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TM 5-4320-313-14
6-3. TIMING COVER AND CAMSHAFT - Continued.
c. Cleaning.
WARNING
Do not breathe cleaning solvent P-D-680 vapors for long periods of time or use solvent near open
flames. To avoid illness, explosion, or fire, only use solvent in well-ventilated areas away from open
flames.
(1) Clean all parts with a rag and cleaning solvent.
(2) Allow to dry.
d. Inspection.
(1) Inspect timing cover for cracks or signs of wear. Replace a damaged timing cover.
(2) Inspect camshaft for missing teeth on gear or scoring of camshaft lobes. Replace a damaged camshaft.
(3) Inspect all bearings for scoring or pitting. Replace a damaged bearing.
(4) Inspect camshaft bearing (22) for damage. If bearing (22) is damaged, remove by using a punch.
e. Repair. Repair is limited to replacing damaged parts.
f. Reassembly. (Refer to figure 6-8).
(1) Install a new bearing (23) using camshaft needle bearing mounting device.
(2) Install spacer (22), roller bearing (21), flanged wheel (20), circlip (19), spring washer (18), and nut (17) on
camshaft (16).
WARNING
Wear asbestos gloves to avoid serious burns when handling heated parts.
(3) Using and oven, heat timing cover (4) to 1200 to 1600F (500 to 700C). Install new intermediate ring (14)
and drive in new ball bearing (15).
(4) While timing cover is still hot, drive in camshaft (16).
(5) Drive in new dry bushing (13).
6-12
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