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TRANSMISSION-TORQUEFLITE
21 -87
OIL PUMP BODY
/
BOLT AND WASHER
REACTION SHAFT SUPPORT
Fig.
79-Front
Oil Pump and Reaction Shaft
Support
rings unless conditions warrant. Inspect the front
clutch piston retainer to reaction shaft support thrust
washer for wear. Washer thickness should be .043 to
.045 inch, replace if necessary. Inspect machined
sur-
faces on the oil pump body and reaction shaft sup-
port for nicks and burrs. Inspect the pump body and
reaction shaft support bushings for wear or scores.
Inspect the oil pump rotors for scoring or pitting.
With the rotors cleaned and installed in the pump
body, place a straight edge across face of the rotors
and pump body. Use a feeler gauge to measure the
clearance between the straight edge and face of the
rotors. Clearance limits are from .001 to .0025 inch.
Also, measure the rotor tip clearance between the
inner and outer rotor teeth. Clearance limits are from
.007 to .012 inch.
punch or similar tool (Fig. 81). A gentle tap at each
stake slot location will suffice.
(8) Using a narrow-bladed knife or similar tool, re-
move the high points or burrs around the staked area
(Fig. 81). Do not use a file or similar tool that will re-
move more metal than is necessary.
Reaction Shaft Bushing Replacement
In case of a reaction shaft bushing failure, always
inspect the support for wear from the input shaft
seal ring lands. If worn or grooved, replace the sup
TOOL HANDLE
SP-3549
REMOVING
HEAD
Front Pump Bushing Replacement
(1) Place the front pump housing (seal face down)
on a smooth firm surface.
(2)
Place the removing head, Tool SP-3551 in the
bushing and install the handle, Tool SP-3549 in the
removing head (Fig. 80).
(3) Drive the bushing straight down and out of the
pump housing bore. Be careful not to cock the tool
in the bore.
(4)
Position the new bushing on the installing head,
(5) With the pump housing on a smooth clean sur-
face, start the bushing and installing head in the
bushing bore. Install the handle, Tool SP-3549 in the
installing head (Fig. 80).
(6)
Drive the bushing into the housing until the
tool bottoms in the pump cavity. Be careful not to
cock the tool during installation.
INSTALLING
To01 SP-3624.
62x343A
(7) Stake the bushing in place by using a blunt
Fig. 8LReplacing
Front
Pump Bushing
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