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.) 3.4430-3.4440 [01]
Piston Clearance 0.0010-0.0020
Piston Ring End Gap (Minimum)
Compression
Top 0.0100-0.0200
2nd 0.0110-0.0210
Oil 0.0150-0.0550
Piston Ring Side Clearance
Compression
Top 0.0015-0.0031
2nd 0.0015-0.0037
Oil 0.0080 [02]
All measurements given in inches, unless otherwise specified.

[01] -- Measured at right angle to piston pin, 1.87 inches from top of piston.
[02] -- Maximum.