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Blocking off heater hose

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Old Sep 4, 2010 | 02:02 PM
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james gang 1001's Avatar
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Blocking off heater hose

Can I just block off the outlet on the water pump and the intake manifold. This is on a '64 mercury 390. Since I don't have a heater I was just trying to clean things up. Seems like it would be no different than the circ. valve being closed.

Thanks Scott
 
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Old Sep 4, 2010 | 07:28 PM
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Bear 45/70's Avatar
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Sure you can. On my race cars, the pump and manifold had plugs it them.
 
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Old Sep 4, 2010 | 08:16 PM
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Blocking them is no problem. In 73-79 f series when you have factory air, there is a valve in the heater hose to shut off flow to the heater core. You're effectively doing the same thing (only more neatly).
 
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Old Sep 4, 2010 | 08:33 PM
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Originally Posted by mikeo0o0o0
Blocking them is no problem. In 73-79 f series when you have factory air, there is a valve in the heater hose to shut off flow to the heater core. You're effectively doing the same thing (only more neatly).
The valve thing was done long before that. I had a 1967 and a 1968 F250s that had a valve in the heater hose to control how much heat the heater created. If I remember right, my 1956 Crown Vic had the same valve to the heater.
 
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Old Sep 4, 2010 | 09:11 PM
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Thanks. I didn't think it would hurt. My neighbor has the shut off valve in his '54 custom cab.
 
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Old Sep 4, 2010 | 09:58 PM
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ANOTHER "cure" is to use a 'plug' at the hose outlet AND inlet. ( like a large set-screw)
 
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