Paolo said
>
>I am going to have to replace my heater core valve as the engine coolant
>pressure seems to be too much for the old valve to resist. Ken Wilford
>identified this problem and I believe he stated that other conversions with
>more vigorous water pumps also have this problem. He can verify that.
>

Huh? I didn't realize that the coolant pressure was higher in an inline 4
than in a wasserboxer.

Alistair