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

DIMENSIONS
Piston Diameter:
Standard 79.48 mm (3.1315 inch)
1st Oversize 79.72 mm (3.1410 inch)
2nd Oversize 79.98 mm (3.1512 inch)

Piston Ring Groove Clearance:
New:
1st Compression Ring 0.06-0.09 (0.0024-0.0036 inch)
2nd Compression Ring 0.05-0.08 (0.0020-0.0032 inch)
Oil Scraper Ring 0.03-0.06 (0.0012-0.0024 inch)
Wear Limit:
1st Compression Ring 0.25 (0.0098 inch)
2nd Compression Ring 0.25 (0.0098 inch)
Oil Scraper Ring 0.15 (0.0059 inch)