Author Topic: heater core  (Read 2208 times)

Offline berrybus

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heater core
« on: September 23, 2006, 02:26:35 PM »
i removed heater core from bay compartment. whats best to do with the inlet and outlet ? if i plug them off whats best to use? also if i leave valves closed in back motor compartment do i lose heat in core in dash?
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Dallas

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Re: heater core
« Reply #1 on: September 23, 2006, 03:05:57 PM »
If you have a GMC, you'll loose all coolant flow to the front if you shut off the valves in the engine compartment.

The Same if you have a Flx or an older ACF-Brill.

Those are the only ones I know about from first hand experience.

I hope this Helps!

Dallas

Offline berrybus

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Re: heater core
« Reply #2 on: September 23, 2006, 03:56:14 PM »
i forgot to mention its a mci 9. thanks jim
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Offline gumpy

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Re: heater core
« Reply #3 on: September 23, 2006, 08:30:37 PM »
I can't say what's best to use to plug them, as I didn't remove mine. If it's copper, you could probably solder caps on the lines. Or, you might could tie the two ends together with heater hose.

I do know, though, that if you shut off the valves in the engine compartment, you will lose coolant flow to the driver heat/defrogger.

craig
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Offline JackConrad

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Re: heater core
« Reply #4 on: September 24, 2006, 04:46:01 AM »
     When we removed the heater core from our MC-8, I wanted the option of re-installing it later, if I changed my mind.  I blocked the lines to the heater core using a short length of rubber heater hose with an appropriate sized pipie nipple and cap in the other end of the hose. Hose clamps finished the process.  Hope this helps, Jack
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