Operation CHARM: Car repair manuals for everyone.

Piston Ring: Testing and Inspection



Piston ring gap, checking






Special tools

- Feeler gauges

- Squarely push down on piston ring from above to approx. 15 mm from lower end of cylinder bore.

Piston Ring Gap Specifications:






Ring to groove clearance, checking






Special tools

- Feeler gauges

- Clean groove before check.

Piston Ring Clearance Specifications: