SECTION EMA
SUB GROUP B - Ignition System and Cylinder Compressions
LUCAS CONSTANT ENERGY IGNITION
A). Check for a spark at each plug lead.
If all are sparking, remove plugs and check condition. If serviceable, clean and gap to 0.9 mm (0.035"). Before replacing plugs,check cylinder compressions as (B). If no spark at leads, proceed as TEST 1.
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B). Check cylinder compressions:
Remove spark plugs.
Connect a remote control switch to battery and starter motor solenoid.
Use a compression tester to measure cylinder compressions with throttle fully
open.
Check that cylinder compressions are fairly even.
Cold engine (dry bores) - 120 p.s.i . minimum (at sea level)
Hot engine - 130 p.s .i . minimum (at sea level)
C). Check ignition timing:
Nominal static and idle: 1 degree BTDC ( +/- 1 degree)
@ 4,000 rpm with vacuum pipes disconnected from capsule: 17 degrees BTDC (+/- 2 degrees)
SUB GROUP B - Ignition System and Cylinder Compressions
LUCAS CONSTANT ENERGY IGNITION
A). Check for a spark at each plug lead.
If all are sparking, remove plugs and check condition. If serviceable, clean and gap to 0.9 mm (0.035"). Before replacing plugs,check cylinder compressions as (B). If no spark at leads, proceed as TEST 1.
To view an item below in more detail simply click on it, and it will automatically enlarge.
To view its full size, click on the "screen maximise symbol" in the pop-up control table at the bottom of the page.
B). Check cylinder compressions:
Remove spark plugs.
Connect a remote control switch to battery and starter motor solenoid.
Use a compression tester to measure cylinder compressions with throttle fully
open.
Check that cylinder compressions are fairly even.
Cold engine (dry bores) - 120 p.s.i . minimum (at sea level)
Hot engine - 130 p.s .i . minimum (at sea level)
C). Check ignition timing:
Nominal static and idle: 1 degree BTDC ( +/- 1 degree)
@ 4,000 rpm with vacuum pipes disconnected from capsule: 17 degrees BTDC (+/- 2 degrees)