Hot-Spark Performance Products - Electronic Ignition Conversion Kits for Ford, Delco, Autolite, Prestolite, Bosch, Hitachi, Mitsubishi, Lucas, Ducellier, Automotive, Agricultural, Industrial, Marine Distributors

New HS25D4 Distributor

with 3LUC4-25D Electronic Ignition

Replaces Lucas 23D, 25D 4-Cylinder Distributors

 

Distributor with 3LUC4-25D Electronic Ignition Replaces Lucas 25D4 Distributor


(for 12-volt, negative ground electrical systems only)

 

Brand New Vacuum-advance HS25D4 Distributor Replaces Most 4-cylinder Vacuum-Advance, Points-Based 25D Lucas Distributors

Includes 3LUC4-25D electronic ignition conversion kit already installed, ready to replace your worn-out Lucas 4-cylinder, vacuum-advance distributor – Just install distributor, connect the red wire to the coil's positive (+) terminal and the black wire to the coil's negative terminal ( – ), connect vacuum hose to carburetor/throttle body and set the timing - Simple!

Zero-maintenance 3LUC4-25D electronic ignition means you won't have to fool with points and timing again – always stays in perfect tune!

Distributor is a quality reproduction of the original vacuum-advance Lucas 25D4 vacuum-advance 41199 distributor. This distributor requires a vacuum source from the carburetor or throttle body (when used with fuel injection). Uses standard Lucas 25D4 distributor cap, rotor, etc. Perfect replacement for worn-out Lucas 23D4 and 25D4 distributors.

The HS25D4 distributor is compatible with these standard Lucas parts:

Distributor: Lucas 41199, 25D4
Rotor: Lucas 400052, (superior red rotor included with distributor)
Distributor Cap: Lucas Top-entry cap: 54417214, DDB106 or Side-entry cap: Lucas 54412480

Replaces 4-cylinder Lucas 23D4 and 25D4 Vacuum-advance Distributors

We inspect each distributor thoroughly; everything is checked, adjusted, lubricated, etc. We then set and test the advance curve on a precision distributor testing machine.

Installing the HS25D4 Distributor
Rotate the engine until the rotor is pointing at No.1 Cylinder's spark plug wire. Remove each spark plug wire from the old distributor cap, one-at-a-time, and insert it into the new distributor cap in the same location and order (cylinders 1-3-4-2, counter- or anti-clockwise).

Remove the old distributor and remove its clamp. Coat the new distributor's shaft and O-Ring with motor oil before sliding it into its hole. Look down into the engine's distributor hole to see how the distributor drive slot is oriented and turn the distributor shaft to match it. You might need to tap the distributor's rim gently to get the O-Ring started into the hole. Work the shaft down all the way, turning the rotor gently, as needed, until the distributor shaft gear settles into its slot and the rotor will no longer turn.

Turn the distributor body until the rotor points to the spark plug wire of No. 1 Cylinder. Place the cap on the new distributor. Tighten the distributor clamp enough so that the distributor can't turn on its own, but you can still turn it by hand.

Timing the HS25D4 Distributor
Use a stroboscopic timing light. Timing should be set initially to about 24° BTDC at 3,500+ RPM, vacuum hose connected. Firing order is: 1-3-4-2, counter-clockwise (anti-clockwise). The ignition timing should be checked with the engine running, using a stroboscopic timing light, ensuring optimum engine performance and economy. Paint a small line of white paint on both the reference pointer and the appropriate mark on the timing scale to make them more easily seen. With the engine running at the specified speed, the appropriate timing mark should be in line with the reference pointer. Rotate the distributor body clockwise to advance the timing, or counter-clockwise to retard it. Tighten the distributor clamp. Reconnect the vacuum line to the distributor's vacuum canister port.

This distributor requires a 12-volt, negative ground (earth) electrical system.

Coil: A coil with 3.0 Ohms or more primary resistance must be used. Stock Lucas 3.0+ Ohm points coil OK. The Bosch Black Coil with 3.4 Ohms primary resistance is ideal for use with HotSpark ignition kits.

To measure primary resistance: Label and remove all wires to coil ( + or - ). Using a common digital multimeter in the 200 Ω mode, cross the red and black leads of the Ohmmeter. Allow 10 seconds or more for the reading to settle and write down the reading. Still in the 200 Ohm mode, measure between coil’s + and - terminals. Allow a few seconds for the reading to settle, until it stabilizes. Subtract the previous reading, taken with the leads crossed, to compensate for multimeter’s inherent resistance. Do not use a low-resistance coil, such as the MSD or Accel coil; they don’t have enough primary resistance for this application.

Test the charging system's maximum voltage: If the charging system voltage, measured at the coil's positive terminal, is more than 13.9 volts at higher RPM levels, the voltage regulator likely needs replacing or a 1.4 Ohm ballast resistor should be wired between the coil's + terminal and the red HotSpark ignition wire. Too much voltage can damage the ignition module and other electronic components.

 

Replaces 4-cylinder Lucas 23D4 and 25D4 Vacuum-advance Distributors:

 

 

Austin
1963-74 4-cyl all models - Lucas 25D4 - 3LUC4-25D
 

Austin Healy

1958-71 4-cyl Sprite - Lucas 25D4 - 3LUC4-25D
1958-71 4-cyl Sprite - Lucas 23D4 - 3LUC4-25D

Austin Rover (Leyland) (See also Daimler, Jaguar, MG, Land Rover, Range Rover, Triumph)
Points-based Models:
1962-74 Lucas 23D4, 24D4, 25D4 4-cyl, CCW, centrifugal/vacuum-advance - 3LUC4-25D


Ford Europe

1956-63 4-cyl Consul - Lucas 25D4 - 3LUC4-25D
1964-66 4-cyl Cortina Lotus - Lucas 23D4 - 3LUC4-25D
1956-67 4-cyl Anglia - Lucas 25D4 - 3LUC4-25D
1964-70 4-cyl Cortina - Lucas 25D4 - 3LUC4-25D
1968-74 4-cyl Escort 1600cc - Lucas 25D4 - 3LUC4-25D
All 4-cyl OHV, in-line Engines: (Crossflow, Kent, Valencia)

1967-80 Lucas 25D4 distributor, 4-cyl, CCW, centrifugal-advance - 3LUC4-25D

 

Hillman
1962-73 4-cyl all models - Lucas 25D4 - 3LUC4-25D
1974-79 4-cyl all models - Lucas 45D4 - 3LUC4-45D
 

Humber
1962-70 4-cyl Hawk, Sceptre - Lucas25D4 - 3LUC4-25D

IHC Truck
1957-64 4-cyl all models - Lucas - 3LUC4-25D


Innocenti (Italy)
1968-73 Mini/Minor/Mini Cooper - Lucas 25D4 distributor, 4-cyl, CCW, vacuum-advance - 3LUC4-25D

Jensen
to 1974 Jensen Healey - Lucas 23D4 & 25D4 distributor, 4-cyl, CCW, vacuum-advance - 3LUC4-25D

Land Rover
1962-77 Lucas 25D4 distributor, 4-cyl, CCW, vacuum-advance - 3LUC4-25D

Leyland-Freight Rover
1965-73 Mini Van - Lucas 23D4, 25D4 distributors, 4-cyl, CCW, vacuum-advance & centrifugal-advance - 3LUC4-25D

Lotus
1967-79 Elan, Elan +2, Eclat, Elite, Esprit - Lucas 23D4/25D4 distributor, 4-cyl, CCW, all models - 3LUC4-25D
 

Lucas Distributors
22D4, 23D4, 25D4 4-cyl, CCW - 3LUC4-25D


Matra (See Sunbeam/Talbot)

MG

MGA, Magnette, Magnette, 1300, Midget, MGA (TC), MGB, MGB GT, MGC, MG Metro - 3LUC4-25D

All 4-cyl MGA twin cam - Lucas 23D4 - 3LUC4-25D
1963-74 4-cyl MGB, Midget - Lucas 25D4 - 3LUC4-25D
1967 4-cyl Midget - Lucas 23D4 - 3LUC4-25D
All 4-cyl all models - Lucas 45D4 - 3LUC4-45D
1963-74 Lucas 23D4 & 25D4 distributor, 4-cyl, CCW, all models - 3LUC4-25D

1974-83 Lucas 43D4, 45D4 distributors, 4-cyl, CCW, all models - 3LUC4-45D
 

Mini Cooper
1965-71 4-cyl Cooper S - Lucas 23D4 - 3LUC4-25D

Morgan
1963-66 Lucas 25D4 distributor, (one-piece points) 4-cyl, CCW, vacuum-advance - 3LUC4-25D

1963-66 4-cyl Plus Four - Lucas 25D4 - 3LUC4-25D

Morris (See Austin Rover)
1963-74 4-cyl all models - Lucas 25D4 - 3LUC4-25D

Riley
1963-70 4-cyl 1.5-liter Elf, Saloon - Lucas 25D4 - 3LUC4-25D
1967-70 4-cyl Kestrel 1100, 1300 - Lucas 25D4 - 3LUC4-25D


Range Rover
1963-76 4-cyl 2-liter - Lucas 25D4 - 3LUC4-25D

Reliant
1964-66 Lucas 25D4 distributor, (one-piece points) 4-cyl, CCW, vacuum-advance - 3LUC4-25D
1969-74 Rebel, Regal, Robin - Lucas 25D4 distributor, 4-cyl, CCW, vacuum-advance - 3LUC4-25D

 

Singer
1962-63 4-cyl Vogue - Lucas 25D4 - 3LUC4-25D
 

Sunbeam/Talbot
1966-68 4-cyl Sunbeam Alpine - Lucas 25D4 - 3LUC4-25D
1966-73 4-cyl Sunbeam Rapier - Lucas 25D4 - 3LUC4-25D
1969-73 Avenger, Hunter, Imp, Minx - Lucas 25D4 distributor, 4-cyl, CCW, vacuum-advance - 3LUC4-25D

Triumph
4-Cylinder Models:
1962-67 4-cyl all models - Lucas 25D4 - 3LUC4-25D

1962-67 TR3A,TR4, TR4A - Lucas 25D4 distributor, 4-cyl, CCW - 3LUC4-25D
1969-73 Herald; 1200, 13/60 - Lucas 25D4 distributor, 4-cyl, CCW, vacuum-advance - 3LUC4-25D


Vanden Plas
1965-68 4-cyl Princess 1100 - Lucas 25D4 - 3LUC4-25D
1968-72 4-cyl Princess 1300 - Lucas 25D4 - 3LUC4-25D

Wolseley

1958-73 4-cyl all models - Lucas 25D4 - 3LUC4-25D
1974-75 4-cyl all models - Lucas 45D4 - 3LUC4-45D

 

 

 

4-cylinder Lucas (22D4, 23D4 and 25D4) - 3LUC4-25D

Lucas 23D4 distributors: (without vacuum-advance)

BMC: 1969-72 Mini Cooper S MKIII 1.3, Mini Cooper 970/1071/1275S, Rally Mini

Ford: 1963-66 RS 1600 / 1968-73 RS 1600, Escort / 1975-80 RS 1800

Jensen: 1072-75 Healey 2L + GT

Lotus: 1963-66 Elan, Cortina / 1968-73 Elan + 2S, 130S, S4, Sprint / 1972-75 Elite, Eclat, Esprit

Morris: 1971-75 Marina 1.3

Reliant: 1973-77 Bug, Robin, TW9E

Talbot/Chrysler: 1965-67 Rapier v, Vogue MKiV


LUCAS 25D4 distributor: (with vacuum-advance)

Austin: A40, A60 L/HC automatic/Cambridge, 110, 1100, America, 1300 HC/LC, 1800 AC/LC/HC, Mini Traveler, FX4 Taxi

Austin-Healey: Sprite 1098, Sprite MKII

BMC: 848 Mini, 850 Mini, Mini Moke, A40, Midget, Sprite, 997 Mini Cooper LC, IV FG Trucks 2.2, WF Trucks 2.2, 998 Mini, 998 Mini Cooper LC/HC, Mini 1000 Saloon/Clubman/Estade, Mini Cooper S MKIII, 180 J4/190 J4/200 J4 Van + Pickup

Ford: Anglia, Anglia Super 1200, Cortina, Capri, Corsair LC

Jensen: Healey, Healey GT

Land Rover: II A, II B, III 2.6

Lotus: Cortina Twincam, Elan, Europa Special 1558 Twincam, Elite Eclat, Esprit

MG: A, Magnette MKIV 1.6L, 110 Sedan, B, GT, B 18 Mki-MKIII, Midget MKI-MKIV

Morgan: Four Four, 4-4 GT

Morris: Oxfod LC/autom./VI 1.6, Mini Minor, Minor 1000 LC, Marina 1.8 TC

Reliant: Sabre, Regal 3/25, Rebel

Riley: 7/42, Kestrel MKII + II 1.1, Elf, 4/72, Kestrel 1000

Rootes Group (Chrysler/Dodge/Hillman/Singer/Sunbeam/Talbot): Alpine + I-III, Imp 875, Minx + 1.7, Gazelle 1.5/1.7, Vogue MKIV, Hunter + 1.5/1.7, Chamois, Rapier + H12, Avenger 1.2/1.5

Rover: 2000 TC/SC, 2200 TC/SC

Talbot/Chrysler: Rapier IV, Alpine IV, Imp Sport, Chamois Sport, Stiletto

Triumph: Herald 1200, 12/50, TR4A, Herald 13/60, 1300, Toledo 1300, 1300 TC, Toledo 1500

Vanden Plas: Princess, Princess 1300

Wolseley: 1300, 1500, 16/60, Hornet, 18/25, 18/85

 

   

 

Hello, Hot-Spark -

This is to express my thanks for the excellent service you recently provided me. The Hot Spark electronic distributor has behaved faultlessly during our 17,000 miles trip through South and Central America.


Kind regards,

Ross Letten
Australia

 

International Buyers – Please Note:

  • Import duties, taxes and charges are not included in the item price or shipping charges. These charges are the buyer's responsibility.

  • Please check with your country's customs office to determine what these additional costs will be prior to bidding/buying.

 

 

HS25D4 Distributor

HS25D4 Distributor with 3LUC4-25D electronic ignition replaces most Lucas 4-cylinder  23D4 and 25D4  distributors

Distributor with 3LUC4-25D Electronic Ignition Replaces Lucas 25D4 Distributor

Replaces most 4-cylinder, vacuum-advance, points-based Lucas 25D distributors

Replacement distributor for Lucas 4-cylinder vacuum-advance distributors. Replaces stock Lucas 4-cylinder distributor. Requires vacuum source from carburetor or throttle body. With 3LUC4-25D electronic ignition installed, instead of points/condenser. Everything you need included - no external ignition box required.

Timing Set At:

30-32° BTDC @ 3,500+ RPM (full advance), vacuum hose disconnected and plugged. Use stroboscopic timing light, no load on engine (car sitting still).

Application:

Replaces most 4-cylinder, vacuum-advance Lucas 23D4 and 25D4 distributors. Requires available vacuum source on carburetor or throttle body.

For 12V negative ground electrical systems only.

Includes heavy-duty red rotor, distributor cap, distributor clamp and everything you need - no external ignition box required.

 

Coil Required:

Stock Lucas 3+ Ohm points coil OK. Coil must have 3.0 Ohms or more internal primary resistance. Bosch Black Coil recommended.

In stock:

Available:

 

Item Number: HS25D4
Price: US $109.95

Item Name: HS25D4 Distributor with 3LUC4-25D Electronic Ignition

Shipping: US $14.00, via USPS Priority Mail (2-3 business days) to anywhere in the USA

Replaces most 4-cylinder, vacuum-advance Lucas 25D distributors.

We inspect each distributor thoroughly; everything is checked, adjusted, lubricated, etc. We test and adjust each distributor for optimal performance with vehicles using 4-cylinder, vacuum-advance, points-based Lucas distributors.

Ready to install. Includes cap, rotor, distributor shaft O-Ring and everything you need - no external ignition box required.

Price: US $109.95

Price with Shipping

 

 

 

Foreign Orders: Shipping discount available if purchasing multiple items. Email us:

 

 

Lucas Distributor Installation Instructions:

 

www.Hot-Spark.com/Installing-HS45D4-Distributor.pdf

 

 

 

Hot-Spark Performance Products - Electronic Ignition Conversion Kits for Ford, Delco, Prestolite, Autolite, Bosch, Automotive, Agricultural, Industrial, Marine Distributors

 

 

 

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