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

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Temperature Specifications



Controlled Air Cleaner Temperature 25°C (100°F)

Thermovalve 'A' switching temperature 55°C (131°F)

Carburetor Thermovalve Opening Temperature 33°C (91°F)

Air Bleed Valve 'B' (in air cleaner) Opening Temperature 65°C (149°F)

Purge Cut-Off Control Solenoid Valve Operation
Below 55°C (131°F) blocks manifold vacuum from the purge control valve.
Above 55°C (131°F) directs manifold vacuum to the purge control valve.
Spark Control Thermovalve Opening Temperature 50°C (122°F)