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Does coolant flow from top to bottom?

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Old 02-06-03, 08:37 PM
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Does coolant flow from top to bottom?

I'm just curious to find out what direction the coolant flows. Does it come out the top, run down through the radiator and then back into the block through the bottom hose? Just trying to figure out the overheating thing still. Thanks
Old 02-06-03, 08:40 PM
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goes in the rad thruogh the top and exits the bottom, and into the engine.
Old 02-06-03, 08:44 PM
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thanks, that's all i need to know
Old 02-06-03, 09:47 PM
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Originally posted by fastrotaries
goes in the rad thruogh the top and exits the bottom, and into the engine.
Err... I could've sworn it was the other way around...
Old 02-06-03, 09:52 PM
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Originally posted by White_FC
Err... I could've sworn it was the other way around...
Nope.

If the coolant travelled from the top of the rad to the engine, then every time you hit the gas, even with the sys full, the water pump would suck air. By pushing the coolant up and away from the engine this is no longer a concern.
Old 02-06-03, 10:07 PM
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Amur, I fail to see how it could suck air into the water pump if you had the system full of water.. that just plain makes no sense.
Old 02-06-03, 11:00 PM
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You're right. Blame fuzzy memory and a brain that should have gone 2 bed over an hour ago instead of playing a sub simulation.

https://www.rx7club.com/forum/showth...coolant+follow
Old 02-06-03, 11:14 PM
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No Amur, YOUR right....
I just looked at the FSM and yes it definatly DOES flow the opposite to how I allways thought it did...
Oh well...
Old 02-06-03, 11:15 PM
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I meant that you're right about it probably not sucking air if the system is full.
Old 02-06-03, 11:21 PM
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Originally posted by Amur_
I meant that you're right about it probably not sucking air if the system is full.
Oh haha I see now..
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