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Radiator overflow ???? what are you running?

jimbosride

jimbosride

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65 Dodge 383 mild build. Running a Flowkooler pump and a aluminum radiator. Car runs great ,180 to 200 degrees ..... About 600 miles on the engine. If I top off the radiator
it will puke some coolant when I park it. Maybe a cap issue ....or do I not fill radiator to the top?....or overflow bottle ??



​


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Fill just over the core.
The water expands when heated, has to go somewhere.
The core is what does the cooling not the upper tank.

Awesome car :thumbsup:
 
That's what I thought ..... last summer I ran it without the puke .... but topped it off before winter storage.

:moparsmiley::rolleyes:
 
Dorman part. From Summit. I think it's a Mitsubishi application.

Keep in mind having a coolant recovery keeps air out of the cooling system. No air reduces oxidation.

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It's crazy how they developed that cooling system to work as designed.
 
Billccm said:
Dorman part. From Summit. I think it's a Mitsubishi application.

Keep in mind having a coolant recovery keeps air out of the cooling system. No air reduces oxidation.

View attachment 1663701

View attachment 1663702
Click to expand...
That looks like the one I have in the GTX.

In my 62 Belvedere, I welded up a 10" section of 2-1/2" exhaust and use that as an overflow tank.
 
There are tons and tons of clear plastic expansion tanks available these days. I just grabbed one from a new car that fit pretty well and built a little bracket for it.

DSC_3678 (Large).JPG
 
For many 66-70 B bodies, the 73-76 A body overflow jug fits and works quite well.
 
I lowered the water level to see what happens. I think that may do it.

Thanks for the info. :thumbsup:
 
You need to get the right one for your needs. Some are just overflow and do not allow returning of the fluid back to the radiator. A recovery style allows the fluid to return to the radiator. Some caps will not work correctly with recovery systems.
 
Manual says 1" below bottom of filler hole. I fill to there, "if" it pukes a little, then it was a touch high. I run flowkooler, aluminum radiator in 496" in 125° weather w a/c. By filling 1" below opening, I've never had an issue.
 
Mobil1 Oil bottle...rinsed well of course. Fits perfectly in the space.

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I found a nice spun aluminum tank, it even came with a tig welded aluminum bracket. Just turn the Schwinn logo to the backside. LOL

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Universal O'Reilly's tank. Zip tie in place.

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It is all about the technology.
If you want you car "correct" do what the manual for the car indicates. That is what the engineers felt was right.
All cooling systems are recovery systems now, new technology. Ford calls it a degas tank.
That is a great looking car, like the body style and color.
 
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