Suzuki SY413 Service Manual page 4750

62G00-6A3-83-1S
62G00-6A3-83-3S
5) Remove lower crankcase and using scale on gaging plastic envel-
op, measure gaging plastic width at its widest point. If clearance ex-
ceeds its limit, replace bearing. Always replace both upper and
lower inserts as a unit.
A new standard bearing may produce proper clearance. If not, it will
be necessary to regrind crankshaft journal for use of 0.25 mm un-
dersize bearing.
After selecting new bearing, recheck clearance.
Bearing Clearance
62G00-6A3-233S
1. Gaging plastic
2. Scale
Selection of main bearings
STANDARD BEARING:
If bearing is in malcondition, or bearing clearance is out of specifica-
tion, select a new standard bearing according to following procedure
and install it.
1) First check journal diameter. As shown in figure, crank web No.2
has stamped numbers.
Three kinds of numbers ("1", "2" and "3") represent following journal
diameters.
Stamped numbers on crank web No.2 represent journal diameters
marked with an arrow in figure respectivery.
For example, stamped number "1" indicates that corresponding
62G00-6A3-234S
journal diameter is 57.994 – 58.000 mm.
1. Crankshaft pulley side
2. Flywheel side
3. Crankshaft web No.2
Standard: 0.032 – 0.052 mm (0.0013 – 0.0020 in.)
Limit: 0.060 mm (0.0023 in.)
Stamped numbers
1
2
3
ENGINE MECHANICAL 6A3-83
Journal diameter
57.994 – 58.000 mm
(2.2832 – 2.2834 in.)
57.988 – 57.994 mm
(2.2830 – 2.2832 in.)
57.982 – 57.988 mm
(2.2828 – 2.2829 in.)