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 TM 5-2805-261-13
4-21. BREAKER POINT ADJUSTMENT
This task covers:
Adjustment of breaker points.
INITIAL SETUP :
Tools:
Equipment Condition:
Timing light-CD-85
per procedure
Feeler gage
Timing fixture-386635
Materials/Parts:
None
Personnel Required:
Approximate Time Required (minutes):
1 Mechanic
30
LOCATION/ITEM
ACTION
REMARKS
1. Starter
Remove.
See para 3-9.
2. Flywheel
Remove.
See para 4-17.
3. Ignition coils
Remove.
See para 4-18.
4. Breaker point
Disconnect all leads.
Connect meter or test light between breaker plate
assemblies
and no. 1 breaker point screw terminal.
5. Timing fixture
Place on crankshaft.
Rotate crankshaft so side of fixture marked "T" is
aligned with first timing mark on armature plate.
NOTE
Rotate crankshaft only in
clockwise direction.
Figure 4-17. Timing the engine
6. Timing fixture
Move slowly until light
The light will come on at the exact instant the breaker
comes on.
points open. The points should break open when
timing fixture is midway between the two timing
marks on the armature plate.
Change 1
4-28
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