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

Pistons, Pins and Rings

Piston Diameter (Std.) 2.9716-2.9724
Piston Clearance 0.0008-0.0016
Piston Ring End Gap (Minimum)
Compression
Top 0.0079-0.0157
2nd 0.0079-0.0138
Oil 0.0079-0.0276
Piston Ring Side Clearance
Compression
Top 0.0012-0.0028
2nd 0.0008-0.0024

All measurements given in inches, unless otherwise specified.