Page 224
REPAIR INSTRUCTIONS, PART 1
WRIST PIN BUSHING REPLACEMENT
If the wrist pin bushing is found to be out of
tolerance, it should be replaced.
Refer to Figure 231.
To replace the bushing:
1. Position the rod in a press with the piston pin
bushing remover/installer J 37717 inserted
into the wrist pin bushing.
2. Press the bushing out of the rod.
Use care not to twist or bend the connecting rod
while pressing the bushing.
231
Figure 231 — Wrist Pin Bushing Removal
Wrist Pin Bushing Installation
The wrist pin bushing has a lubrication hole
through it. This hole MUST be aligned with the
rifle-drilled hole in the rod to allow oil flow to the
wrist pin. If the holes are not aligned, wrist pin,
piston, and connecting rod failure will result.
1. Position the connecting rod, a new wrist pin
bushing and bushing remover/installer
J 37717 in a press.
2. Align the hole in the bushing with the
rifle-drilled hole in the rod and press the
bushing into the rod wrist pin bore.
3. Remove the bushing remover/installer and
reposition the rod assembly in the press with
the wrist pin bushing burnishing broach
J 37718 (Figure 232).
232
Figure 232 — Burnishing Wrist Pin Bushing
5-111.bk Page 224 Monday, July 10, 2006 2:26 PM
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