Piston Ring: Testing and Inspection

END GAP
1. Using a piston, push a new ring into the cylinder bore 15 - 20 mm (0.6 - 0.8 inch) from the bottom.
2. Measure the piston ring end-gap with a feeler gauge:
- If the gap is too small, check to see if you have the proper rings for your engine.
- If the gap is too large, recheck the cylinder bore diameter against the wear limits. If the bore is over the service limit, the cylinder block must be rebored.





RING TO GROOVE CLEARANCE
After installing a new set of rings, measure the ring-to-groove clearances. Refer to image for specifications.