New HS25D4 Distributor
with 3LUC4-25D Electronic Ignition
Replaces Lucas 23D, 25D 4-Cylinder Distributors
(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 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
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.
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).
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.
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
Austin Healy
1958-71 4-cyl Sprite - Lucas 25D4 - 3LUC4-25D
1958-71 4-cyl Sprite - Lucas 23D4 - 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
Lucas Distributors
22D4, 23D4, 25D4 4-cyl, CCW - 3LUC4-25D
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) |
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.
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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.
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Foreign Orders: Shipping discount available if purchasing multiple items. Email us:
Lucas Distributor Installation Instructions:
www.Hot-Spark.com/Installing-HS45D4-Distributor.pdf
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