>huh.  thats interesting too.
>when you pull coolant into the heater core, is it not going to the
radiator?
>i thought that it would only take some of the coolant, and you would have
>coolant going to the radiator and the heater core, ie two heat exchangers
>working on the same amount of coolant instead of one (the radiator) ....

Exactly!  The turn-your-heater-on method of cooling down the engine, but not
the occupants, has long been used by rally car drivers.  Besides, when you
open the heater valve, you instantly dump whatever cold coolant is in the
heat exchanger into the cooling system.

Chris,

'85 Westy in Fridayland.