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30/ENGINE - WORK ON INDIVIDUAL PARTS
Checking the piston/cylinder mounting clearance
19.27
–
Check/measure the cylinder. (
–
Check/measure the piston. (
–
The smallest piston/cylinder mounting clearance is the result of the smallest cylinder bore diameter minus the largest piston diam-
eter. The largest piston/cylinder mounting clearance is the result of the largest cylinder bore diameter minus the smallest piston
diameter.
Specification
Piston/cylinder - mounting clearance (450 XC ATV)
Size I
Size II
Wear limit
Piston/cylinder - mounting clearance (525 XC ATV)
Size I
Size II
Wear limit
Checking the oil pumps for wear
19.28
Info
An example of how to check the oil pumps for wear is shown in the figures here, but the method applies to all pumps.
P. 113)
P. 114)
–
Use feeler gauge
engine case.
Oil pump - clearance between external
rotor and engine housing
»
If the measured value does not equal the specified value:
–
Change the oil pump and, if necessary, the engine case.
600324-10
–
Use feeler gauge
internal rotor.
Oil pump - clearance between external
rotor and internal rotor
»
If the measured value does not equal the specified value:
–
Change the oil pump.
600325-10
0.054... 0.096 mm (0.00213... 0.00378 in)
0.056... 0.099 mm (0.0022... 0.0039 in)
0.120 mm (0.00472 in)
0.040... 0.080 mm (0.00157... 0.00315 in)
0.044... 0.085 mm (0.00173... 0.00335 in)
0.120 mm (0.00472 in)
to measure the clearance between the external rotor and the
≤ 0.20 mm (≤ 0.0079 in)
to measure the clearance between the external rotor and the
≤ 0.20 mm (≤ 0.0079 in)
115
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