Baja WD250U, Руководство по обслуживанию

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Clearance between piston ring and ring groove
Standard Limit
First 0.03~0.07mm 0.12mm
Ring (0.001~0.003 in) (0.005in)
Second 0.02~0.06mm 0.12mm
Ring (0.008~0.024in) (0.005in)
2) Measurement:
• Closed clearance of piston ring
• Install the piston ring to the cylinder, pull
forward about 20mm (0.8in), then pull the pis -
ton ring with piston top to make it vertical with
cylinder wall.
• Use feeler gauge (1)
If out of specification replace a set of ring
Closed clearance
Standard Limit
Piston 0.15~0.30mm 0.4mm
ring 1 (0.006~0.012in) (0.016in)
Piston 0.15~0.30mm 0.4mm
ring 2 (0.006~0.012in) (0.016in)
Oil ring 0.2~0.7mm
(0.008~0.028in)
CAUTON:
You cannot measure the closed clearance of
scraping plate of oil ring assy, if the clearance
of scraping plate is bigger, replace a set of oil
ring
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