyes and Tie Down Hooks. Each engine application is different based on engine, gear ratio, horse power type of transmission etc. CA Fitted with automatic advance and retard KY Die-cast body with pressed steel AA Springs Distributor suppressor for centre of vertical outlet distributor caps. 415729 : Lucas Spares for DKX1A Distributor Genuine Lucas NOS Distributor Cap Side Clips fits 250cc C10-C10L-C11 Plunger ( Spring ) Frame Models Part No. I wanted to use it to develop a curve for the Unilite in the engine and just install the springs and be done. These engines require more degrees advance. The distributor is one of the most essential parts on the car but often overlooked. In Photo 3, the peach colored arrow highlights the curved ramp that the weights follow as centrifugal force stretches the springs and allows advance. Custom Distributor Curving. Shop distributor advance springs on sale right now online! Car Ignition Parts For Sale Distributor built for customer with historic Formula 2 car Points cam stop TIG welded then precision machined to provide 9 distributor degrees of centrifugal advance (18 crank degrees) Custom designed and manufactured advance springs fitted End-float corrected and no advance below 450 rpm Set the total advance first and check for pinking, if it pinks at low revs the springs may be weak,some of these distributors are over 40 years old. Advanced Distributors offers a comprehensive distributor rebuilding service for ALL Lucas distributors, as well as most collectors and antique vehicles! Our rebuilding service is the most comprehensive available, despite our bargain pricing. 17 Jun 2015 Distributor advance spring information Loop frames Moto Guzzi Topics I ran across this article about Lucas automotive distributors and there  New K2F Lucas Replacement Auto Advance Springs. If the engine fails to start, rotate the distributor in small increments clockwise or counterclockwise until the engine starts. I don't think that is realistic. The spark wire from the coil is connected through the distributor cap to the rotor, sitting on top of the distributor shaft. If you have any questions, please call 1-877-ADVANCE (238-2623) or visit any Advance Auto Parts store. If your Classic Motorcycle Magneto has an Automatic Timing Device (ATD), we offer a limited Repair Service. One is stretching the centrifugal advance springs, only too easy to do. The first improvement of electronic ignition was to replace the mechanical points with a "solid state" semiconductor switch called a transistor (pictured above) This is called a "fast switching transistor" to be exact. Manual advance The manual Lucas distributor, the DJ4, fitted to Box Saloons and other cars with an IGN lever, has a maximum mechanical swing of about 18 degrees. Uprated Lucas Distributors & Advance Spring Set Specially modified distributor unit with an improved advance curve to suit the modified engine, especially if a performance camshaft is fitted. Use 40162 and fit 407248/ S auto advance springs. Choose from high performance ignition products Like: distributors, spark plugs, spark plug wires, and ignition kits. BSA Magneto Pinion Retaining Nut - Short Type for A, B and M Group Models Shouldered nut to retain the mag/dyno driving pinion on A7, Apr 02, 2012 · If you own a classic British twin — or triple — and ride it with any regularity, you really owe it to yourself to consider an ignition upgrade. Servicing the Contact Breaker Assembly The contact breaker assembly is the part of the distributor that requires the most frequent attention. An often neglected but important area when tuning an engine is the ignition system. Comes complete with detailed instructions and advance curve diagrams. 4, 3. Modern Electronic Ignition for Classic Cars Supplying Classic Car Parts Fuel Ignition Coils Wheel Spacers Dash Cams Spark Plugs Points and Condenser HT   4 Jan 2020 The springs give a varying amount of advance through the rpm range it isn't clear) probably is an original Lucas 45D4 distributor, I'd like to  The Advance curve that the original distributor was designed to produce is This combination of data will produce a spring rating that a spring supplier can the non-Lucas consumable parts sold to fit our distributors can be of inferior quality. Lucas OPUS. When inspecting the distributor, look for build up or Bosch distributors are found on many different cars and are generally very reliable. 41270. We ordered a Lucas distributor that had been rebuilt, recurved and fitted with just a mechanical advance. There will be some confusion when refering to the direction of rotation of the distributor. This is the original distributor using 60+ year old springs but with new bearings and play removed from the advance mechanism itself. If the rest of the fuel and ignition system is well tuned but the car doesn't accelerate cleanly, the problem may lie in the distributor advance mechanism. People forget to occasionally put a few drops of oil under the rotor button to keep the cam lubricated. A typical advance curve and distributor data can be found here. Talking distributor degrees. a maximum advance of 6° engine ignition timing. Vacuum advance applications: Disconnect the vacuum hose to UNILITE® Distributor vacuum chamber at the carburetor and temporarily plug this carburetor fitting. While the stock Lucas ignition system used on just about every non-magneto fired Brit twin from the early 1960s to the mid-1970s can work just fine, it Wilbur Shaw finished second, driving No. coil. Thus, the 25D was fitted to several hundred thousands of MGs over a 13 year period. www. 020" and a condenser on it. 2. It may be necessary to change your spark plugs for ones with a different heat range. Lucas type auto advance unit spring pair to replace original Lucas part number 54415642. 99 NOS TRIUMPH LUCAS AUTO ADVANCE SPRINGS (2) FOR POINTS IGNITION NORTON 54415642 NOS TRIUMPH LUCAS The advance function of this distributor is all electronic and as such contains no mechanical parts, ie springs and weights - which over time can wear and or get stuck. A complete rebuild takes between one and three months, so please send your distributor as soon as possible during your restoration project. It is a pretty ordinary distributor, but has a built-in mechanical tachometer drive takeoff. Lucas Distributor Advance curves and other stats and now Delco Remy Distributors as well : This list is the result of many hours of searching for proper settings during some of my past experimentation and troubleshooting efforts. Sometimes beyond salvage, but always useful for providing otherwise unobtainable advance spring reference information and definitive numbering and application data. 00 Vacuum Advance Unit 60 55-59 90+105 1956 on (exchange) Basic Electronic Ignition Transistors and Pickups Sensors. We do not sell any rebuild parts such as springs, weights and bushes. 8 and 4. 143-195 Replacement Condenser for Mallory Dual-Point Distributor|Mallory's classic dual point distributor can be tailored to suit any engine tune. Where the distributor is bolted down determines the initial advance, the amount of travel in the mechanical advance determines the total advance, and the springs determine what RPM total advanced is reached. The internal electronics provide the right advance and the optimum dwell-angle Ignition Timing for Modified Engines . M. 65 If it has the ignition amp. While the stock Lucas ignition system used on just about every non-magneto fired Brit twin from the early 1960s to the mid-1970s can work just fine, it Place the 21A rotor on the distributor shaft, then place the 21A crab cap on the distributor body. lucas_distributor_specs. Many distributor over advance at low RPMs because of weak springs and over advance at high RPMs because of high mechanical advance limits. All numbers are distributor not engine RPM Advance May 27, 2008 · Ok, I’ll admit now that I have an early 90 fitted with a 2. 12cc/da/h1163 on. Also the amount of advance supplied by the mechanical advance was set up for the specific application it was used on, and this is seldom what's needed for a Check positive vacuum will pull distributor advance whilst also checking vacuum module is not holed (when sucking the pipe, the base plate of the distributor should rotate anti-clockwise about 15 deg. 2 litre, 6 cylinder XK-engines. If you're doing a mechanical distributor, you then develop a curve from this map and alter the springs and/or weights to match your experimental curve. 391 Series - 391-4: Part Number Description. Les Bengtson. Weight weight (hehe) in combination with spring preload determines the onset of advance while the spring rate vs weight weight determines the slope of the advance curve. 12ce, 12v This is the original distributor using 60+ year old springs but with new bearings and play removed from the advance mechanism itself. lucas 25d4 no. This distributor requires a vacuum source from the carburetor or throttle body (when used with fuel injection). 12 Months Warranty on Parts. Western Wyoming Beverages has been proudly owned and operated in Wyoming for over 40 years. . Re-Curving Rover Distributors as published in British V8 Newsletter, Volume XIV Issue 3, December 2006 by: Jean Monfort All engines must be equipped with the right distributor, giving the right advance curve. (advance springs and bushings supplied) As originaly used on the SD1 Distributors such as Lucas DE8,DLM8 Electronic as well as for conversion of Single Point or Right, moving onto standard Austin seven engines, throughout production only one automatic advance distributor was used and this was the Lucas DK4A. [email protected] Tel. 1. 42156: Lucas/BSA Head Lamp Shell Genuine Lucas ( used Mar 21, 2010 · Note the number " 738 " on the left and the other one is a "524" to see advance spec divide the last two numbers by 2. These are available readily from around £30, and can be fitted to a number of other distributor makes. In 1975, it was replaced by the newer Lucas 45D4 distributor, another points type distributor. , that only affect the efficiency of the spark, but the actual ignition advance supplied by the distributor. The contact breaker points should normally be serviced every 10,000 km (6,000 miles). magneto-ignition. About Us. 123 ignitions do distributors that have adjustable advance curves that are great if the engines modified. The Advanced Curve Spring Kit - A selection of advance springs of various weights that allow you to finally tune the mallory distributor. Based on information posted by other users on the Jag-lovers forum, the closest spring set for the YL advance that best match the Lucas 40617A non-emissions mechanical advance curve are the green and white. 7L). MK14 Components Ltd reserves the right to change prices without prior notice. As one can see most of the advance is taken up just coming off idle rpm's. With the engine off, remove the distributor cap and use a vacuum hand pump to operate the advance mechanism. TS Imported Automotive Parts Catalog Replacement Parts for the Triumph TR250 and TR6 Prices subject to change without notice, please call and experience our personal service! Magneto Ignition Supplies Price List January 2018: email. Having an incorrect advance curve can cause great damage to your engine. For example, if you have got a 3. * Vacuum advance activated in 4th gear only. The number 41558 reflects the advance curve that was built into the distributor when new at Lucas. Find Distributor Advance Springs and get Free Shipping on Orders Over $99 at Summit Racing! This document will look at tuning the advance curve of Lucas distributors, 23D/25D and 43D/45D types in particular, but the principles and approaches used apply to any distributor with mechanical advance. Ex+ the 524 is a 12 degree advance and the 738 is a 19 degree unit. Bosch distributors for Porsche 356, 912 (1. Spark plugs, points, condensor, rotor and gauge. Different cams can be used to adjust the maximum advance figure. The following Tutorial shows how to convert a Lucas distributor to electronic ignition using one of the smaller system which fit inside the distributor cap. uk : Email or call for P&P charges If you go down that route you might want to check what's in there - springs and bobweights. Hi, I am wondering about the advance springs too hence my recent dismantling of the 35DE8 distributor (was planning to swap the springs but wanted to compare advance curves first). The mechanical advance is made up of a set of weights and springs. ). Distributors are rebuilt to factory performance or timing advance can be modified for better engine matching and/or performance. Distributor with Electronic Pointless Ignition P4 80. com Since people unfamiliar with the Lucas CEI distributor will need to be taking it apart, this page provides some pictures of the parts involved to help make the job clearer. Step 2 Connect a timing light and start the engine. The first is the centrifugal advance. I used several in 2x2 set ups with no problems. 50 in batches of 500. triumph auto lucas nos norton 54415642 advance ignition for (2) springs points points springs (2) triumph advance ignition 54415642 auto for nos lucas norton: $14. has established itself as one of the fastest-growing lubrication product lines in the consumer automotive aftermarket, featuring a line of engine oils, greases, gear lubes, problem-solving additives, and car-care products. Replaces Lucas part 498157   Roadster Factory Tour · Spring 2007 Vacuum advance was missing as well. All 16 available advance curve settings are selected electronically via a hidden switch. If in doubt, consult your car's service manual. Lucas distributor automatic advance springs, Reconditioned Lucas distributors, rebuilt Lucas distributors, recurved Lucas distributors, Distributor Doctor. V12 IGNITION SYSTEMS. JEGS specializes in high performance ignition products for street and racing applications. ** Please note this picture is for illustration purposes and may not be of the actual part supplied as there was more than one in stock at the time of photographing **. 99 NOS TRIUMPH LUCAS AUTO ADVANCE SPRINGS (2) FOR POINTS IGNITION NORTON 54415642 NOS TRIUMPH LUCAS Example: say initial timing is 8 degree advance, and mechanical timing is 24 degree advance, the combined combination adds up to 32 so the Total Timing is 32 degree advance. Negative earth only. This is a Model 22D. The contact points should be correctly gapped (Lucas 0. Used Lucas distributor stock These pictures show some of our huge stocks of old distributors, the majority here are from the 1930's and 1940's. TRW SV500 EA 391-400052 rotor, distributor, early EA 391-400135 distributor cap, Ariel Sq4 EA 391-400136 distributor cap, earlyTwin, DKX2A EA 391-400415 points, distr, early, UK repl. If it is too badly worn to repair, we have new ATDs available for some makes of motorcycle. Since people unfamiliar with the Lucas CEI distributor will need to be taking it apart, this page provides some pictures of the parts involved to help make the job clearer. Lucas Magneto K2F Auto Advance Springs (2) 498157 Right, moving onto standard Austin seven engines, throughout production only one automatic advance distributor was used and this was the Lucas DK4A. What is not covered Lucas type auto advance unit spring pair to replace original Lucas part number 54415642. This is a very high quality replacement spring set that is ready to be installed. LUCAS GENERATOR PART NUMBER LIST The table below is intended to assist you in identifying which vehicles use which generator (dynamo) The table below has been put together using old Lucas parts catalogues an a source of information, it is aimed at the car The mechanical advance is made up of a set of weights and springs. N. The spring rate and preload of the springs in a magneto ATD are important, but perhaps not as important as you might initially think. Apr 02, 2012 · If you own a classic British twin — or triple — and ride it with any regularity, you really owe it to yourself to consider an ignition upgrade. F-Distributor spring. Holley carburetors powered every Monster Energy NASCAR® Cup team and nearly every NHRA® Pro–Stock champion for four decades. With a magneto ATD, the speed dependent advance that the bob-weights are trying to cause is being opposed not only by the ATD springs, but also by the load placed on the ATD by the magneto. The red curve shows the improvement gained by using new springs (I was lucky to find some "new old stock" springs for this test). We specialize in pre-electronic ignition components from the 1920’s to early 1970’s 40048 distributor is no longer supplied (NLS), use 40162. They also have the original vacuum advance unit with the offtake midway down the slope which is exactly correct for the MGBGTV8 model. Using the information provided on the distributor curve worksheet, I'll work with you to determine the correct distributor timing characteristics for your application. When this happens depends upon the springs. From the introduction of the revised A+ series engine in 1980, the Lucas 45D and Units with vacuum advance, known as 25D, were used on most models, but the You can purchase one of the two units below and use the spring set listed  CONTACT BREAKER UNITS AND DISTRIBUTORS. I think if you want to go high rev, you need to play a little with the weights and springs. what I am interested in is if people have other values than those stated because scanning the Net I have found several others, and a recent article in the journal mentioned data from museum archives that is different again. Focusing on a bunch of distributor advance springs and much more available for sale today. Then BSA used the 18D1 on the later B31 and B33. We totally rebuild, re-curve and recondition the DVX, DK, D2A, DM6, DMBZ6, DM2P4, 22D and 25D Lucas 45D distributor with one-piece contact breaker and non-adjustable vacuum advance unit. ‘LUCAS’ distributor rebuilding service The distributor is one of the most essential parts on the car but often overlooked. However, this doesn’t really equate to an advance of 18 degrees in practice. Kit #29014 is used with the YH advance, and uses a purple spring plus four other colors. S. The diaphragm moves a rod that turns a sliding plate at the base of the distributor, which can be seen with the naked eye. The effect of changing spring rates and free lengths will be analyzed, design charts and examples will be presented. We inspect each distributor thoroughly; everything is checked, adjusted, lubricated, etc. classicvehicledata. pdf . Shop distributor advance springs on sale right now online! Car Ignition Parts For Sale Distributor is a quality reproduction of the original vacuum-advance Lucas 45D4 vacuum-advance 41427 distributor. Repairing your pump yourself is a great way to save money; however, extra care must be used as serious pump and/or engine damage can occur. Please Note: Your fuel injection pump is a very technical device. Main things that usually go wrong are: 1. UT2316 Ignition Kit with Spark Plugs--- Models using IH* distributors. Result is a sticky cam and an inconsistent advance curve. early engine designers used a small vacuum canister attached to the distributor to advance the timing under high manifold vacuum to we supply lucas electrical spare parts and accessories for your classic and modern vehicles Bulbs Switchgear Wiper Blades Wiring Products and Consumables Starter Motors Solenoids and Alternators Auto Electrical Spares | Suppliers of Lucas Spare Parts & Accessories All our Mallory distributors are only suitable replacements for vehicles specified with Lucas distributors. Note: This replacement distributor is based on model 45D4. 07810090337 : Web. When the load on the engine is light Magneto Advance / Retard Options . The solution is a new distributor or replacement bushings. Jeff adds a machined ring that will take the torque necessary to hold it properly without turning. The shaft can sometimes be slightly bent due to carelessness. 9 degree mechanical advance gives just the right advance under load and our original 54415894 7 14 8 vacuum advance gives just the right advance when not under Lucas 25D Distributor Shaft Bushing Replacement. then that is fine. Note; Many other years, Jag had as much as 18 to 24 degrees distributor mechanical advance alone. Lighter springs allow the mechanical advance to move more easily so you will reach total advance at a The rate of mechanical ignition advance is determined by two important factors in these distributors. If present, the timing will not be consistent. Same as UT2315 with hotter plugs to avoid fouling. A. Holley® has been the undisputed leader in fuel systems for over 100 years. 7. For example, if a car begins to sputter, the engine is not receiving enough power. Thumbnail: 391-400001 base, distributor, DK EA 391-400051 rotor, distr, Tri. A vacuum unit must not be used when an engine is fitted with side draught carburettors. Under the cam are a pair of counterweights that fly out as speed increase and cause the cam to advance. CONDITION 6/10 **USED** AUTO ADVANCE ASSY, (SR2 MAGNETO) 12g2055 - new - distributor - with vacuum advance unit. I ran it again today with both sets of points set at . The Distributor Doctor has fortunately acquired a few brand new, UK made Lucas 35D8 distributors in the earlier style complete with points and external dwell adjustment with the hexagonal bar. The springs are the most obvious, but the advance cam is equally important. ** USED ** LUCAS SR2 AUTO ADVANCE. A curve kit with a selection of advance springs no advance below 450 rpm Set the total advance first and check for pinking, if it pinks at low revs the springs may be weak,some of these distributors are over 40 years old. Original Lucas (Exchange Only) Price: £150. HOME. The 25D6 on the other hand, has the maximum advance controlled directly by a heal on the cam (which has the advance figure stamped on it) coming into contact with a peg on the action plate. Later TDs with high compression should use TF dist. Although it is not required, we recommend replacing the spark plug wire set with the 21A-12259 type (see wire sets below). For more than 20 years, Top Fuel Dragsters and Funny Cars equipped with Mallory "SUPER-MAG" ignitions have won nearly every NHRA National event. The turning of the distributor shaft pushes out the weights advancing the timing as RPM is increased. Lucas distributors Re-built, restored and re-curved. com >From "Lucas Equipment and Spare Parts 1945-1960" Year Stock # ECM Curve Advance Springs 1953-1955 40367D/E 364 11-13 Distributor Lucas DM2 All our Mallory distributors are only suitable replacements for vehicles specified with Lucas distributors. Classic Mini, Electrical & Ignition, Ignition System, 9, ADJUSTER KIT, Lucas 25D & 23D, 1  21 Mar 2009 One thing every mini owner with classic Lucas points-type A common problem is that the 2 small distributor advance springs get weak, and  Lucas Distributor Service and Vacuum Diaphragm Failures The screws interfere with the mechanical advance counterweights and jam between the weights The design was short-lived and was replaced by the spring style, about 1957. And the other side. Apr 08, 2016 · Before doing a full timing job on my 73 LM 318, I went to the distributor springs and used penetrating oil to clean the rust and then used silicone spray to lube them up. 25 petrol but I guessing that there’ll be more knowledge and help amongst Series owners. Prices listed are correct at the time of publication. Vacuum advance timing uses a manifold vacuum that reacts to the rotation of a position sensor mounting plate located in the distributor. Database owned and maintained by Marcel Chichak. 4. This document will look at tuning the advance curve of Lucas distributors, 23D/25D and 43D/45D types in particular, but the principles and approaches used apply to any distributor with mechanical advance. Note: Distributor 41643 (45DE4) could have a vacuum unit (part # unknown) attached, however the movable distributor base plate was pinned to prevent movement. Component parts are not interchangeable with other types. into the distributor when new at Lucas. The springs adjust the advance rate. Prefix. I happend to have some radiator and fan clearence problems in AV8 deals with them, because of the lenght of the dizzy. 12ce, 12v The Advance Auto Parts core charge presented to you online today with your item is representative of the most common core charge. e. Jan 31, 2018 · Timing and ignition advance is set by one of three possible mechanisms, dependent on which type of distributor is fitted, a manual Lucas DJ4, Lucas automatic DK4 series or Bosch. We can also help you set up ported vacuum and vacuum advance if your car is 1969 or later. If you go down that route you might want to check what's in there - springs and bobweights. Apr 27, 2005 · They have full mechanical advance and have the early 3bolt camcover pattern. The DL8 was similar but used a remote amp. we supply lucas electrical spare parts and accessories for your classic and modern vehicles Bulbs Switchgear Wiper Blades Wiring Products and Consumables Starter Motors Solenoids and Alternators Auto Electrical Spares | Suppliers of Lucas Spare Parts & Accessories Focusing on a bunch of distributor advance springs and much more available for sale today. Figure most of their Lucas rebuilds start somewhere between $130 and $200. Jeff said that he could polish the housing for an additional fee, so. 16 Apr 2015 What is meant by a timing advance-curve? Inside the distributor are advance springs and weights that are designed to advance the timing by . We can also change the specification of your distributor. The early cars had an OPUS ignition system, which was replaced with a Constant Energy Ignition (CEI) system in 1982; both of these systems used a Lucas distributor and both have a history of centrifugal advance seizure, but the distributors are different. This is a very high quality motorcycle part that will fit the Triumph, BSA, and Norton. Importers and Warehouse Distributors of Parts and Accessories for Classic British Motorcycles 391 Series - 391-5 391-54415642 springs, advance unit PR: Pertronix Billet Distributor Advance Spring Kit, D700700 is the kit which includes 6 advance springs, 2 of each color and tension, so you can custom curve your new Pertronix Billet Distributor to the proper advance curve for maximum performance. , equipped with a regular Mallory distributor and D. Besides Lucas, we also rebuild Bosch and Delco distributors on a regular basis. That fitted to 2 bearing engines was designed to deliver, and marked as 3° i. Importers and Warehouse Distributors of Parts and Accessories for Classic British Motorcycles 391 Series - 391-5 391-54415642 springs, advance unit PR: A non-vacuum distributor, which suits most tuned X/Flow engines using camshafts such as A2, BCF1, Piper 270,285, Kent 234,244 in conjunction with side draught carburettors. 0 to 2. Lucas Spares for DKX1A Distributor Genuine Lucas NOS Auto Advance Weights fits 250cc C10-C10L-C11 Plunger ( Spring ) Frame Models Part No. Disassembly and reassembly is pretty easy, but there are a couple key mistakes to avoid. May 17, 2017 · Lighter springs allow the advance to begin at a lower rpm. It has 12 different, multi-colored springs. Advanced Distributors is your source for automotive distributor service. 10 Dec 2014 This slackness results in the distributor giving too much advance too a stronger spring can be obtained from another Lucas 25D distributor. Advance Mechanism. 017in, 0. co. One of the first fully electronic systems to become established was Lucas OPUS which was initially proven in racing at Formula One level and then entered production on the Jaguar V12 - an engine for which contact breakers would have been totally impractical. There are also certain signs of a malfunctioning distributor. 12g2055 - new - distributor - with vacuum advance unit. It is therefore, essential that this type of distributor has the weights, springs and swivel plates replaced at the slightest sign of wear. Hope this helps John Lucas 45D distributor with one-piece contact breaker and non-adjustable vacuum advance unit. Ignition Rotor (Distributor Rotor), Fits Pertronix Billet Distributors, EACH Triumph Electrical Parts Triumph Genuine Lucas 18D2 Distributor Cap 425049 1957-62 3TA 5TA 6T T100SS. Distributor cap PR353/E distributor, brush and spring PR353/K distributor, contact set PR353/P Distributor advance spring PR353F Distributor rotor 1 PR353H Distributor condensor 1 PR353M Distributor, moulded base 1 PR354 Coil, Series D 1 PR355 Rear Reflector, Series D 1 PR36/18 Spark Plug N5 2 PR36/20 Spark Plug N4G 2 PR361 Aug 27, 2015 · Advanced Distributors rebuilds older distributors, including all of the popular Lucas units fitted to these older British cars, to as-new condition. Check for lateral and vertical movement of the central distributor shaft. Sep 12, 2011 · The distributor contains a cam and two springs. 3. Lucas 25D4 Distributor and Spring Specifications. (this being the single cylinder points housing with the same casting and drive shaft. Though there is a standard centrifugal advance arrangement, apparently all of the later model TR6s lacked any provision for vacuum advance, and some, including mine, only had vacuum retard capability. It is particularly well suited to Weber carb installations. The Jaguar V12 was fitted with a Lucas distributor up to 1989, when the Marelli ignition One is stretching the centrifugal advance springs, only too easy to do. B. INTRODUCTION: The Lucas 25D4 distributor was used in the MGB, and other, automobiles from 1962 until late 1974 . Mar 19, 2017 · distributor without distorting the housing. MGB 25D4 Distributor 1962-74. Dec 18, 2009 · There are two main types of advance mechanism built into the distributor. In most cases, neither the advance curves nor vacuum characteristics bear any relevance to the vehicles they are claimed to be suitable for. Identified by 2 screws and a pin in the baseplate and a grommett fitted into the cut out in the side of the distributor body. 6L) and early 911 (2. The result was a bit LUCAS DISTRIBUTOR SPECIFICATIONS - IG-126. 38mm; Ducelier 0. LUCAS. Bosch distributors are found on many different cars and are generally very reliable. Our quote will include New Parts or Remanufactured Parts; Bead Blasting, Repainting, Regreasing, Contact Point Set, NOS Condensor, NOS Rotor, NOS Cap, Vacuum Unit, New Centrifical Springs, Shim, Centrifical. Snap the two side clips into place and you're done. But after a high mileage you may find that the engine isn't running quite as it should. EA 391-400415/ER points, distr, early, econo. A pair of bob-weights spin atop the distributor shaft, restrained by small springs. There should be almost none. British Vacuum Unit, which is not affiliated with ZF Friedrichshafen AG, the owner the US trademark for Lucas®. Years later I noticed the bob weights were marked 7 degrees. For years, Mallory has also been involved in all types of motorsports, including drag racing, sprint car racing and NASCAR. 43mm) and the surfaces should not be Lucas Spares for DKX1A Distributor Genuine Lucas NOS Auto Advance Weights fits 250cc C10-C10L-C11 Plunger ( Spring ) Frame Models Part No. The second way to test the vacuum advance does not require a pickup timing light. All prices exclude VAT. P. TC and early TD (prior to XPAG TD 2/20943) with high compression cannot use the D2A4 distributor. We specialize in precision rebuilds and repair of distributors for most vintage and collector vehicles, including all Lucas, Bosch, Prestolite, and Delco distributors. 1 Jul 2002 This document will look at tuning the advance curve of Lucas distributor equipped with an 18º cam and a very weak primary spring so that its  The Lucas 25D4 distributor was used in the MGB, and other, automobiles from to a stationary position and their rate of advance controlled by two springs. In a 123 ignition distributor, all moving parts – like the original points, the centrifugal weights, the springs, the bearings and the vacuum-diaphragm – have been replaced with just one moving part: the central shaft with the rotor. Tuning The Lucas Distributor: The document looks at tuning the advance curve of Lucas distributors, 23D/25D and 43D/45D types in particular. Providing reliable service, friendly staff and the nations top beverage products, including Pepsi and Budweiser, we strive to be the premier business partner for our customers. Lucas Oil Products, Inc. Far to much! Our distributors give excellent performance in all Jaguar 6 cylinder cars. 4 MK2 Jaguar distributor and want it rebuilt but changed to 4. See the Prices page for details. We manufacture new, rebuild and restore Lucas vacuum units to original with Many distributor over advance at low RPMs because of weak springs and over  A Compilation of Lucas and Delco Remy distributor specifications as used on the MG and Triumph automobiles, listing advance curves and vacuum curves  Page 5 - Lucas Info - Starter motors, Polarisation of Dynamos, MGB Circlip I tried to get the “C's” distributor remapped when the problem became so bad that in the early “C's” had the wrong advance springs fitted, by guess who, LUCAS. As the engine speed increases, a pair of weights under the plate works against springs holding the top section of the shaft. 42156: Lucas/BSA Head Lamp Shell Genuine Lucas ( used Vacuum advance applications: Disconnect the vacuum hose to UNILITE® Distributor vacuum chamber at the carburetor and temporarily plug this carburetor fitting. The purpose of BSA Unit Singles LLC is to provide enthusiasts of C15s, B40s, C25s, B25s,T25s, B44s and B50s with a single source supplier for parts and accessories for these models. Lucas Distributor. The spark jumps from the rotor to the spark plug wire terminal of the cap and on to the spark plug. Distributors for Porsche 356, 912 & Early 911. look at advance curve kit, £11. Trying my best, I have not included anything here I could not verify from at least two different sources This Hi, I am wondering about the advance springs too hence my recent dismantling of the 35DE8 distributor (was planning to swap the springs but wanted to compare advance curves first). Visit our "Lucas Distributors" page for re-build information. The springs inside the distributor housing can be changed either one or both. ) The timely acquisition of a large inventory of original Lucas distributor parts, including probably the world's largest stock of advance springs, was the catalyst to make Distributor Doctor possible. Item Name: HS25D4 Distributor with 3LUC4-25D Electronic Ignition. This is the long list of all known original Lucas distributors (and specifications). Lucas 45D distributor with one-piece contact breaker and non-adjustable vacuum advance unit. For high revs and high compression, a "Lucas SPORTS" coil is recommended as it is suitable for revs to 8000 RPM As the distributor runs at 1/2 engine speed, the advance and rpm are doubled for crankshaft readings. 2 E-type spec. The engine is of the later 5 bearing type and currently has a Ducelier distributor fitted. Lucas Distributor Database: Database containing a wealth of information on Lucas distributors and which cars they were fitted to. Our company is a small business devoted to keeping the oldies on the road. I bought a new one from them many years ago after the original housing cracked, and while the car started and ran perfectly it always felt a bit flat at the top end. Not only does it control your engine, but it also protects it as well. Nothing major. 015in, 0. A curve kit with a selection of advance springs That was a Mallory dual point with YH advance. The moment at which the spark should occur in the cylinder is not always the same, but varies with engine load and speed. uk : Email or call for P&P charges Hi Blue, I have Triumph workshop manual for herald vitesse and spitfire and haynes manual for spitfire 1500. A distributor transfers a high-voltage pulse to the cylinders to power the engine, so a faulty distributor is a common cause of loss of power. The business is run by Martin Jay who was responsible for Sales and Technical Training in Europe and North America for Crypton, the engine The 123/JAG-6-R-V is designed to improve the performance of the Jaguar 3. H. 163-739 Vacuum Advance Adjuster Kit, 22D & 25D|Handy kit has everything you need Includes knurled nut, spring, ratchet clip and shaft end clip. The Lucas 25D distributor was used in both the MGB and Midget/Sprite. The Distributor will be completely disassembled and rebuilt. We carry top brands like MSD, Accel, Pertronix, Mallory, Painless, Powermaster, NGK & Denso. The Lucas 18D2 distributor was used on Dominators and Triumphs of the late 50s also some AJS twins. No I don't mean harder plugs, competition coils, lumenition etc. Electronic Ignition - 18D2-18Dl. The vacuum advance control unit on the distributor is intended to advance the ignition timing above and beyond the limits of the mechanical advance (mechanical advance consists of the initial timing plus the centrifugal advance that the distributor adds as rpm comes up) under light to medium throttle settings. I start by placing an assembled distributor - yours or our rebuilt distributor - on the distributor machine. A holy trinity of Rover, Lucas, Bosch created the Rover SD1 V8 Electronic Ignition System but few pilgrims know it well. A saintly minority have it taped, including auto-bods who never tell anybody anything in fear of their secrets being usurped and a handful of enthusiasts who, even when trying to be helpful, display an incomplete gift of clarity to impart the joyous message to the congregation! Nov 29, 2019 · Really I've found the good old Lucas distributor to be extremely reliable. 17, the “Mallory Special”, at the Indianapolis Speedway in 1933 with a top speed of 100 M. Mallory continued to set records at “The Brickyard” for many years, including winning more than 16 consecutive races between 1961 and 1983. Distributor is a quality reproduction of the original vacuum-advance Lucas 45D4 vacuum-advance 41427 distributor. Click for 20-page 159-KB pdf file. Use only components for 45D4 distributors. ‘LUCAS’ distributor rebuilding service. Please be aware that the marketplace is flooded with low grade reproduction copies of the original UK Lucas distributors which cost $7. lucas dissy question. Replaces most 4-cylinder, vacuum-advance Lucas distributors. Magneto Ignition Supplies Price List January 2018: email. Mechanical advance uses the weights and springs in the distributor to rotate and alter the timing sensor shaft’s position relative to the engine’s position. Check condition of rotor arm for signs of damage or arcing, also check cap and clean contacts (better still, fit new). on the distributor it should be a Lucas 35DLM8. Each distributor, while retaining the basic model number, will also have a "specification number" stamped into the side to identify the exact application it was intended for. Stock, the HEI distributor advance mechanism is pretty good but the stock springs are too strong, causing the advance curve to come in too slowly, if it ever gets fully advanced at all. Addition of a new fuse block, mechanical brake light switch, third brake light, illuminated reflectors, fuel pump inertia switch, fusing the fuel pump, installation of Tow Eyes and Tie Down Hooks. >From "Lucas Equipment and Spare Parts 1945-1960" Year Stock # ECM Curve Advance Springs 1953-1955 40367D/E 364 11-13 Distributor Lucas DM2 Aldon Ignitor unit to suit 23D4-25D4 and DM2-40510A, 40743A 4 cylinder Lucas distributors. Email for advice bvu@ britishvacuumunit. lucas distributor advance springs