13.4 Piston
13.4.1 Removal
Remove piston pin retainer.
* Attention: Please do not drop the retainer into crankcase
during removal.
Take out piston pin and remove piston.
Remove piston ring.
Inspect piston, piston pin and piston ring.
* Attention: Please do not break or hurt piston ring.
Remove deposited carbon inside the piston ring.
Install the piston ring.
Measure the clearance between piston ring and piston ring
groove.
Allowable limit: Top ring: 0.09mm.
Second ring: 0.09mm.
Remove piston ring and install all the piston rings onto bottom
of cylinder.
* Attention：Compress piston rings into the cylinder with
piston head.
Measure the joint clearance between piston rings.
Allowable limit: 0.5mm.
Piston pin ring, piston pin
Testing gauge
Piston
Push
Piston ring
Testing gauge
Piston ring
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