NOTE: FOR DISTRIBUTOR RPM & DEGREES, DIVIDE SPECIFICATIONS BELOW BY 2

Distributor Part No.

Rot. ⁽¹⁾

Centrifugal Advance (Engine Degrees @ RPM)

Vacuum Advance (Engine Degrees @ In. of Hg)

Vacuum Retard (Engine Degrees @ In. of Hg)

35DE8

.....

45DE4 MGB

.....

2000

3500

4500

3.0

.....

11.0

.....

Spitfire

.....

850

1600

2600

3200

5000

1.0

.....

15.0

20.0

.....

45DM6

.....

47DE4

.....

880

1500

2100

3800

4500

.....

3.0

.....

11.0

15.0

⁽¹⁾	C (Clockwise), CC (Counterclockwise), viewed from rotor end.

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.

• Brakes feel soft, pull hard to one side, or make grinding noises.

• The engine overheats, stalls repeatedly, or misfires under load.

• You are missing required tools, torque specs, or safe lifting equipment.

• You are not confident in the next step or safety outcome.

Safety Warning

LUCAS Distributor Advance & Retard Specifications

Use the Manual With the Right Hardware

When to See a Mechanic

Rather have a pro handle this?

Safety Warning

LUCAS Distributor Advance &amp; Retard Specifications

Use the Manual With the Right Hardware

When to See a Mechanic

Rather have a pro handle this?

LUCAS Distributor Advance & Retard Specifications