Suzuki 2000 Grand Vitara SQ625 Service Manual page 480

Piston Rings
To measure end gap, insert piston ring into cylinder bore and then
measure the gap by using thickness gauge.
If measured gap is out of specification, replace ring.
NOTE:
Clean carbon deposits and any other dirt from top of cylinder
bore before inserting piston ring.
Piston Pi t
ring end
gap ga
1. Cylinder block
2. Feeler gauge
3. Piston ring
4. 120 mm (4.72 in.)
Connecting Rod
D Big-end side clearance:
Check big-end of connecting rod for side clearance, with rod fitted
and connected to its crank pin in the normal manner. If measured
clearance is found to exceed its limit, replace connecting rod.
D Connecting rod alignment:
Mount connecting rod on aligner to check it for bow and twist. If
limit is exceeded, replace it.
Limit on bow: 0.05 mm (0.0020 in.)
Limit on twist: 0.10 mm (0.0039 in.)
Item
Top ring
2nd ring
Oil ring
Item
Big-end side
clearance
ENGINE MECHANICAL (J20 ENGINE) 6A4-61
Standard
0.20 – 0.35 mm
(0.0079 – 0.0137 in.)
0.35 – 0.50 mm
(0.0138 – 0.0196 in.)
0.20 – 0.70 mm
(0.0079 – 0.0275 in.)
Standard
0.25 – 0.40 mm
(0.0099 – 0.0157 in.)
Limit
0.7 mm
(0.0276 in.)
0.7 mm
(0.0276 in.)
1.8 mm
(0.0709 in.)
Limit
0.45 mm
(0.0177 in.)