Piston Ring: Service and Repair

(Piston removed)





Remove piston rings with a piston-ring compressing pliers.

Note: It might not be possible to find the identification on used piston rings.

Put aside piston rings in correct sequence and installation position.
New pistons may only be installed together with new piston rings.





Installation:
Insert piston rings with the word "TOP" facing piston crown.
1. Plain compression ring
2. Stepped taper-face ring "TOP"
3. Disk ring with support spring
Arrange piston ring contact points with offset of approx. 120° to one another, but not over piston pin eye.





Measuring end float, refer to Engine, Specifications





Measuring contact clearance, refer to Engine, Specifications