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-   -   FIX: Radiator Barb Return to Overflow Tank (http://www.peachparts.com/shopforum/diesel-discussion/306475-fix-radiator-barb-return-overflow-tank.html)

ngarover 10-08-2011 10:28 AM

FIX: Radiator Barb Return to Overflow Tank
 
5 Attachment(s)
Ok, Seems to be fairly common issue, The plastic barb on the top of your radiator (82-85 I believe) gets brittle with age and breaks off, leaving coolant spraying all over your engine.

http://www.peachparts.com/shopforum/...1&d=1318083059

Here is a $1.25 fix.

Goto the local hardware store and find one of these barbs. Take the broken piece with you if you can, and maybe even the hose just to make sure you get the right size.

http://www.peachparts.com/shopforum/...2&d=1318083072

Drill a hole CAREFULLY thats a little smaller than the threaded end of the barb. The tank plastic is very thin and take no effort whatsoever to drill so again, slow and careful. I covered my threads in High temp red gasket sealer to stop any potential leak (might be overkill)

http://www.peachparts.com/shopforum/...4&d=1318083103

Using pressure from your finger and the correct wrench for the barb, push on it while screwing it against the new drilled hole. IT should thread itself and then tighten up.

Reattach the overflow tank return line, give the gasket sealer a little time to harden and you should be gold.

http://www.peachparts.com/shopforum/...5&d=1318083127

Nice thing is it's replaceable should it ever break again.

Palangi 10-08-2011 11:33 AM

Nice !!

I remember some years back, somebody did a similar fix using a metal tire valve.

kerry 10-08-2011 01:03 PM

Great idea.

scottmcphee 10-08-2011 02:26 PM

Knowing that that part breaks off so easily, as preventative maintenance everybody should fillet the area with JB weld before the original nipple snaps off, and you should be golden.

ngarover 10-08-2011 04:26 PM

Quote:

Originally Posted by scottmcphee (Post 2806192)
Knowing that that part breaks off so easily, as preventative maintenance everybody should fillet the area with JB weld before the original nipple snaps off, and you should be golden.


Oddly enough the jb weld does not adhear to the plasic on the radiator very well. I had infact done the jb weld trick first, which after sitting for 24 hours prompty popped right off... there was jb weld half way up the barb, plus the entire vally filled with it, as you see in te pictures, there's none now....

kerry 10-08-2011 05:23 PM

I think the fitting is better than the JB weld. In fact, it might be worth doing as preventive maintenance????

hobberslobbers 12-30-2011 06:09 PM

i used 2-part, high-temp epoxy from autozone and it worked great! i don't think JB weld will adhere to nylon fittings like the one you show in the pics.


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