So I recieve this 1950 Mercury to Norway in March. Its still cold up here, and the heater i disconeccted. The plumbing are looped both at the water pump/block and heater itself as of now. Do I just reconnect the hoses in any fashion or is it any in/out on the heater box. I might just need to do this in the harbour when I pick the car up if the weather is cold, so I want to make sure.
I don't know the answer to this at the moment, but I'll look in my Mercury overhaul manual or Ch***is catalog and try to find the answer.
The pressure hose from the pump goes to the top connection. That's the one that should have the valve in it, too.
I'd get the heater core tested before I went to a lot of trouble. That is a sign of a leaking heater core and a lazy mechanic. As long as there is flow , it won't make a big deal as to which ****** goes where unless you are restoring the car and the location of the hoses must match the factory. You can test it yourself with a bicycle tube. One end clamped on each ****** with the schrader valve in the tube in the middle a little air will tell if it will leak. A good radiator shop should be able to fix it if it does leak.
As a rule any hot water going to the heater should be to the bottom, thus forcing any air out the top. This reduces any air blockage .
The 50 & 51 Mercury cars have a thermostatic valve that limits the hot water into the heater core. The engine cylinder head connects to the temp valve connection on the right side port of the valve at the firewall. The left side firewall connector port directs flow to the core at the rear corner of the core support. The outlet flow port at the front lower area of the heater core support directs flow back to the water pump. Right and left are in relation to the automobile with right being the p***enger side and so on.
The Jalopy Journal
