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

Production STD (J or JT) OD (1-6) 4.0529 - 4.0536
Production STD (J or JT) OD (7-8) 4.0529 - 4.0536
Production O.S. (S or ST) OD (1-6) 4.0585 - 4.0592
Production O.S. (S or ST) OD (7-8) 4.0585 - 4.0592
Service STD (JT) OD (1-6) 4.0529 - 4.0536
Service STD (JT) OD (7-8) 4.0529 - 4.0536
Service Hi Limit (GT) OD (1-6) 4.0544 - 4.0551
Service Hi Limit (GT) OD (7-8) 4.0544 - 4.0551
Service OS (0.50 OST) OD (1-6) 4.0739 - 4.0746
Service OS (0.50 OST) OD (7-8) 4.0739 - 4.0746
Out-of-Round (maximum) 0.0008
Taper (maximum) 0.0008
Pin Bore ID (Green) 1.2208 - 1.2209
Pin Bore ID (Orange) 1.2209 - 1.2210