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, Engine

Diameter
Measured at 31.5 mm from top of block. Measured at 43 mm from top of piston , at 90 degrees to the piston pin.
0.0010
Coded Red 1 3.55 - 3.551
Coded Blue 2 3.55 - 3.551
Coded Yellow 3 3.551 - 3.552
Coated Piston-to-Bore Clearance -0.002/+0.001
Pin Bore Diameter
If applicable, measured vertically, +0.030 - 0.050 mm (0.001 - 0.002 inch) measured horizontally (oval pin bore) iSpecification in 90.200 mm diameter gauge.
0.866 - 0.867
Ring Groove Width Compression (Top) 0.06 - 0.061
Compression (Bottom) 0.06 - 0.061
Oil Ring 0.12 - 0.12