TM 9-4310-397-14
6-9.
CAMSHAFT, AND TIMING GEAR TRAIN. - Continued
(12)
Clean and inspect camshaft and thrust plate.
(a)
Clean camshaft and thrust plate in solvent (item 11, section II, appendix E). Dry with compressed
air.
(b)
Visually inspect camshaft lobes and journals for wear or damage. Replace as necessary. New cam
followers can be used with old camshaft (if camshaft is serviceable). However, do not reuse old cam
followers with a new camshaft.
NOTE
Very light score marks may be found, but are acceptable if valve lift is
within specification. Pitting or galling dictates replacement.
(13)
Measure camshaft thrust plate clearance. Check thrust plate clearance using a feeler gauge (Figure 6-46,
1). New part clearance is 0.003 - 0.009 in. (0.08 - 0.23 mm). Maximum allowable clearance is 0.015 in.
(0.38 mm). Replace parts as necessary.
Figure 6-46. Thrust Plate Clearance
(14)
Measure camshaft journals (Figure 6-47).
(a)
New camshaft journal diameter is 2.200 - 2.201 in. (55.87 - 55.90 mm).
Figure 6-47. Camshaft Journal Diameter
6-44
