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 (N @ Spec. Length) 667.3 N @ 28.02 mm
Exhaust (N @ Spec. Length) 667.3 N @ 28.02 mm
Valve spring free length
Intake 50.2 mm
Exhaust 50.2 mm
Valve spring installed pressure (N @ Spec. Length)
Intake 289.1 N @ 40.01 mm
Exhaust 289.1 N @ 40.01 mm
Valve springs installed pressure (N @ Spec. Length - Service Limit)
Intake 274.6 mm @ 40.01 mm
Exhaust 274.6 mm @ 40.01 mm
Valve springs - out of square limit
Intake 2.5 degrees
Exhaust 2.5 degrees