3.5 distributor diferences

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This data will allow you to set your ignition where you need it the most accurate, at cruising speed rather than idle.



Early models with Lucas No. 41176 or 4278 stamped on distributor body

Ignition timing

Crankshaft Angle (6 degrees BTDC) Engine rev/min

30-34 degrees 4800

26- 30 degrees 3800

18-22 degrees 1800

14-18 degrees 1400

8-12 degrees 1000

6 degrees Below 600

Vaccum advance

Starts 101 mm (4 in) Hg

finishes 508 mm (20 in) Hg



Models with Lucas No. 41317 stamped on distributor body

Ignition timing

Crankshaft Angle (6 degrees BTDC) Crankshaft Angle (TDC) Engine rev/min

30-34 degrees 24-28 degrees 4800

26-30 degrees 20-24 degrees 3800

20-24 degree 14-18 degrees 2400

16-20 degrees 10-14 degrees 1800

9-12 degrees 3-3 degrees 1200

6-9 degrees 0-3 degrees 900

6 degrees 0 degrees Below 700

Vaccum advance

Starts 101 mm (4 in) Hg

finishes 508 mm (20 in) Hg



Models with Lucas No. 41392 or 41393 stamped on distributor body

Ignition timing

Crankshaft Angle (6 degrees BTDC) Engine rev/min

25-29 degrees 4400

20-24 degrees 2600

15-20 degrees 1800

8-12 degrees 1200

6 degrees Below 600

Vaccum advance

Starts 101 mm (4 in) Hg (41392 stamp), 101 mm (4 in) Hg (41393 stamp)

finishes 381 mm (15 in) Hg (41392 stamp), 508 mm (20 in) Hg (41393 stamp)

Models with Lucas No. 41394 stamped on distributor body

Ignition timing

Crankshaft Angle (TDC) Engine rev/min

26-30 degrees 4800

22-26 degrees 4000

15-19 degrees 2400

9-14 degrees 1800

2-6 degrees 12000

0 degrees Below 700

Vaccum advance

Starts 101 mm (4 in) Hg

finishes 508 mm (15 in) Hg

Models with Lucas No. 41573 stamped on distributor body

Ignition timing

Crankshaft Angle (6 degrees BTDC) Engine rev/min

26-30 degrees 4200

23-27 degrees 3500

18-22 degrees 2600

12-16 degrees 1500

8-12 degrees 1200

6-7 degrees 800

6 degrees Below 600

Vaccum advance

Starts 90 mm (3.50 in) Hg

finishes 381 mm (15 in) Hg