Radiator overflow tank

[Carlriddle]

Should the overflow tank be mounted level with the radiator, above, below, or does it matter.  Place I had in mind is about level with the bottom of radiator.  I know the coolant will flow down just curious if it will go back up??

[fastcorvairs]

Should the overflow tank be mounted level with the radiator, above, below, or does it matter.  Place I had in mind is about level with the bottom of radiator.  I know the coolant will flow down just curious if it will go back up??

Carlriddle

Ifen you rad cap is sealed right and over flow line to the puke tank is tight it will hold a vaccum when hot and allow the stystem to suck the water back in as it cools.  To answer your question no it doesn't matter. IMO. 

[Carlriddle]

Thats the answer I wanted to hear.

[fabr]

IF the radiator cap is a coolant recovery type yes it will draw coolant back into the system as the coolant cools and contracts. This also helps prevents trapped air in the system since it will usually self purge any air. Just make sure that there is no air leaks between the rad cap and the coolant recovery tank.Also keep in mind the end of the hose MUST be kept in coolant at all times or it will introduce air back into the system.  I agree with fast

[Yoshi]

the cap for the overflow needs to be above the cap for the radiator....

[fastcorvairs]

the cap for the overflow needs to be above the cap for the radiator....

Yoshi
That would depend allot on what type of overflow tank you were using.  If the tank dose not have a down tube in it and the coolent runs in the top only then yes the tank would have to be above the rad cap. if not you would induce air back into the stystem.  But if you are using a puke tank that has a down tube in it where the coolent go's in the bottom and has to fill the puke tank to then puke out the that tank can be below the rad cap. 

[Yoshi]

Yoshi
That would depend allot on what type of overflow tank you were using.  If the tank dose not have a down tube in it and the coolent runs in the top only then yes the tank would have to be above the rad cap. if not you would induce air back into the stystem.  But if you are using a puke tank that has a down tube in it where the coolent go's in the bottom and has to fill the puke tank to then puke out the that tank can be below the rad cap.

I was assuming we were talking about a pressurized overflow system, and you would then use the overflow to add fluid........

[fastcorvairs]

I was assuming we were talking about a pressurized overflow system, and you would then use the overflow to add fluid........

Damm now your getting all fancy talk on me.  (Pressurized) Way above my head.   

All I know is that if your overflow tank coolent comes in from the bottom and has to seek a level before it exit's the tank then that will allow coolent to remain a the inbound port to be returned to the rad as it cools.  Not indusing air to the stystem. That way the tank can be placed below or at lest mid way of the radiator.

[Admin]

that would be an expansion tank not a puke tank...

[fastcorvairs]

[Jerry]

Bugpac what setup are you using?

[SPEC]

Maybe I was thinking about Spec's thunder jug.

Huh?
HE HE HE HE HE

[Admin]

Bugpac what setup are you using?

Im gonna add a puke tank, I havent sourced one yet tho, I did debate an expansion tank, but the only proper way to do that is to remove the rad cap from the rad...

[fabr]

Should the overflow tank be mounted level with the radiator, above, below, or does it matter.  Place I had in mind is about level with the bottom of radiator.  I know the coolant will flow down just curious if it will go back up??

Just like a straw pulls pop from the bottom of a cup.

[plkracer]

I'm disappointed master... it's atmospheric pressure that pushes the liquid up the straw....