Suzuki LT-F500F 2002, Service Manual

Page: 83 / 382

ENGINE 3-41
CONROD/CRANKSHAFT
CONROD SMALL END I.D.
Using a caliper gauge, measure the conrod small end inside
diameter.
%
Conrod small end I.D.
Service Limit: 23.040 mm (0.9071 in)
(
09900-20605: Dial calipers (10 – 34 mm)
09900-22403: Small bore gauge (18 – 35 mm)
If the conrod small end inside diameter exceeds the above men-
tioned limit, replace the conrod.
CONROD DEFLECTION
Wear on the big end of the conrod can be estimated by checking
the movement of the small end of the rod. This method can also
check the extent of wear on the conrod’s big end.
%
Conrod deflection
Service Limit: 3.0 mm (0.12 in)
(
09900-20701: Magnetic stand
09900-20607: Dial gauge (1/100 mm)
09900-21304: V-block
CONROD BIG END SIDE CLEARANCE
Push the big end of the conrod to one side and measure the
side clearance with a thickness gauge.
%
Conrod big end side clearance
Service Limit: 1.0 mm (0.039 in)
(
09900-20803: Thickness gauge
If the clearance exceeds the limit, replace the crankshaft assem-
bly with a new one or bring the deflection and the side clearance
within the service limit by replacing the worn parts (conrod, big
end bearing, crank pin, etc.) with new ones.
CRANKSHAFT RUNOUT
Support the crankshaft with “V” blocks as shown, with the two
end journals resting on the blocks.
Position the dial gauge, as shown, and rotate the crankshaft
slowly to read the runout.
Correct or replace the crankshaft if the runout is greater than the
limit.
%
Crankshaft runout
Service Limit: 0.050 mm (0.0019 in) at
A
0.080 mm (0.0031 in) at
B
(
09900-20607: Dial gauge (1/100 mm)
09900-20701: Magnetic stand
09910-21304: V-block set (100 mm)