Suzuki 2000 Grand Vitara SQ625 Service Manual page 298

6A1-56 ENGINE MECHANICAL (G16 ENGINE)
1. 50 mm (1.96 in.)
2. 95 mm (3.74 in.)
INSPECTION
Cylinders
D Inspect cylinder walls for scratches, roughness, or ridges which
indicate excessive wear. If cylinder bore is very rough or deeply
scratched, or ridged, rebore cylinder and use oversize piston.
D Using a cylinder gauge, measure cylinder bore in thrust and axial
directions at two positions as shown in figure.
If any of following conditions is noted, rebore cylinder.
1) Cylinder bore dia. exceeds limit.
2) Difference of measurements at two positions exceeds taper
3) Difference between thrust and axial measurements exceeds
Pistons
D Inspect piston for faults, cracks or other damaged.
Damaged or faulty piston should be replaced.
D Piston diameter:
As indicated in figure, piston diameter should be measured at a
position 23 mm (0.91 in.) from piston skirt end in the direction per-
pendicular to piston pin.
Piston
diameter
1. 23 mm (0.91 in.)
limit.
out-of-round limit.
Cylinder bore dia. limit: 75.15 mm (2.9586 in.)
Taper and out-of-round limit: 0.10 mm (0.0039 in.)
NOTE:
If any one of four cylinders has to be rebored, rebore all
four to the same next oversize. This is necessary for the
sake of uniformity and balance.
Standard
Oversize:
0.25 mm
(0.0098 in.)
0.50 mm
(0.0196 in.)
74.970 – 94.990 mm
(2.9516 – 2.9523 in.)
75.220 – 75.230 mm
(2.9614 – 2.9618 in.)
75.470 –75.480 mm
(2.9712 – 2.9716 in.)