heater hose routing

[Frank Gooz]

Question, The routing for my heater hoses seams Backwards. They were from the control valve (Back of the head) to the bottom of the heater core. Then from the top of the heater core to the bypass at the top of the water pump. I am working om my 1950 Dodge Coronet with a model 100 heater box.

I think the flow should be down. From the back of the head to the top of the heater core. cooler water going to the bypass at the top of the pump.

Much longer hoses for this routing. 

I would like to hear any feedback or suggestions please.

Frank

[allbizz49]

I'll go out on a limb and say you have hot water running through the heater core and that's all that matters. Why not run it how you have it, swap the lines, run it and see if it makes a difference? 

[Merle Coggins]

Heater cores flowing from bottom to top is fine. That’s how I was taught to plumb them up. It allows air to purge easier. You’re thinking of it like a radiator, but it’s not quite the same function. 

[DJK]

[Sniper]

On my heater, not sure what model as that tag is blank, the plumbing is just like yours and it's pretty obvious how it gets plumb as doing it the other way would necessitate some long and creatively routed hoses to make it so.  You can see the top hose in this pic

 

[Frank Gooz]

Thanks for all the replies. I will leave it the way it was, just like Snipers. It will also look much cleaner.

 

Frank

[desoto1939]

Can I make a suggestion.

Where the shutoff value screws into the block that is your main shut off but I would also install a shutoff value whne it goes into the top of the waterpump.

 

I suggest this for one good reason.  So if you had to work on the hearter now you have to drain the radiator so no water runs out of the blcok and system. If you have two values then you shut off the water flow at the back of the bloc and at the wp. Then just connect the hose at the Wp to the blcok value and you still have water ciculating while you work on the heater core.

 

Rich Hartung

desoto1939@aol.com