Take a look at wjajr's pictures. His install looks very clean!
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| Need help with connecting carb heat to cooling system https://slantsix.org/forum/viewtopic.php?t=51247 |
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| Author: | Dave [ Wed Feb 27, 2013 10:56 am ] |
| Post subject: | Need help with connecting carb heat to cooling system |
I am installing an Offy intake manifold on my W-150 slant six. I installed a carb heater kit to the underside of the manifold that connects to the cooling system via heater hoses. Does anybody know the correct way to hook this into the existing plumbing? |
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| Author: | FrankRaso [ Wed Feb 27, 2013 11:09 am ] |
| Post subject: | |
I would connect it so that the heater is in the return line from the heater. While you're at it, probably wouldn't hurt to make sure that the heater core is hooked up properly so that the hot water enters the bottom of the heater core and exits from the top. This would help to purge any air from the heater core. I'm not sure the heater setup on your truck but on my '65, the heater core inlet is the left side nozzle on the firewall. |
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| Author: | Reed [ Wed Feb 27, 2013 11:31 am ] |
| Post subject: | |
I agree with Frank unless you have an air conditioning system that uses a coolant shutoff valve. If you have a coolant shutoff valve in one of the heater core lines and the valve is closed no coolant will flow through the heater under the carb. |
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| Author: | Aggressive Ted [ Wed Feb 27, 2013 12:30 pm ] |
| Post subject: | |
Take a look at wjajr's pictures. His install looks very clean!
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| Author: | Dave [ Wed Feb 27, 2013 3:15 pm ] |
| Post subject: | Flow direction? |
Thanks for the tips. The next stupid question is the direction of coolant flow. I have one connector eminating from the water pump and the other from the head. I took the engine out about 5 hyears ago and, for the life of me, can't remember which way the coolant is flowing. I presume out of the water pump. As for A/C, I have the patented Dodge 250 Air Conditioning system: open two windows and drive 50 mines an hour. Dave |
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| Author: | ValiantBoyWonder [ Wed Feb 27, 2013 5:11 pm ] |
| Post subject: | |
Head/thermostat is the out and the water pump is the in. |
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| Author: | nzpete [ Wed Feb 27, 2013 5:16 pm ] |
| Post subject: | |
No, I think it is the other way - flowing to the pump. I haven't looked at a Slant 6 pump for a while now, but if I remember right, the heater connection will be in the intake for the pump. This is drawing water from the bottom of the radiator, therefore it will also draw water from the heater connection. The hot water will come from head and get back to the water pump cooler too. |
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| Author: | ceej [ Wed Feb 27, 2013 7:27 pm ] |
| Post subject: | |
nzpete has it right. CJ |
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| Author: | Dave [ Wed Feb 27, 2013 8:58 pm ] |
| Post subject: | heater core in/out |
Thanks for all the help. I'm hoping a truck owner will pop in on this thread and confirm Frank's opinion that the inlet side of the heater core is on the left. I have been through the book and it is ambiguous at best. Dave |
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| Author: | wjajr [ Thu Feb 28, 2013 5:17 am ] |
| Post subject: | |
Aggressive Ted: Quote: Take a look at wjajr's pictures. His install looks very clean!
  Hard to see, but bottom nipple off of water pump hose runs to left side heater core at fire wall. From right side heater core at fire wall hose runs to manifold heat. From manifold heat, hose runs to upper nipple at water pump. Seams to provide enough heat for manifold, and the old bastard driving this heap during cooler weather with top down… I never had a bleeding problem purging air from system. |
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