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TM 10-4320-351-14
NOTE
Use care when removing oil pump cover. The rotor's position in the oil pump
cover are to be measured.
c.
Remove the oil pump cover (3) with inner rotor (4), outer rotor (5) and O-ring (6). Discard O-ring (6). Wipe rotors
(4 and 5) and cover (3) clean.
d.
Lay the oil pump cover (3) on a flat surface with the rotors (4 and 5) facing up. Measure the clearance (A)
between the outer rotor and the cover mating surface. The rotor must be 0.010-0.024 in. (0.27-0.60 mm) below
the mating edge of the oil pump cover. If measurement is out of tolerance, replace the rotor.
e.
Remove rotors (4 and 5) from oil pump cover (3). Make the following measurements for wear. If any
measurement is out of tolerance, replace the rotor(s).
(1) Measurement B (Inner Rotor Diameter): 1.167-1.172 in. (29.65-29.77 mm)
(2) Measurement C (Outer Rotor Diameter): 1.592-1.597 in. (40.45-40.58 mm)
(3) Measurement D (Outer Rotor Inside Diameter): 1.182-1.185 in. (30.03-30.1 mm)
(4) Measurement E (Rotor Thickness - Both Rotors): 0.704-0.706 in. (17.89-17.94 mm)
6.3.14 Remove Timing (Pulley End) Cover. (Refer to figure 6-14.)
This task consists of:
a. Removal
INITIAL SET-UP:
Tools:
Materials/Parts Required:
Key, Socket Head Screw, 6 mm
None
(Appendix B, Section III, Item 3)
Equipment Condition:
Flywheel and alternator stator removed
(para. 6.3.3)
a.
Remove crankcase breather hose (1).
b.
Remove the ten socket head cap screws (2) from engine timing cover (3).
c.
Remove timing cover (3) and gasket (4). Discard gasket(4). Remove gasket material residue from crankcase (5)
and timing cover (3).
d.
Remove rear engine oil seal (6) from timing cover. Discard seal (6).
6-25
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