Coolant Overflow Fix

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Aug 8, 2007 | 10:54 AM

lr172

Thread Starter

Racer

Joined: Jul 2007

Posts: 444

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From: Roselle IL

Coolant Overflow Fix

Does anyone know what type of plactic the coolant overflow resevior is? Mine has a small crack that is leaking. The crack is on the back side, so the repair will not be visible. I am trying to determine the best adhesive to use in the fix.

Thanks in advance.

Aug 8, 2007 | 11:01 AM

Jud Chapin

Race Director

Joined: Sep 2001

Posts: 10,560

Likes: 439

From: Wellington, FL

St. Jude Donor '11 thru '25

I've heard from the forum that some have been able to repair their tanks. However, I've tried and never had any success. If I were you, I'd just replace it...they're not that expensive.

Aug 8, 2007 | 11:03 AM

SIXFOOTER

Le Mans Master

Joined: Jan 2006

Posts: 9,192

Likes: 27

From: Boca Raton Florida

There was a thread in here a week or so ago about that. I never have found an adhesive that would really work. But back in the day, I cut up a piece of milk jug and used Super Blue RTV to stick it on the back side under a mount ear to seal a crack, It wasn't pretty but it worked

Aug 8, 2007 | 12:21 PM

lr172

Thread Starter

Racer

Joined: Jul 2007

Posts: 444

Likes: 0

From: Roselle IL

Thanks for the tip. I was thinking of securing a patch, as it is not in a visible area. The RTV is a great idea. That is some sticky stuff.

I'll give it a whirl.

Aug 8, 2007 | 05:35 PM

cloue

Intermediate

Joined: Jul 2007

Posts: 39

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From: Quebec Quebec

You might use transparent silicone sealant. It works everywhere.

Aug 8, 2007 | 06:25 PM

jamesd2

Advanced

Joined: Mar 2007

Posts: 60

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My '73 reservoir and cap both had cracks as well. I replaced the old cap with a new one, cracked a little piece off of the old cap, scuffed (sandpaper)it, and the cracked area on the reservoir, thoroughly cleaned both, and sealed the crack externally with J-B weld on top of the patch. Sorta unorthodox, but it has held up well - even in Texas heat. Good luck

Aug 8, 2007 | 07:10 PM

I'm Batman

Team Owner

Joined: Oct 2004

Posts: 23,831

Likes: 10

From: Springfield MO

St. Jude Donor '07

Unless it's a one-year-only unreproduced tank, I'd buy a new one...they're fairly cheap. If the plastic is fatigued enough for one crack, it's probably in bad enough shape to crack elsewhere.