Mitsubishi Heavy Industries S4S, Service Manual

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DISASSEMBLY OF BASIC ENGINE
5-15
4.4 Removing piston ring
Remove the piston rings using piston ring pliers.
Removing piston ring
4.5 Removing piston pin and piston
(1)
Using ring pliers, remove the snap ring.
(2)
Using a wooden block and mallet, remove the piston
pin, and separate the piston from the connecting rod.
Note: (a) Do not tap the piston pin directly with a mallet.
(b) If the piston is stubborn, heat the piston with a
piston heater or in hot water.
Removing piston pin
4.6 Removing main bearing cap
(1)
Unscrew the main bearing cap bolts.
(2)
Remove the main bearing cap.
Note: (a) Be careful not to damage the main bearings.
(b) Mark the bearings for their cylinder numbers.
Removing main bearing cap
Piston ring pliers
P/N:31391-12900
Snap ring pliers