This task covers:
a. Timing Check
b. Timing Adjustment
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General mechanic's tool kit:
_pe _ al Tool
_ qui __ ent C ___ t on
Hood raised and secured (TM 9-2320-280-10).
Engine access cover removed (TM 9-2320-280-20).
Companion seat and battery box cover removed
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Never adjust timing while engine is running.
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a. Timing Check
Magnetic pickup receptacle on timing bracket must be correctly
positioned or timing meter will not register correctly.
Insert timing bracket gauge into magnetic pickup receptacle (8) on timing bracket (1).
Rotate timing bracket gauge so pointer on gauge fits into TDC notch (9) in timing bracket (1).
If pointer on gauge does not fit exactly into TDC notch (9), bend magnetic pickup receptacle (8)
until pointer on gauge fits exactly into TDC notch (9).
Remove timing bracket gauge from pickup receptacle (8) on timing bracket (1).
End of magnetic pickup must be .06 in. (1.5 mm) from torsional
Install magnetic pickup (7) into magnetic pickup receptacle (8) and connect pickup lead (6) to tim-
Clamp-on pickup must be used on a straight section of tube no
further than 4 in. (10 cm) from injection nozzle.
Clean cylinder number one injection line (2) with metallic wool.
Do not overtighten clamp-on pickup or damage to pickup will
Install pickup (4) on injection line (2).
Connect ground clip (3) to fuel injection line (2) and connect pickup lead (5) to timing meter.
Route power leads of timing meter into battery compartment and connect red power lead (11) to
positive battery terminal (12) on rear battery (14).
Connect black ground lead (10) to negative battery terminal (13) on rear battery (14). Display
should light up and read: SE-1 20.0.