Isuzu 1999 RODEO Workshop Manual page 1163

6A–78 ENGINE MECHANICAL (6VD1 3.2L)
The size mark (1) for piston outside diameter is
represented as shown in Figure.
Outside Diameter
Size Mark A : 93.360 mm–93.370 mm
(3.6756 in–3.6760 in)
Size Mark B : 93.371 mm–93.380 mm
(3.6760 in–3.6764 in)
Size Mark C : 93.381 mm–93.390 mm
(3.6764 in–3.6768 in)
Measure the cylinder bore inside diameter (refer to
"Cylinder Block" in this manual).
015RV014
Piston Rings (8)
Any worn or damaged part discovered during engine
overhaul must be replaced with a new one.
1. Ring end gap measurement
f Insert the piston ring into the bore.
f Push the ring by the piston, at a right angle to the
wall, into the point at which the cylinder bore
diameter is the smallest.
f Measure the ring end gap.
Compression Ring
1st ring
Standard:
Limit:
2nd ring
Standard:
Limit:
Oil ring
Standard:
Limit:
015RS025
0.300 mm–0.400 mm
(0.0118 in–0.0157 in)
1.0 mm (0.0394 in)
0.450 mm–0.600 mm
(0.0177 in–0.0236 in)
1.2 mm (0.0472 in)
0.150 mm–0.450 mm
(0.0059 in–0.0177 in)
1.05 mm (0.0413 in)
012RS002