Suzuki 2000 Grand Vitara SQ416, Service Manual

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YH4
GRAND
VITARA
ENGINE MECHANICAL (H25 ENGINE) 6A2-73
1. Cylinder block
2. Feeler gauge
3. Piston ring
4. 120 mm (4.72 in.)
Piston Rings
To measure end gap, insert piston ring into cylinder bore and then
measure the gap by using thickness gauge.
If measure gap is out of specification, replace ring.
NOTE:
Clean carbon and any other dirt from top of cylinder bore be-
fore inserting piston ring.
Item Standard Limit
Pi t
Top ring
0.20 – 0.35 mm
(0.0079 – 0.0137 in.)
0.7 mm
(0.0276 in.)
Piston
ring end
gap
2nd ring
0.35 – 0.50 mm
(0.0138 – 0.0196 in.)
0.7 mm
(0.0276 in.)
ga
Oil ring
0.20 – 0.70 mm
(0.0079 – 0.0275 in.)
1.8 mm
(0.0709 in.)
Connecting Rod
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.
Item Standard Limit
Big-end side
clearance 0.25 – 0.40 mm
(0.0099 – 0.0157 in.)
0.45 mm
(0.0177 in.)
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.)