16 ENGINE 147
304538-10
– Measure the piston at the piston skirt, at right angles to the piston pin, at a
distance B.
Guideline
Distance B 9 mm (0.35 in)
Piston - diameter 71.965… 71.977 mm (2.83326…
2.83373 in)
16.4.43 Checking the piston/cylinder mounting clearance (200 Duke)
305905-10
– Check/measure the cylinder. ( p. 145)
– Check/measure the piston. ( p. 146)
– The piston/cylinder mounting clearance is the result of the cylinder bore diameter
minus the piston diameter.
Guideline
Piston/cylinder - mounting clearance
New condition 0.039… 0.062 mm (0.00154…
0.00244 in)
Wear limit 0.08 mm (0.0031 in)
16.4.44 Checking the oil pump (200 Duke)
304531-10
– With special tool 1, check the play between the internal rotor and external rotor
and between the external rotor and the oil pump housing.
Feeler gauge (59029041100) ( p. 253)
Oil pump
Play between external rotor and
internal rotor
0.10… 0.20 mm (0.0039…
0.0079 in)
Oil pump
Play between external rotor and oil
pump housing
0.09… 0.20 mm (0.0035…
0.0079 in)
» If the play exceeds the specification:
– Change the oil pump and, if necessary, the oil pump housing.
304532-10
– Check axial play A of the oil pump.
Oil pump
Axial play 0.10… 0.25 mm (0.0039…
0.0098 in)
» If the play exceeds the specification:
– Change the oil pump and, if necessary, the oil pump housing.
16.4.45 Checking the oil pressure regulator valve (200 Duke)
304533-10
– Remove washer 1.
– Remove spring 2.
– Measure the length of spring 2.
Oil pressure regulator valve - minimum
spring length
26.00 mm (1.0236 in)
» If the measured length is less than the specification:
– Change the spring.
– Check control piston 3 for damage and wear.
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