TM 10-4320-318-14
6-3. MAINTENANCE OF CAMSHAFT AND TIMING COVER- (Cont)
b.
DISASSEMBLE.
CAUTION
Do not use open flame. Open flame will damage timing cover.
(1) Heat timing cover (4) to 120-160°F (50-70 °C) and remove the assembled camshaft (5).
(2) Remove circlip (7) and flanged wheel (8).
(3) Press ball bearing (9) off camshaft (5).
(4) Remove spacer (10).
(5) Remove ball bearing (11) and interim ring (12).
(6) Remove oil seal (13).
Inspect camshaft needle bearing. If defective, replace needle bearing. Using punching device (Figure
6-3), push needle bearing (14, Figure 6-1) out of crankcase.
Figure 6-3. Needle Bearing Removal
c.
INSPECT.
(1) Clean all parts.
(2) Inspect gear teeth for pitting, burrs, and broken teeth. Replace camshaft if damaged.
(3) Inspect ball bearings for roughness of movement.
(4) Inspect cam lobes for wear.
6-4
(7)
