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Coolant flow question.

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Old Jun 5, 2015 | 01:56 PM
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Coolant flow question.

'50 F-6 COE w/254 engine.
I want to install a coolant filter, which would ordinarily parallel with a heater circuit. Problem is, no heater circuit. I found the plug on the coolant pump to install a heater flow control valve to the heater, but what path does the coolant take to get back into the system? I can't find any flow diagrams. I was thinking of the return line going back into the engine block at the 1/4" NPT drain **** fitting at the left rear of the engine. Does that sound good to anyone? How does a regular heater install?
 
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Old Jun 5, 2015 | 03:57 PM
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The water pump is where the coolant to the heater goes back into the system. It comes out of the side of the head, behind the carb, goes through the heater, and the hot water drawn through the system by the water pump. Here's pics of a 254 F6 with factory recirc heater.



 
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Old Jun 5, 2015 | 04:05 PM
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How about these? Very popular in Australia. You slip them into the upper radiator connection and the hose hold them in place. They supposedly fill up pretty quickly tho.





 
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Old Jun 5, 2015 | 08:56 PM
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Originally Posted by 52 Merc
The water pump is where the coolant to the heater goes back into the system. It comes out of the side of the head, behind the carb, goes through the heater, and the hot water drawn through the system by the water pump. Here's pics of a 254 F6 with factory recirc heater.





Thank you.
Aha! So that's what that plug is for. I'm not sure if I have room to spin a valve in there without pulling the head due to the COE exhaust manifold so I'll just have to get creative.


 
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Old Jun 5, 2015 | 09:46 PM
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If you can get a 90 degree elbow threaded into the head next to the exhaust manifold then you can use an in hose water valve.
 
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Old Jun 5, 2015 | 10:16 PM
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Originally Posted by 38 coupe
If you can get a 90 degree elbow threaded into the head next to the exhaust manifold then you can use an in hose water valve.
I'll try that. I'll use a 90° ell with a close and long nipple because that manifold gets really hot. Don't think a regular heater hose would last long.
 
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Old Jun 6, 2015 | 07:59 AM
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Originally Posted by ALBUQ F-1
How about these? Very popular in Australia. You slip them into the upper radiator connection and the hose hold them in place. They supposedly fill up pretty quickly tho.







That's pretty unique, but the spin-on element is more convenient I think.
 
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Old Jun 6, 2015 | 10:42 AM
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90 degree street elbow may work, then put your nipple in that after it's installed.

 
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Old Jun 6, 2015 | 06:43 PM
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Yep. I like that.
 
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Old Jun 13, 2015 | 11:04 PM
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Probably not how Henry would have done it, but it should work fine for the heater and filter.






 
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