[s-cars] High coolant pressure and heater valve

[Vincent Frégeac]

Hi all,

The coolant hose popped out a second time at the heater valve. Looking at it
closely, I've seen a quarter inch of the heater valve tube has broken and is
sitting inside the hose. So a new heater valve is coming.

But I still have a concern. There is a 3/4 inch of plastic tube left on the
heater valve and when I reinstalled the hose the first time, I pushed it all
the way to the valve body and tightened the collar really hard. So, to pop
the hose out a second time, it required a fairly high pressure in the
coolant system. Anyone have have a rough figure of the "normal" pressure in
the coolant system when the engine is hot and running at a good speed? Both
time, the hose popped out after half an hour on the highway at 75mph (It's a
legal speed here, or almost, I would say it's officialy tolerated).

As always, thanks for your help.



Vincent.