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

Piston Production STD (J or JT) OD (1 - 6) 14.0498 - 4.0505 Inch (in)
Production STD (J or JT) OD (7 - 8) 4.0498 - 4.0505 Inch (in)
Production O.S. (S or ST) OD (1 - 6) 4.0554 - 4.0561 Inch (in)
Production O.S. (S or ST) OD (7 - 8) 4.0554 - 4.0561 Inch (in)
Service STD (JT) OD (1 - 6) 4.0498 - 4.0505 Inch (in)
Service STD (JT) OD (7 - 8) 4.0498 - 4.0505 Inch (in)
Service Hi Limit (GT) OD (1 - 6) 4.0513 - 4.0520 Inch (in)
Service Hi Limit (GT) OD (7 - 8) 4.0513 - 4.0520 Inch (in)
Service OS (0.50 OST) OD (1 - 6) 4.0708 - 4.0715 Inch (in)
Service OS (0.50 OST) OD (7 - 8) 4.0708 - 4.0715 Inch (in)
Cylinder Bore Clearance (1 - 6) 0.0035 - 0.0049 Inch (in)
Cylinder Bore Clearance (7 - 8) 0.0040 - 0.0054 Inch (in)
Protrusion 0.0035 - 0.0122 Inch (in)
Pin OD (Green) 1.2203 - 1.2204 inch
OD (Orange) 1.2204 - 1.2205 inch
Bore ID (Green) 1.2208 - 1.2209 inch
Bore ID (Orange) 1.2209 - 1.2210 inch
Bore Clearance 0.0004 - 0.0006 inch