TM 9-4940-549-14&P
Make sure that timing mark on camshaft
drive gear mates with timing mark on
crankshaft gear.
(1) Install camshaft in reverse order of removal procedures,
(2) Check camshaft end thrust as follows:
(a) Attach a dial indicator to the cylinder block and position
so that the foot contacts the end of the camshaft.
(b) Press camshaft as far into the cylinder block as it will go.
(c) Set dial indicator to "zero" position.
(d) Move camshaft as far forward as it will go.
Reading shall not exceed 0.0120.
(e) Check indicator reading.
(f) If reading exceeds specified limit, remove camshaft and
replace thrust plate.
(3) Check backlash between camshaft drive gear and crankshaft
gear. Backlash shall be 0.0010 to 0.0030. If backlash is not
within specified limits, both camshaft drive gear and crankshaft
gear must be replaced.
Removal.
a.
(1)
Remove oil pump assembly (para. 10-4).
Remove flywheel and flywheel housing (para. 12-2).
(2)
Remove cylinder head and rocker arm assembly (para. 12-4).
(3)
(4)
Using a ridge cutter, remove the ridge from the top of each
cylinder.
Remove screws (3, figure 12-11) and connecting rod bearing
(5)
caps (4) and lower half of connecting rod bearing (7).
(6)
Using a wooden dowel, push pistons and connecting rods out
top of cylinder block.
NOTE
Remove crankshaft to simplify removal
if necessary.
