TM 9-2320-280-34
This task covers:
a. Timing Check
b. Timing Adjustment
INITIAL SETUP:
T__ls
_oo_
Manual_R_fe____es
______ _e _ renc __
General mechanic's tool kit:
TM 9-2320-280-10
automotive (Appendix G, Item 1)
TM 9-2320-280-20
S__ci______s
_pe _ al Tool
E___pm_____ondi_i__
_ qui __ ent C ___ t on
Timing bracket gauge (Appendix G, Item 20)
Hood raised and secured (TM 9-2320-280-10).
Dynamic timing meter (Appendix G, Item 21)
Engine access cover removed (TM 9-2320-280-20).
Companion seat and battery box cover removed
___ er___ Part _
Mat__ials/____s
(TM 9-2320-280-20).
Metallic wool (Appendix B, Item 60)
__ ner_ ___ t_ Ins _ uct ons
Ge___al_Safe_y ___tr___i___
_ e_____ l R ___ re _
P_rsonne___equi__d
Never adjust timing while engine is running.
One mechanic
___ nt _____ _e __
Mai__enance_L_vel
One assistant
Direct support
a. Timing Check
NOTE
Magnetic pickup receptacle on timing bracket must be correctly
positioned or timing meter will not register correctly.
1.
Insert timing bracket gauge into magnetic pickup receptacle (8) on timing bracket (1).
2.
Rotate timing bracket gauge so pointer on gauge fits into TDC notch (9) in timing bracket (1).
3.
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).
4.
Remove timing bracket gauge from pickup receptacle (8) on timing bracket (1).
NOTE
End of magnetic pickup must be .06 in. (1.5 mm) from torsional
damper.
5.
Install magnetic pickup (7) into magnetic pickup receptacle (8) and connect pickup lead (6) to tim-
ing meter.
NOTE
Clamp-on pickup must be used on a straight section of tube no
further than 4 in. (10 cm) from injection nozzle.
6.
Clean cylinder number one injection line (2) with metallic wool.
_AUTION
C _____
Do not overtighten clamp-on pickup or damage to pickup will
result.
7.
Install pickup (4) on injection line (2).
8.
Connect ground clip (3) to fuel injection line (2) and connect pickup lead (5) to timing meter.
9.
Route power leads of timing meter into battery compartment and connect red power lead (11) to
positive battery terminal (12) on rear battery (14).
10.
Connect black ground lead (10) to negative battery terminal (13) on rear battery (14). Display
should light up and read: SE-1 20.0.
