TM 5-1940-322-24
0158 00
CAMSHAFT, CAM GEAR, AND CAM BUSHING MAINTENANCE (Contd)
INSTALLATION
CAUTION
Camshaft gear will be permanently distorted if overheated. Do not
heat oven to more then 300 F (149 C). Failure to comply may
result in damage to equipment.
1.
If camshaft gear (1) was removed, place camshaft gear (1) in oven with temperature set at 300 F
(149 C) for 45 minutes.
WARNING
Wear protective gloves when handling heated parts. Failure to
comply may result in injury to personnel.
2.
Install key (2) on camshaft (3). Remove heated gear (1) from oven. Align keyway in gear (1) with
key (2) on camshaft (3) and install gear (1) on camshaft (3) with timing marks facing away from
camshaft (3) and gear (1) seated against camshaft (3) shoulder.
CAUTION
Do not use water to reduce cooling time of gear. Failure to comply
may result in damage to equipment.
3.
Keep camshaft (3) in vertical position with gear (1) in up position until gear (1) has cooled.
4.
Apply coat of oil to bushing (4), all engine block bores (5), camshaft (3), and camshaft thrust support
(7) before installing camshaft (3) in engine block (8).
5.
Slowly rotate and install camshaft (3) through bushing (4) and engine block bores (5) until camshaft
gear (1) is in position to engage with crankshaft gear (6).
6.
Install camshaft thrust support (7) on camshaft (3), align and position timing marks on camshaft
gear (1) between timing mark on crankshaft gear (6), and push camshaft (3) into engine block (8).
300 F
(149 C)
3
1
2
OVEN
0158 00-6
