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)

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Piston, Engine

GENERAL SPECIFICATIONS
Piston-to-Bore Clearance
Rebuild 0.020-0.040 mm (0.0008-0.0015 inch)
Service 0.020-0.070 mm (0.0008-0.0027 inch)
Piston Diameter 84.77-84.80 mm (3.3374-3.3386 inch)
Pin Bore Diameter 20.632-20.641 mm (0.8123-0.8126 inch)
Ring Groove Width
Compression (Top) 1.53-1.55 mm (0.0602-0.061 inch)
Compression (Bottom) 1.53-1.55 mm (0.0602-0.061 inch)
Oil 4.008-4.032 mm (0.1578-0.1587 inch)
Compression Ring (Top) to Ring Groove Clearance 0.04-0.08 mm (0.001-0.0032 inch)
Compression Ring (Bottom) to Ring Groove Clearance 0.06-0.09 mm (0.0023-0.0035 inch)
Squish Height 0.908-1.858 mm (0.036-0.073 inch)
Piston Pin Length 66.2-67.0 mm (2.606-2.638 inch)
Diameter Standard 20.622-20.631 mm (0.8119-0.8122 inch)
Pin to Piston Clearance 0.007-0.013 mm (0.0003-0.0005 inch)
Pin to Rod Clearance Press Fit - 8 kilonewton