Isuzu 1999 RODEO Workshop Manual page 564

Piston Pin (9)
NOTE: Do not reuse the old piston pin.
1. Use a micrometer to measure the new piston pin
outside diameter in both directions at three different
positions.
2. Measure the inside diameter of the connecting rod
small end. If the fitting interference between the small
end and pin does not conform to the specified value,
the connecting rod must be replaced.
Standard : 0.02 mm–0.041 mm
(0.0008 in–0.0016 in)
3. Insert the new pin into the piston and rotate it. If the
pin rotates smoothly with no backlash, the clearance
is normal. If there is backlash or roughness, measure
the clearance. If the clearance exceeds the specified
limit, the piston must be replaced.
Clearance
Standard : 0.011 mm–0.014 mm
(0.0004 in.–0.0005 in)
ENGINE MECHANICAL (X22SE 2.2L)
Connecting Rods (11)
1. Measure the oil clearance between the connecting
rod and the crankshaft.
1. Remove the connecting rod cap nuts and the rod
caps (12).
Arrange the removed rod caps in the cylinder
number order.
2. Clean the rod bearings and the crankshaft pins.
3. Carefully check the rod bearings. If even one
bearing is found to be damaged or badly worn, the
entire bearing assembly must be replaced as a
set. Reinstall the bearings in their original
positions. Apply plastigage to the crank pin.
4. Reinstall the rod caps (12) to their original
positions.
Tighten the rod cap nuts.
1st step: 35 N·m (26 lb ft)
2nd step: 45°
3rd step: 15°
NOTE: Do not allow the crankshaft to rotate.
5. Remove the rod caps.
6. Measure the width of the plastigage and
determine the oil clearance. If the oil clearance
exceeds the limit, replace the rod bearing as a
set.
Standard : 0.006 mm–0.031 mm
(0.0002 in–0.0012 in)
Limit : 0.12 mm (0.0047 in)
014RW077
7. Clean the plastigage from the bearings and the
crankshaft pins.
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