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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Boost Control (Turbo Only)

On turbo models, the warm up regulator/boost control is connected directly to the inlet manifold.
The special warm up regulator incorporates a steel diaphragm valve. The pressure of the spring in the valve is controlled by a bi-metallic regulator and a rubber diaphragm which responds to the pressure generated by the compressor. At a pressure of about 5.8 psi (0.4 bar) the spring pressure on the steel diaphragm is lowered, thereby lowering the control pressure.