Leak in Overflow Tube

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erkbrn
Posts: 69
Joined: Sat May 11, 2019 2:24 am
First Name: Eric
Last Name: Brown
* REQUIRED* Type and Year of Model Ts owned: 1915 Speedster
Location: San Diego
Board Member Since: 2019

Leak in Overflow Tube

Post by erkbrn » Thu Oct 24, 2019 9:05 pm

Hi everyone,

I was cleaning my radiator today (1915 brass) and it suddenly developed a pretty substantial leak. Upon removing the radiator cap, a steady stream of drops started pouring out of the overflow tube at the bottom of the radiator. It is definitely coming from the tube and not anywhere else, since plugging the tube with a finger stops the leak completely. The fluid level is well below the tube under the radiator cap. I assume the tube has given out internally and developed a crack inside the radiator near the bottom of the top reservoir. Is this fixable? This is the original radiator and I would rather not replace it.

Thanks
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Adam
Posts: 1550
Joined: Sun Jan 06, 2019 11:57 am
First Name: Adam
Last Name: Doleshal
* REQUIRED* Type and Year of Model Ts owned: ‘13 Touring, ‘24 Touring, ‘25 TT dump truck, ‘26 Tudor, ‘20 Theiman harvester T powerplant, ‘20 T Staude tractor
Location: Wisconsin
Board Member Since: 2000

Re: Leak in Overflow Tube

Post by Adam » Thu Oct 24, 2019 9:13 pm

Quick fix is to shove a piece of rubber tubing over it that just fits snugly. If that fixes the leak, then the overflow tube has some internal perforations and should be fixed correctly by a radiator repair shop.
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