Check Crankshaft:; Check Camshaft:; Section 11: Crankshaft And Camshaft - Generac Power Systems GTH760 Service Manual

CHECK CRANKSHAFT:

Inspect crankshaft threads, keyways and timing gear for
damage or wear. If threads, keyways or timing gear are dam-
aged or worn, replace crankshaft. Check journals for scoring.
If journals are scored, replace crankshaft. Check journals for
wear. See crankshaft reject sizes in Section 14.
MAGNETO
JOURNAL
FLYWHEEL
KEY
OIL
GALLERY
Figure 11-1. Check Crankshaft
OIL
GALLERIES
PTO
JOURNAL
TIMING
CRANKPIN
GEAR
SeCTIoN 11: CrANkSHAFT & CAMSHAFT

CHECK CAMSHAFT:

Inspect gear teeth, lobes and journals for wear and nicks (see
Figure 11-2). Check journals and lobes for scoring and wear.
Replace camshaft if not to specification noted in Section 14.
INTAKE
LOBES
MAGNETO
JOURNAL
EXHAUST
Figure 11-2. Check Camshaft
11-1
PTO
LOBES
JOURNAL
11