Are you running a coolant overflow tank ? - Page 3 - Vintage Mustang Forums

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post #31 of 42 (permalink) Old 07-30-2008, 08:07 PM
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post #32 of 42 (permalink) Old 07-30-2008, 09:59 PM
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Originally Posted by slim
Hiker, I agree. I keep the level as shown in the owners manual. Never overflows.
I had a Mustangs Plus 3 row radiator in the fastback before it got tore apart. Filled up to specs it would spit coolant when parked. It liked a level such that you could see the fins inside the tank. Never ran hot. Drove the car as a daily driver 10 years like that. I think it took me 2-3 years before I stopped topping it off and just left it level with the fins.


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post #33 of 42 (permalink) Old 07-31-2008, 12:59 AM
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I have a plastic universal from autozone. These are a necessity in AZ if you are going to drive your car. I wanted to keep the engine bay looking stock so I mounted it in the front fender well directly in front of the tire on the drivers side. Can't see it in the engine bay and still works perfect.


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post #34 of 42 (permalink) Old 07-31-2008, 01:10 PM
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I use an aluminum with a screw on cap as others do. Works well and looks nice next to aluminum radiator. I also use the cap shown in the picture w/ a double gasket. It was 104 on monday in dallas so I found it necessary to have a good cooling setup uncluding overflow tank.

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post #35 of 42 (permalink) Old 07-31-2008, 01:54 PM
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I'm using the same Mustang Plus type aluminum tube style tank and a Stant performance radiator cap.

It was nice to drive 1500 miles recently and have the same amt. of coolant at the end of trip as when I began.


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post #36 of 42 (permalink) Old 07-31-2008, 03:32 PM
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Nope. Filled the radiator to the top, and it finds a good level. I don't drip or run hot. I check it periodically.


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post #37 of 42 (permalink) Old 06-20-2011, 11:09 AM
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Originally Posted by t.goat View Post
I have this one from Jegs. Didn't even have to drill any holes. Everything secured on nicely on some pre-existing rad bracket holes.

Wanted to ask a few questions on this. 1) how do you like the Jegs product? 2) how did you install it, as a overflow tank or a recirculation tank? 3) what's the difference between the two installs? 4) did you use the Jeg's bracket to install this or drill your own holes?

Thanks! I've just bought a 65 Fastback and of course am having a little overflow after short trips.
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post #38 of 42 (permalink) Old 06-20-2011, 07:17 PM
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a true over flow tank doesnt return the collant to the rtadiator when it cools off.
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post #39 of 42 (permalink) Old 12-11-2016, 06:47 PM
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I have a cheap autozone plastic overflow tank next to my radiator. I want to pull it out and not use an overflow tank at all because the nice aluminum ones are $200+. Is there anyone else in hot temperature locations not using one?

What problems could I run into if I don't use one?
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post #40 of 42 (permalink) Old 12-11-2016, 06:57 PM
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This is at least a 5 year old thread but,,, I use this

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post #41 of 42 (permalink) Old 12-11-2016, 07:21 PM
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Nope, never had the need for one.
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post #42 of 42 (permalink) Old 12-11-2016, 08:01 PM
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My car behaves quite well even in the Texas heat, so I don't know how much I really need it, but it looks cool and it keeps it from making a mess on the rare occasion that it does get really hot.

Rather expensive as overflow tanks go, but it was delicious to empty.

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