Check oil pump end clearance End clearance is .0027
to .0053 in. (0.069 to 0.135 mm) new.
CHECKING END CLEARANCE
(Oil pump with plunger bypass shown)
Remove oil pump cover mounting bolts (1). Remove
oil pump corer (2).
(Oil pump with belleville washer bypass shown)
1. Bolts (four). 2. Oil pump cover.
Check oil pump rotor tip clearance. Rotor tip
clearance is .004 .002 in. (0.10 0.05 mm). Maximum
rotor tip clearance is .009 in. (0.23 mm).
Remove outer rotor (5) and inner rotor (3). Check size
of bearing (4). Size of bearing (4) is 2.8041 .0022 in.
(71.224 0.056 mm). Replace bearing if necessary. Use
an 8S2285 Driver (6) to install the bearing. For the
correct location of bearing junction, see the topic OIL
PUMP in the SPECIFICATIONS.
3. Inner rotor. 4. Bearing. 5. Outer rotor.
6. 8S2285 Driver.
Clean all parts thoroughly before installing. Oil all
component parts before installing. Install inner rotor (3),
outer rotor (5), cover (2), mounting bolts (1) and locks.
Tighten bolts to 18 5 lb. ft. (24 7 Nm) and secure