Heater Hose Question
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Senior User
Joined: Aug 2004
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Heater Hose Question
I recently acquired a 1965 Ford F100 with a 1969 Mustang 302 V8 with an FMX transmission. There is currently a small piece of heater hose looped back on itself on the heater core at the firewall. There is also a small piece of heater hose from the water pump to the intake manifold. Winter is coming on and I'd like to hook up the heater.
Question:
Can anyone tell me the proper way to connect these hoses? In otherwords, for instance, does the hose going from water pump connect to the heater core on the right side (facing the firewire) or the left side. Or does it even matter. I believe the heater system in the truck is called the "Economy Heater'.
Thanks!
Question:
Can anyone tell me the proper way to connect these hoses? In otherwords, for instance, does the hose going from water pump connect to the heater core on the right side (facing the firewire) or the left side. Or does it even matter. I believe the heater system in the truck is called the "Economy Heater'.
Thanks!
Lead Driver
Joined: Aug 2003
Posts: 6,305
Likes: 18
From: Boulder Creek, Ca
Have same setup. There are 2 outlets on water pump. Upper fitting has small, 4 or 5" L shaped hose that goes to fitting on the thermostate housing. The second fitting on water pump sets lower, close to the alternator bracket, and connects to the outlet side of heater, the heater hose connector at firewall closest to passenger side fender. The other hose connection at firewall, closest to engine, goes to a fitting located on the intake manifold just aft. of the thermostate. The hoses are bout 3 1/2 to 4' long. Suspect previous owner rerouted hoses because of possible leak in heater radiator. May want to check, not too difficult to replace.
dave
dave
dave
dave
Last edited by daveengelson; Sep 29, 2004 at 01:16 PM.
Fleet Owner
Joined: Jun 1999
Posts: 24,552
Likes: 74
From: Creedmoor, North Carolina
Michael, I suspect you may have a leaky heater core and it is bypassed. Get some new 5/8" heater hose and connect each tube of the core to one of the two on the engine and see if it leaks or holds.
I can never find it when I need it but I have the part number from Advance Auto for the heater core. I can tell you this in case your guy can't find your year in his books, Ford used the same core through 79.
It doesn't matter which side of the core the hose is connected to because the water pump on the front of the engine will circulate the water and the core doesn't care what direction the flow is.
Measure it yourself, going out to the inner fender to the support clamps and get at least a foot more hose than needed and put half on each side. That way you will have some repair should a end go bad in the future.
John
I can never find it when I need it but I have the part number from Advance Auto for the heater core. I can tell you this in case your guy can't find your year in his books, Ford used the same core through 79.
It doesn't matter which side of the core the hose is connected to because the water pump on the front of the engine will circulate the water and the core doesn't care what direction the flow is.
Measure it yourself, going out to the inner fender to the support clamps and get at least a foot more hose than needed and put half on each side. That way you will have some repair should a end go bad in the future.
John
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