New HS45D4 Distributor
with 3LUC4-45D Electronic Ignition
Replaces Lucas 4-Cylinder 45D Distributors
(for 12-volt, negative ground electrical systems only)
Brand New Vacuum-advance HS45D4 Distributor Replaces Most 4-cylinder
Vacuum-Advance, Points-Based Lucas Distributors
Includes 3LUC4-45D 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 3LUC4-45D 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 45D4 vacuum-advance 41427 distributor. This distributor requires a vacuum source from the carburetor or throttle body (when used with fuel injection). Uses standard Lucas 45D4 distributor cap, rotor, etc. Perfect replacement for worn-out Lucas 45D4, 48D4, 54D4 distributors.
The HS45D4 distributor is compatible with these standard Lucas parts:
Distributor: Lucas 41427, 45D4, 41630
Rotor: Lucas 54422803, DRB104C, (superior red rotor included with distributor)
Distributor Cap: Lucas 54427109, DDB108
Replaces 4-cylinder Lucas 45D4, 48D4,
54D4 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.
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 HS45D4 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 electrical system.
Coil: A coil with 3.0 Ohms or more primary resistance must be used. The Bosch Black Coil with 3.4 Ohms primary resistance is ideal for 4- and 6-cylinder ignition kits.
To measure coil 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 Ohmmeter’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 + terminal, is more than 13.9 volts at any RPM level, 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 45D4, 48D4 Vacuum-advance Distributors:
Austin Rover (Leyland) (See also Daimler, Jaguar, MG, Land Rover, Range Rover, Triumph)
1974-on Lucas 45D4, 54D4, 4-cyl CCW, centrifugal/vacuum-advance
1974-79 4-cyl all models - Lucas 45D4
1957-64 4-cyl all models - Lucas 45D4
1974-on MkII & III, Mini 90, Miini 120 - Lucas 45D4 distributor, 4-cyl, CCW, vacuum-advance
1977-89 Lucas 45D4 distributor, 4-cyl, CCW, vacuum-advance
45D4, 48D4, 54D4, 4-cyl, CCW
Matra (See Talbot)
All 4-cyl all models - Lucas 45D4
1974-83 Lucas 45D4 distributors, 4-cyl, CCW, all models
Morris (See Austin Rover)
1974-75 4-cyl all models - Lucas 45D4
1977-79 4-cyl 2-liter - Lucas 45D4
1974-on Fox, Kitten, Robin, Rialto - Lucas 45D4 distributor, 4-cyl, CCW, vacuum-advance
1974-76 Sceptre, Rapier - Lucas 45D4 distributor, 4-cyl, CCW, vacuum-advance
1974-on Dolomite: 1300, 1500 Toledo, Spitfire 1500 - Lucas 45D4 distributor, 4-cyl, CCW, vacuum-advance
1975 4-cyl Princess 1500 - Lucas 45D4
1974-75 4-cyl all models - Lucas 45D4
4-cylinder Lucas (45D4, 48D4
and 54D4 distributors)
LUCAS 45D4 distributors:
Austin: Allegro 1100, 1000, Mini Van + Pickup 1100, Clubman 1000, 1300 GT, 1800 S, 850 Mini, 1000 Mini, 1100, Innocenti 1000/1001, Relian
BMC: Austin 850LC, 998 Mini, 850 Van + Pickup, Austin 1000 Mini, Austin 1800, Austin Maxi 1500, Austin Princess 1300/1800, Austin Allegro 1300HC, Austin 1300 France
Morris Marina 1.3/440/575/1.8GT+HL, Morris 1.3, 1800 MKIII, Mini 1275
Land Rover: 2.25
Leyland: Marina 1.8TC/II GT/HL 1.0, Midget 1500, Toledo 1500
Lotus: Elite, Eclat, Esprit
MG: 1300, Midget 1500, B18V
Reliant: TW9 + E, Robin, Kitten
Rootes Group (Chrysler/Dodge/Hillman/Singer/Sunbeam/Talbot): Commer, Carier, Imp, Chamois, Imp Sport, Hunter 1.5/1.7, Rapier 1.7/H120, Alpine, Avenger 1250/1500/1600, Tiger II, Pay Kan 1.7, Vogue, Sceptre
Rover: 1800 HC
Triumph: Dolomite 1854, Spitfire 1500
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.
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.
Replaces most 4-cylinder, vacuum-advance, points-based Lucas 45D distributors
Replacement distributor for Lucas 45D4 4-cylinder vacuum-advance distributors. Replaces stock Lucas 4-cylinder 45D4 distributor. Requires vacuum source from carburetor or throttle body. With 3LUC4-45D electronic ignition installed, instead of points/condenser. Everything you need included - no external ignition box required.
3.4 Ω primary resistance
3.4 Ohms primary resistance
Ideal for Use with Hot-Spark Electronic Ignition Conversion Kits with red 3-series ignition module or for use with breaker points.
Heavy-duty coil with 3.3 Ohms primary resistance. Ideal for points or electronic ignition. Produces strong, blue spark at the
|HS14BR||Hot-Spark 1.4 Ohm Heavy-Duty Ceramic External Ballast Resistor|
1.4 Ohm Ballast Resistor - Ideal for Use with Electronic Ignition and High-Voltage Charging Systems
Also reduces burning and pitting of contact breaker points.
1.4 Ohm heavy-duty, external ceramic ballast resistor - installed between
coil's + terminal and condenser or HotSpark ignition's red wire. Lowers
amperage to points or ignition module, ensuring trouble-free operation.
Installed on engine firewall or on coil. Ideal for use with high-voltage
charging systems and electronic ignition or points.
Foreign Orders: Shipping discount available if purchasing multiple items.
Dealer Inquiries welcomed.
© 2005-2020 Hot Spark®