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

Valve Spring

Valve spring free length 49.55 mm (1.9508 inch)
Valve spring squareness 2 degrees
Valve spring compression pressure 587.14 N @ 28.02 mm (131.994 lbs. @ 1.1032 inch)
Valve Spring Installed Height 39.7 - 40.3 mm (1.5630 - 1.5866 inch)
Valve Spring Installed Pressure - Valve Open 587.165 N @ 27.99 mm (132 lbs. @ 1.102 inch)
Valve Spring Installed Pressure - Valve Closed 244.652 N @ 39.98 mm (55 lbs. @ 1.574 inch)