Suzuki Wagon R Manual page 3891

6A4-64 ENGINE MECHANICAL (Z10XEP AND Z12XEP ENGINES)
Piston Rings
Piston ring end gap
To measure end gap, insert piston ring (1) into cylinder bore and
then measure the gap by using thickness gauge (2).
If measured gap is out of specification, replace ring.
NOTE:
Decarbonize and clean top of cylinder bore before insert-
ing piston ring.
Piston ring end gap
For Z10XEP engine:
Item
Top ring 0.30 – 0.45 mm (0.0119 – 0.0177 in.)
2nd ring 0.30 – 0.50 mm (0.0119 – 0.0196 in.)
Oil ring 0.25 – 0.75 mm (0.00985 – 0.0295 in.)
For Z12XEP engine:
Item
Top ring 0.20 – 0.40 mm (0.0078 – 0.0157 in.)
2nd ring
Oil ring 0.40 – 1.40 mm (0.0157 – 0.0551 in.)
Piston and related parts specifications (for reference)
Piston projection:
Z10XEP engine: –0.55 mm (–0.0217 in.)
Z12XEP engine: 0 mm (0 in.)
Piston ring height:
Engine Item
Z10XEP Top ring
2nd ring
Oil ring
Z12XEP Top ring
2nd ring
Oil ring
Specification
Specification
Specification
1.17 – 1.19 mm
(0.0461 – 0.0468 in.)
1.84 – 1.98 mm
(0.0725 – 0.0779 in.)
1.20 mm (0.0472 in.)
1.50 mm (0.0591 in.)
2.00 mm (0.0787 in.)