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 Ring, Engine

Piston
Ring groove width
Top
Standard or New 1.23 - 1.24 mm (0.048 - 0.049 inch)
Service Limit 1.26 mm (0.050 inch)
Second
Standard or New 1.22 - 1.23 mm (0.047 - 0.048 inch)
Service Limit 1.25 mm (0.049 inch)
Oil
Standard or New 2.005 - 2.020 mm (0.0789 - 0.0795 inch)
Service Limit 2.05 mm (0.081 inch)

Piston ring
Ring-to-groove clearance
Top
Standard or New 0.045 - 0.070 mm (0.0018 - 0.0028 inch)
Service Limit 0.13 mm (0.005 inch)
Second
Standard or New 0.035 - 0.060 mm (0.0014 - 0.0024 inch)
Service Limit 0.13 mm (0.005 inch)
Rind end gap
Top
Standard or New 0.20 - 0.35 mm (0.008 - 0.014 inch)
Service Limit 0.60 mm (0.024 inch)
Second
Standard or New 0.40 - 0.55 mm (0.016 - 0.022 inch)
Service Limit 0.70 mm (0.028 inch)
Oil
Standard or New 0.20 - 0.70 mm (0.008 - 0.028 inch)
Service Limit 0.80 mm (0.031 inch)