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1969 Bronco Radiator Overflow Tank Install

rwroclawski

New Member
Joined
Aug 19, 2024
Messages
3
Hey All!

Got a question on the install of a radiator overflow tank for my 1969 Bronco. Does the hose need to be inserted so that it touches the bottom of the overflow tank or inserted enough so that it can be clamped down.

For reference, this is what I am trying to install:

https://www.wildhorses4x4.com/early-bronco-radiator-overflow-tank-oem

Sorry for the newbie question. Just trying to get it right :)

Thank you in advanced!
 

Broncobowsher

Total hack
Joined
Jun 4, 2002
Messages
35,391
Bottom or near bottom.
When the engine cools off there will be a vacuum in the cooling system that will draw the coolant back into the cooling system. That vacuum will suck the coolant back up the overflow hose and into the engine. It needs to be at the bottom so it sucks coolant and not air.

I say near bottom just so if any dirt gets in, it can settle to the bottom and not drawn into the cooling system.
 
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