Suzuki 2000 Grand Vitara SQ416, Service Manual

Page: 399 / 729

YH4
GRAND
VITARA
ENGINE MECHANICAL (H25 ENGINE) 6A2-75
1. Gaging plastic
2. Scale
Finished
crank pin dia.
=
Measured big end bore
dia. (including under-
size bearing)
0.054 mm
(0.0021 in.)
–
5) Remove cap and using a scale on gaging plastic envelope,
measure gaging plastic width at the widest point (clearance).
If clearance exceeds its limit, use a new standard size bearing
and remeasure clearance.
Item Standard Limit
Bearing
clearance 0.045 – 0.063 mm
(0.0018 – 0.0025 in.)
0.08 mm
(0.0031 in.)
6) If clearance can not be brought to within its limit even by using
a new standard size bearing, regrind crank pin to undersize as
follows.
a) Install 0.25 mm undersize bearing to connecting rod big
end.
b) Measure bore diameter of connecting rod big end.
c) Regrind crank pin to following finished diameter:
d) Confirm that bearing clearance is within above standard
value.