Section 04 ENGINE
Subsection 04 (LEAK TEST AND ENGINE DIMENSION MEASUREMENT)
04-04-13
CHECKING CRANKSHAFT
ALIGNMENT
Install a degree wheel (P/N 414 3529 00) on crank-
shaft end.
Remove both spark plugs.
Install a TDC gauge (P/N 414 1047 00) in spark
plug hole on MAG side.
Bring MAG piston at top dead center.
Rotate degree wheel (not crankshaft) so that 360°
mark aligns with center of crankcase. Scribe a
mark on crankcase.
Remove TDC gauge and install it on PTO side.
Bring PTO piston to top dead center.
Interval between cylinders must be exactly 180°.
Any other reading indicates a misaligned (twisted)
crankshaft.
0
90
80
70
60
50
40
30
20
10
180
0
A06C1TA
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