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 compression pressure-intake 633.3-701.3N @ 28.02 mm (1.103146 inch)
Valve spring compression pressure-exhaust 633.3-701.3N @ 28.02 mm (1.103146 inch)
Valve spring free length-intake 50.2 mm (1.976372 inch)
Valve spring free length-exhaust 50.2 mm (1.976372 inch)
Valve spring installed pressure-intake 272.1 -306.1 N (at 40.0 mm (1.574803 inch)
Valve spring installed pressure-exhaust 272.1 -306.1 N (at 40.0 mm (1.574803 inch)
Valve spring installed pressure service limit-intake 274.6N @ 40.01 mm (1.575192 inch)
Valve spring installed pressure service limit-exhaust 274.6N @ 40-01 mm (1.575192 inch)
Valve spring out-of-square limit-intake 2.5 degrees
Valve spring out-of-square limit-exhaust 2.5 degrees