460 Heater hose connection
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460 Heater hose connection
I have a 460 installed in my 79 F-150 and I am having a few problems with the heat. Anyone know which side is the supply and which is the return for the heater hose connections to the motor? Does it matter? I understand the shutoff valve needs to be installed in the supply side, aside from that im lost.
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Joined: Jul 2003
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From: East Central Florida
Sure, here's the deal.
Supply side is the one at front of Intake manifold before or at the thermostat housing and it goes to topmost inlet tube of core. It delivers heated or hotest coolant out of engine to heater system.
Return side goes to fitting on water pump where spent coolant from heater core is recycled back into coolant flow & into engine where it reheats from cooling the engine.
Heated coolant leaves through top radiator hose & returns thru bottom hose cooled by radiator, because falling coolant gives up heat best. It's why highest radiator stub should be the inlet, so falling coolant in core gives up most heat which heater plenum then spreads through passenger compt.
Now that I said all that, you realize you could have figured that out, or you alread knew it, didn't you??
Supply side is the one at front of Intake manifold before or at the thermostat housing and it goes to topmost inlet tube of core. It delivers heated or hotest coolant out of engine to heater system.
Return side goes to fitting on water pump where spent coolant from heater core is recycled back into coolant flow & into engine where it reheats from cooling the engine.
Heated coolant leaves through top radiator hose & returns thru bottom hose cooled by radiator, because falling coolant gives up heat best. It's why highest radiator stub should be the inlet, so falling coolant in core gives up most heat which heater plenum then spreads through passenger compt.
Now that I said all that, you realize you could have figured that out, or you alread knew it, didn't you??
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