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

Ring Gap Compression Rings Minimum 0.010 Inch (in)
Maximum 0.020 Inch (in)
Oil Control (Steel Rails) Minimum 0.010 Inch (in)
Maximum 0.050 Inch (in)
Ring Side Clearance Compression Rings Minimum 0.0015 Inch (in)
Maximum 0.0030 Inch (in)
Oil Control (Steel Rails) Maximum 0.002 Inch (in)
Maximum 0.008 Inch (in)
Ring Width Compression Rings Minimum 0.0776 Inch (in)
Maximum 0.0783 Inch (in)
Oil Control (Steel Rails) Minimum 0.1515 Inch (in)
Maximum 0.1565 Inch (in)