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  #1  
Old 05-24-2009, 05:54 PM
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Default JB Weld on cracked radiator???

So I was going down the road yesterday and saw steam coming from the hood so I pulled over and there was no coolant in my reservoir so I got some water and antifreeze at the gas station, put it in and after a while I noticed I have a crack at the top of the radiator. It's VERY small but it's still a crack, on the plastic part of the radiator. I would def just like to replace it with an aluminum radiator but don't have the money right now, so has anyone fixed a crack like this with JB weld or anything of the sort with positive results? A few people told me to go have it welded, but it's PLASTIC.
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Old 05-24-2009, 05:58 PM
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it worked for me, just do it right tho, and when you put it on, spread it well over the crack.
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Old 05-24-2009, 06:09 PM
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You can use jb weld. Like was said, clean it well, and I'd also scuff it up a little. Use this as
a temporary fix until you can get a new or upgraded radiator.
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Old 05-24-2009, 10:28 PM
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Mine did the EXACT same thing...let me guess, it only started to steam when sitting at a light or stopped in traffic? Went straight home and replaced it with a known good unit. JB should ONLY be VERY temp fix.
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Old 05-25-2009, 12:31 AM
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Jb weld should be temporary fix. It will crack and recrack again....do it for now and get another radiator. U dont want a blown head gasket or worse buying a new engine.
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Old 05-25-2009, 09:52 AM
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yeah I know it's temp fix but how temporary? How long have you guys rode around on the repaired radiators? And I also heard JB weld may not work because it's plastic, I know you say rough it up so that it will bond better, but what about epoxy putty? I know it sticks to plastic better. And I'm only looking to get a fix so that I can mainly get to work and back and leave it at home beyond that until I can afford a new one, work is only about 2-3 miles one way. I'm planning on saving to get an aluminum one such as koyo/mishimoto etc., so that it can be welded if this ever happens again, if everybody who owns these OEM POS plastic top radiators have a problem with them eventually cracking I'm not going to waste my time/money with buying another one.
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Old 05-25-2009, 04:47 PM
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my hatch started leakin down towards the bottom, i used some of that putty stuff you get a lowes, its like the mighty putty you see on tv but cheaper, its over with the pluming department, i did not clean shit just got a big wad rolled up an put it on there an has worked fine for me that was a good 10 months ago,
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Old 05-25-2009, 04:52 PM
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i think epoxy would work too
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Old 05-25-2009, 04:56 PM
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i personally used the autozone radiator patch on my supra like 5 months ago and its still holding lol
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Old 05-25-2009, 05:02 PM
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Quote:
Originally Posted by rspeed32003 View Post
i think epoxy would work too
yea my buddy had a 93 accord an the part of the rad that the upper hose goes on broke off an he used epoxy to put it back on it worked, when it started leakin he just got his 5 min epoxy out of his door an put some more on it, he did that for about a year an then sold the car
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