Toyota 4-Runner 1985 Repair Manual page 85

EM-56
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ENGINE MECHANICAL - Cylinder Block
DISASSEMBLY OF PISTON AND CONNECTING
ROD ASSEMBLY
1. CHECK FIT BETWEEN PISTON AND PIN
Try to move the piston back and forth on the piston pin.
If any movement is felt, replace the piston and pin.
2.
REMOVE PISTON RINGS
Using a piston ring expander, remove the piston rings.
Keep the rings for each cylinder separated.
3. DISCONNECT CONNECTING ROD FROM PISTON
(a) Using needle-nose pliers, remove the snap rings from
the piston.
(b) Heat the piston in hot water to about 80°C (176°[
(c) Using a hammer and driver, tap the pin lightly to
remove the pin from the piston.
NOTE:
• The piston and pin are a matched set.
• Keep the piston, piston pin and rings and connecting rod
together for each cylinder.