Suzuki Engine 2002 GRAND VITARA SQ625, Service Manual

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ENGINE MECHANICAL (G16 ENGINE) 6A1-59
e) Remove cap and using a scale (2) on gaging plastic (1)
envelope, measure gaging plastic width at the widest point
(clearance).
If clearance exceeds its limit, use a new standard size bear-
ing and remeasure clearance.
Connecting rod bearing oil clearance
Standard : 0.020 – 0.050 mm (0.0008 – 0.0019 in.)
Limit : 0.080 mm (0.0031 in.)
f) If clearance can not be brought to within its limit even by
using a new standard size bearing, replace crankshaft or
regrind crankpin to undersize as follows.
– Install 0.25 mm (0.00984 in.) undersize bearing to connect-
ing rod big end.
– Measure bore diameter of connecting rod big end.
– Regrind crankpin to following finished diameter.
– Confirm that bearing clearance is within above standard
value.
ASSEMBLY
a) Each piston (5) has stamped number 1 or 2 (6) as shown. It
represents outer diameter of piston.
b) There are also stamped numbers of 1 and 2 (6) on the cyl-
inder block as shown. The first number represents inner
diameter of No.1 cylinder (1), the second number of No.2
cylinder (2), the third number of No.3 cylinder (3) and the
fourth number of No.4 cylinder (4).
Finished
crankpin dia.
=
Measured big end bore
dia. (including undersize
bearing)
–
0.035 mm
(0.0014 in.)
NOTE:
Two sizes of piston are available as standard size spare
part so as to ensure proper piston-to-cylinder clearance.
When installing a standard size piston, make sure to
match piston with cylinder as follows.
A. Crank pulley side
B. Flywheel side