Isuzu 4JA1 Workshop Manual page 120

6A – 98 ENGINE MECHANICAL
6. Piston Ring
1. Use a piston ring replacer to install the three piston
RTW36ASH002001
NOTE:
Install the compression rings with the stamped side
facing up.
Insert the expander coil into the oil ring groove so that
there is no gap on either side of the expander coil
before installing the oil ring.
2. Apply engine oil to the piston ring surfaces.
3. Check that the piston rings rotate smoothly in the
7. Connecting Rod Bearing
Carefully wipe any oil or other foreign material from the
connecting rod bearing back face and the connecting rod
bearing fitting surface.
015R100006
rings.
Piston Ring Replacer
Install the piston rings in the order shown in the
illustration.
1. Oil ring
2. 2nd compression ring
3. 1st compression ring
piston ring grooves