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 Free height
51.28 - 51.48 mm (2.0189 - 2.0268 inch)
Pressure at height
Installation
166 - 188 N (16.9 - 19.2 kg, 37 - 42 lbs.) at 33.8 mm (1.331 inch)
Valve open
291 - 372 N (29.7 - 37.9 kg, 65 - 84 lbs.) at 24.4 mm (0.961 inch)
Out-of-square
Less than 2.2 mm (0.087 inch)