2-38
9
）
Remove the piston rings from the piston. Check the piston rings for wear and
elasticity. Measure the opening gap of the rings with a feeler gauge. If it is
beyond the limit, replace the piston ring as a set.
(Limit value: Ring
Ⅰ&Ⅱ:
0.5mm
O-ring: 1.2mm)
Measure the diameter of piston skirt at the position which is 10mm away from
the bottom. If it is beyond the limit, replace the piston.
Service limit:
＜
Φ
63.3mm
10
）
Measure the width of piston groove and diameter of piston skirt. If it is
beyond the limit, replace the piston.
Limit value of the ring: 0.85mm
