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.) 3.4248-3.4253 inches
Piston Clearance 0.0008-0.0016 inches
Piston Pin Diameter 0.8659-0.8661 inches
Piston Pin To Piston Clearance 0.0050-0.0010 inches
Piston Ring End Gap:
Comp. [01]
Oil [02]

Piston Ring To Groove Clearance:
Top Ring 0.0014-0.0024 inches
Second Ring 0.0012-0.0022 inches

[01] -- Top ring, 0.008-0.014 inches; second ring, 0.016-0.022 inches.
[02] -- Teikoku ring, 0.008-0.020 inches; Riken ring, 0.008-0.028 inches.