Heater Core Water Shutoff
#1
Burning Brakes
Thread Starter
Heater Core Water Shutoff
This is for my 66 coupe:
I found a number of threads about shutting off the hot water to the heater core. The valve needs to go on the 5/8" hose on the inlet side of the core.
When I bought the car, the heater hoses are disconnected from the core and looped together with a piece of copper tubing. So I assume the core leaks. I'm going to eventually pull the dash to do some work, but that will be a year or more before I can change out the core.
The hoses dangling under the the hood just look tacky, so I want to hook them back to the core, but I don't want any water to get to the core.
I'll put a shutoff on the inlet side of the core, but do I also need to put a shutoff on the 3/4" between the expansion tank and the heater core to make sure no water backs into the core from the return line?
Thanks,
Don
I found a number of threads about shutting off the hot water to the heater core. The valve needs to go on the 5/8" hose on the inlet side of the core.
When I bought the car, the heater hoses are disconnected from the core and looped together with a piece of copper tubing. So I assume the core leaks. I'm going to eventually pull the dash to do some work, but that will be a year or more before I can change out the core.
The hoses dangling under the the hood just look tacky, so I want to hook them back to the core, but I don't want any water to get to the core.
I'll put a shutoff on the inlet side of the core, but do I also need to put a shutoff on the 3/4" between the expansion tank and the heater core to make sure no water backs into the core from the return line?
Thanks,
Don
#2
Team Owner
Member Since: Mar 2003
Location: Greenville, Indiana
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slip some appropriate size plugs in the ends of the hose, just before the core, slip the hoses on the core and then pull the clamps back a little and clamp the plug inside the hose.
#3
Burning Brakes
Thread Starter
Good idea. I'll make a hardware store run. I may even see if I can solder a cap on the core inlet and outlet tubes
#4
Team Owner
Maybe the previous owner just tried to keep the interior cooler by bypassing the core. I'd make sure it leaked before I did any soldering. In fact, I wouldn't do any soldering. I'd just shut off the water to both hoses.
#5
Drifting