TM 10-4320-307-24
4-15
CAMSHAFT ASSEMBLY INSPECT/REPAIR/REPLACE (CONT).
REMOVAL:
Use care when removing camshaft to avoid
damaging camshaft bushings.
1.
Install four camshaft pilots (1) over outer base circle of
valve lobes (2) between camshaft journals (3), using
rubber bands to secure in place.
NOTE
The rubber band must straddle valve lobe.
2.
Use one hand to slowly rotate and pull camshaft
assembly (4) from cylinder block (5) and other hand to
balance camshaft as it is removed.
CAUTION
Do not lay camshaft In a horizontal position.
Avoid warping camshaft by securely supporting
it in a vertical attitude.
3.
Remove thrust washer (6) from camshaft assembly (4).
4.
Remove camshaft pilots (1).
CLEANING/INSPECTION:
Dry cleaning solvent is potentially dangerous. Avoid repeated and prolonged breathing of
vapors and skin contact with the liquid. Do not use near open flame, arcing equipment, or other
Ignition source. Always wear eye protection and protective clothing.
Death or serious injury could occur if compressed air Is directed against the skin. Do not use
compressed air for cleaning or drying unless the pressure is/has been reduced to 30 psi (2.11
kgcm2) or less. When working with compressed air always use chip guards, eye protection, and
other personal protective equipment.
1.
Clean all parts of camshaft assembly and camshaft bushings in engine block, with dry cleaning solvent. Run a wire
brush through cam shaft oil passages.
2.
Dry all parts with compressed air, and blow out camshaft oil passages.
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