TM 5-1940-322-24
0158 00
CAMSHAFT, CAM GEAR, AND CAM BUSHING MAINTENANCE (Contd)
CLEANING AND INSPECTION
1.
For general cleaning and inspection instruction, refer to WP 0013 00.
WARNING
Skysol 100 solvent is combustible; DO NOT use or store near heat,
sparks, flame, or other ignition sources. Use mechanical ventilation
whenever product is used in a confined space, heated above
ambient temperatures, or agitated. Keep container sealed when not
in use.
Contact with Skysol 100 may cause skin irritation. Use chemical-
resistant gloves. In case of skin contact, remove any contaminated
clothing and wash skin thoroughly with soap and water. Wash
contaminated clothing before reuse. Eye contact may cause
irritation, tearing, or blurring of vision. Use face shield or goggles
when eye contact may occur. In case of eye contact, flush eyes with
large amounts of water for at least 15 minutes or until irritation
subsides. Inhalation may cause irritation to upper respiratory
passages. DO NOT have food or drink in the vicinity. Failure to
comply may result in injury to personnel.
2.
Measure camshaft bushing (1). Bushing (1) must be between 2.1302 in. (5.410 cm) minimum and
2.1317 in. (5.414 cm) maximum. If not within limits, bushing (1) must be replaced.
3.
Remove bushing (1) from engine block (2) using camshaft bushing tool.
NOTE
To inspect and measure all other camshaft bores, engine oil pan
must be removed. To access camshaft bores from under side of
engine block, refer to WP 0156 00 for removal of engine oil pan.
4.
Inspect camshaft bores (3) in engine block (2) for obvious damage and excessive wear.
5.
Measure all camshaft bores (3) starting with first camshaft bore (3) for bushing (1).
6.
Camshaft bore (3) for bushing (1) must be no more than 2.1317 in. (5.414 cm). Other camshaft
bores (3) must be no more than 2.1324 in. (5.416 cm). If camshaft bores (3) are not within limits,
engine block (2) must be machined and service bushings installed, or engine block (2) must be
replaced.
7.
If all camshaft bores (3) without bushings measure to within limits, new bushing (1) can be installed.
CAUTION
Do not apply sealing compound around area of oil hole or oil hole
may become plugged. Failure to comply may result in damage to
equipment.
8.
Apply primer to outside of bushing (1) and inside of camshaft bore (3) on engine block (2). Allow
primer to dry 3070 seconds before installing bushing (1).
9.
Apply bead of sealing compound around 270 of bushing (1) outer edge.
NOTE
Check that the oil holes in the bushing and engine block are
aligned before installing bushing. After installation, check that a
0.126-in. (3.2-mm) rod will be able to pass through both oil holes.
10.
Using camshaft bushing tool, install bushing (1) so that front edge of bushing (1) is even with front
face of engine block (2). Clean excess sealing compound from around bushing (1) and engine block (2).
0158 00-4
