1 or 2
Piston
No.1 Cylinder
No.2 Cylinder
No.3 Cylinder
No.4 Cylinder
Crank
pulley
side
Flywheel
side
6A1-60 ENGINE MECHANICAL (G13B, 1-CAM 16-VALVES ENGINE)
5) Remove cap and using a scale (2) on gaging plastic (1) enve-
lope, measure gaging plastic width at the widest point (clear-
ance).
If clearance exceeds its limit, use a new standard size bearing
and remeasure clearance.
Item
Standard Limit
Bearing
clearance
0.020 – 0.050 mm
(0.0008 – 0.0019 in.)
0.080 mm
(0.0031 in.)
6) If clearance can not be brought to within its limit even by using
a new standard size bearing, regrind crankpin to undersize
and use 0.25 mm undersize bearing.
ASSEMBLY
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) Each piston has stamped number 1 or 2 as shown. It represents
outer diameter of piston.
b) There are also stamped numbers of 1 and 2 on the cylinder block
as shown. The first number represents inner diameter of No.1
cylinder, the second number of No.2 cylinder, the third number
of No.3 cylinder and the fourth number of No.4 cylinder.
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