Operation CHARM: Car repair manuals for everyone.

Ring to Groove Clearance


1. NOTE: If lower lands have high steps, piston should be replaced.





Check ring-side clearance of compression rings with Feeler Gauge Set 303-D027 (D81L-4201-A) or equivalent inserted between ring and its lower land. Gauge should slide freely around entire ring circumference without binding. Any wear that occurs will form a step at inner portion of lower land.