Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Piston Ring, Engine

NOTE: All specifications are in inches, unless specified otherwise.

Piston Diameter 3.3850-3.3854
Piston Clearance .0004-.0012

Piston Ring End Gap:
Compression:
Top .0080-.0390
Second .0138-.0390
Oil .0079-0236

Piston Ring Side Clearance:
Compression:
Top .0018-.0080
Second .0012-.0080
Oil --