Piston Ring; Check The Inside Diameter Of Piston Pin Hole; Clearance Between Piston Ring And Ring Groove; Check Clearance Between Piston Ring And Ring Groove - Kipor KM2V80 Manual

Picture 42 Check the inside diameter of piston pin hole

3.2 Piston ring

(1) Use special tools to assemble or disassemble piston ring, don't separate piston ring too hard.
(2) Clear up the gathered carton in the ring groove; use thickness gauge or depth gauge to
measure the clearance between piston ring and ring groove. If the measured value exceeds the
limitation value, please replace piston ring or piston. If the clearance is too big, air leakage will
be caused, and then result in leakage of lube oil. Refer to picture 43.
Table 14 Clearance between piston ring and ring groove
Model
Item
Height of ring groove and
thickness of the 1
Height of ring groove and
thickness of the 2
Height of ring groove and
thickness of the 3
Picture 43 Check clearance between piston ring and ring groove
(3) Assemble piston ring to damage parts of cylinder cover, measure piston ring gap clearance
with thickness gauge. If the measured value exceeds the limitation value, replace piston ring or
cylinder cover. Refer to picture 44
Table 15 Gap clearance of piston ring
Model
Item
KM2V80
Standard
0.05～
st
ring 0.08
0.03～
nd
ring 0.06
0.02～
rd ring 0.065
KM2V80
Standard
Service
limitation
0.15
0.15
0.15