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 logical successor to CHARM, I recommend you try it!

Link: lemon-manuals.la

Valve Spring

Valve spring free length 50.7 mm
Valve spring squareness 1.2 mm
Valve spring compression pressure (valve open, without damper) 1000 N (224 lbs) @ 29.2 mm ( 1.16 inch)
Valve spring compression pressure (valve closed, without damper) 350 N (79 lbs) @ 40.7 mm (1.62 inch)
Valve spring installed height 40.7 mm (1.62 inch)
Valve spring installed pressure 350 N (79 lbs) @ 40.7 mm (1.62 inch)