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)

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Valve Spring

Valve spring compression pressure - intake 667.3 at 28.02 Newton At Millimeter (N @ mm)
Valve spring compression pressure - exhaust 667.3 at 28.02 Newton At Millimeter (N @ mm)
Valve spring free length - intake 1.9764 Inch (in)
Valve spring free length - exhaust 1.9764 Inch (in)
Valve spring installed pressure - intake 289.1 at 40.01 Newton At Millimeter (N @ mm)
Valve spring installed pressure - exhaust 289.1 at 40.0 Newton At Millimeter (N @ mm)
Valve spring installed pressure service limit - intake 274.6 at 40.01 Newton At Millimeter (N @ mm)
Valve spring installed pressure service limit - exhaust 274.6 at 40.01 Newton At Millimeter (N @ mm)
Valve spring out of square limit - intake 2.5 Degrees (deg)
Valve spring out of square limit - exhaust 2.5 Degrees (deg)