Suzuki WagonR+ RB310 Service Manual page 1915

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:
Decarbon and clean top of cylinder bore before inserting pis-
ton ring.
Piston
Piston
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.
Big-end side
clearance
D Connecting rod alignment:
Mount connecting rod on aligner to check it for bow and twist and,
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 Standard
0.15 – 0.30 mm
Top ring
(0.0059 – 0.0118 in.)
0.2 – 0.35 mm
2nd ring
(0.0079 – 0.0138 in.)
0.2 – 0.6 mm
Oil ring
(0.0079 – 0.0236 in.)
Item Standard
0.10 – 0.20 mm
(0.0039 – 0.0078 in.)
ENGINE MECHANICAL 6A-53
Limit
0.7 mm
(0.0275 in.)
0.7 mm
(0.0275 in.)
1.8 mm
(0.0709 in.)
Limit
0.35 mm
(0.0137 in.)