TM 5-2815-241-34&P
INJECTOR TIMING ADJUSTMENT - CONTINUED
ACTION
LOCATION
ITEM
REMARKS
9. Cylinder block (1)
Crankshaft (2)
10. Dial indicator (4)
Dial face (5), dial
a.
Set dial face to aline zero with dial
indicator pointer (6),
indicator pointer.
and thumbscrew (7)
b.
Turn thumbscrew to lock dial face.
11. Cylinder block (1)
Crankshaft (2)
Using crankshaft barring tool, rotate crank-
shaft counterclockwise through TDC to 45
degrees BTDC (before top dead center).
12. ST-593 injector
timing tool (8)
Piston travel
plunger (3) and dial
indicator stem (9)
13.
Dial indicator (10)
14.
Dial indicator (4)
N O T E
Using crankshaft barring tool, rotate crank-
shaft clockwise 90 degrees ATDC (after top
dead center).
Piston travel plunger (3) will be near
its lowest position.
Using crankshaft barring tool, rotate crank-
shaft clockwise until piston travel plunger on
fixture is in contact with dial indicator stem.
Using crankshaft barring tool, slowly rotate
crankshaft in clockwise direction until dial
indicator reads 0.0032 inch (0.0812 mm)
before zero.
This position is actually 0.2032 Inch
before zero on dial Indicator since the
pointer has rotated twice.
Note reading.
Reading should be within limits given
In table.
If Injector timing is not within specification given, perform step 15 before making
changes in cam follower housing gaskets to correct injector timing.
15. ST-593 injector
timing tool (8)
Dial indicators
(4 and 10)
a.
Check dial indicator positioning. Be sure
dial indicators are not bottoming or
binding.
Carefully recheck TDC.
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