TM-5-4310-389-14
4-6 LOWER CRANKCASE (TIMING BELT).
DESCRIPTION
This task covers: Repair.
INITIAL SETUP
Tools:
Equipment conditions:
General Mechanic Tool Kit
System bled of pressure
(paragraph 2-3).
Materials/parts:
Equipment secured (paragraph 2-11).
Cloth, Lint-free, item 9 Appendix E
Battery disconnected.
Detergent, item 13 Appendix E
Water, item 32 Appendix E
Oil Pump Timing Belt Replacement.
a. Disassembly.
1.
Remove the crankcase cover and belt tensioner. (Refer to paragraphs 3-17 and 3-18.)
2.
Remove 4th stage head (refer to paragraph 4-8).
3.
Remove the top (crankshaft) belt pulley from the crankshaft and remove the pulley and belt at the same
time (shaft is 0-ring sealed so there will be some resistance).
4.
Bring the 4th stage piston to top dead center (TDC).
5.
Turn the lower belt pulley clockwise until the greatest resistance is felt (cam at its highest point on the oil
pump roller).
6.
Note the position of the holes in the crankshaft and the holes in the belt pulley and place the belt over the
lower pulley and on the crankshaft at the same time.
NOTE
Ensure that the 4th stage piston is at TDC and the camshaft is at its highest resistance.
4-20
