Piston Ring: Service and Repair

INSTALLING PISTON RINGS TO PISTONS
^ Use the piston ring clamp (special tool) to fit the rings as shown. The lower compression ring must be fitted with the side marked TOP uppermost.








^ Oil the piston and rings before assembly. Position the compression rings so that the gaps are at approximately 180° to each other, each positioned above one of the gudgeon pin holes. Also make sure that the gaps in the top and bottom pieces of the three-piece oil scraper ring are staggered round the piston, and not in line with one another.