Pinhole leak in radiator--Alumaseal/Bar's Stop leak? - JeepForum.com

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post #1 of 17 Old 01-23-2009, 10:49 AM Thread Starter
JEEP97TJ
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Pinhole leak in radiator--Alumaseal/Bar's Stop leak?

We discovered a pinhole leak in my (new) radiator. It's construction is similar to stock-aluminum core, plastic tanks. I was not satisfied with (2) all aluminum radiators from radiatorbarn, so that is not an option.

I would like to hear about people's experiences with such products as Alumaseal and Bar's stop leak, or any other variations. Ground pepper?

Did it solve the problem? For how long?

Did it cause any other issues (ie heater core)?

Would you recommend it's use?


Last edited by JEEP97TJ; 01-23-2009 at 11:35 AM.
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post #2 of 17 Old 01-23-2009, 10:53 AM
TheBoogieman
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If it's new,send it back.
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post #3 of 17 Old 01-23-2009, 10:56 AM Thread Starter
JEEP97TJ
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Quote:
Originally Posted by Theboogieman View Post
If it's new,send it back.
Just looking for suggestions on the above products. Thanks.
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post #4 of 17 Old 01-23-2009, 10:58 AM
fasassvalk
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works

bars and alumaseal work good in a pinch, but you have to question if it plugs a leak what else does it plug ?
If it is new I would swap or get my money back.
I ran some bars in a truck for two years, with a radiator tank seeping
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post #5 of 17 Old 01-23-2009, 11:12 AM
bigj1974
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I've got some alumaseal in my Jeep coolant.

works like a charm.

discovered a crack in the water jacket about 3 years ago.

what else does it plug up?

I dunno, but I haven't had a problem with the engine since (just everything else ). I was told by a Jeep tech it'd plug up all kinds of stuff. I saved a $5000 engine replacement (Jeep dealer quote) with a $2 tube of Alumaseal.


and...get a steel radiator. if you're not satisfied with the new one there is no need to keep it.
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post #6 of 17 Old 01-23-2009, 11:32 AM
MountainMan864
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I once heard about crackin an egg in the radiator for a quick temporary fix.
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post #7 of 17 Old 01-23-2009, 12:27 PM
firefly
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I had a pin hole in my radiator and used the off the shelf stuff from my local auto parts place and it worked well. No leaks...but I am replacing the radiator this weekend for piece of mind, plus I need a new water pump so I figure I may as well rip everything apart while I'm in there.

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post #8 of 17 Old 01-23-2009, 03:39 PM
GaryS
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I ran Alumaseal for years in a '79 Chevy pickup that had a leak at a seam in the radiator top tank. Never had a problem.
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post #9 of 17 Old 01-23-2009, 08:46 PM
snowman43
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If it is just seeping, I would try the alumaseal. If it's actually spraying a stream out under pressure I think you are out of luck.

At any rate, I would avoid Bars leak, has a nasty habit of plugging heater cores in my experience.


Good Luck
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post #10 of 17 Old 01-23-2009, 09:12 PM
happymudder10
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Never tried alumaseal, but I was on a road trip once with the family, and the radiator on our Suburban started to leak. Being that I was about 1000 miles from my house and tools, I stopped into a service station and bought some off brand radiator stop leak. Well, 6 months later I was replacing radiator, water pump, and hoses. That crap got everywhere and started plugging things up.

Just a traveling cat in a tall black hat riding a goat. Nothing to see here.
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post #11 of 17 Old 01-23-2009, 11:18 PM Thread Starter
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anybody used ground pepper?
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post #12 of 17 Old 06-10-2010, 10:53 PM
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I've tried ground pepper, and it works well. But, it's only a short term fix. As far as alumaseal or bars leaks, I don't use either one. Bars leaks has small pellets in it that can plug up a TJ heater core. Alumaseal is somewhat better, but I prefer to have a radiator repaired before I use it.

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post #13 of 17 Old 06-10-2010, 11:38 PM
bjeeper23
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if you can spot the leak , and its inbetween the fins on the metal part.. jbweld. it can be thinned as well. ideal way would be to pull it out, lay it on its side, tape the bottom and pour it inbetween the fins. I ordered a 3 core al. radiator a few weeks ago, and needed a "quick fix" its still holding up just fine. I didnt even thin it, or take it out, just smushed it in and taped both sides so it didnt drool out lol also.. i took a screw driver and pushed out a few of the surrounding fins so i could be sure i got enough in there to completely surround the fin. the whole process took about 8 min max
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post #14 of 17 Old 06-11-2010, 08:52 AM
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post #15 of 17 Old 06-11-2010, 11:25 AM
stuff2c
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$110 dollars for a NEW one... why bother? Radiator Services, Radiator Installation, Pump Repair, Prater Radiator, Inc., Orlando, FL

Thanks to the interstate highway system... most people don't see nut'n in the USA.
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