Clearance between piston ring and ring groove
First ring
Second
ring
2)Measurement
.Closed clearance of piston ring
.Install the piston ring to the cylinder,pull for-
¡ý
ward about 20mm(0.8 in),then pull the piston
20mm(0.8 in)
ring with piston top to make it vertical with cyl-
¡ü
inder wall.
.Use feeler gauge ¢Ù
If out of specification replace a set of ring
Piston
ring 1
Piston
ring 2
Oil ring
Caution
You cannot measure the closed clearance of
scraping place of oil ring assy,if the clearance
of scraping plate is bigger,replace a set of oil
ring
Standard
0.03-0.07mm
(0.001-0.003 in)
0.02-0.06mm
ring (0.008-0.024 in)
close clearance
Standard
0.25mm
0.35mm
0.25mm
0.35mm
0.4mm
0.7mm
Limit
0.12mm
(0.005 in)
0.12mm
(0.005 in)
Limit
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