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


Piston Specifications
Standard Diameter:

Piston Marked C 80.980-80.990 mm
Piston Marked D 80.990-81.000 mm
Piston Marked E 81.000-81.010 mm

Piston Running Clearance (EXAMPLE)

Measured Cylinder Diameter 81.015 mm
Measured Piston Diameter 80.995 mm
The Piston Running Clearance is 0.020 mm

THE PISTON RUNNING CLEARANCE MUST BE 0.010 - 0.030 mm