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: Specifications

Piston Diameter @ 42 mm ((1.6353 in) Below Crown with Piston Skirt Coating 90.967-90.990 mm (3.5814-3.5823 in)
Piston Pin Bore Diameter 24.002-24.009 mm (0.9450-0.9452 in)
Piston Ring Groove Inside Diameter
First Compression Ring 82.520-82.770 mm (3.2488-3.2587 in)
Second Compression Ring 81.660-81.910 mm (3.2150-3.2248 in)
Oil Control Ring 84.210-84.460 mm (3.3153-3.3252 in)