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Old 06-26-2011, 12:22 AM
 
1,669 posts, read 2,566,231 times
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Default Pin hole in radiator, fixes?

I've got a small pinhole on the top of my radiator. What are the best fixes for that?
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Old 06-26-2011, 08:55 AM
 
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Would you like to let us know if this is a plastic, aluminum, or brass radiator?
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Old 06-26-2011, 08:57 AM
 
Location: Mayberry
14,562 posts, read 3,522,923 times
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JB weld will fix all 3
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Old 06-26-2011, 10:46 AM
Status: "Watching 49ers" (set 26 days ago)
 
Location: San Francisco
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Put 2 teaspoons of black pepper in your anti-freeze.
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Old 06-26-2011, 11:28 AM
 
Location: Columbia, California
6,536 posts, read 14,478,128 times
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Quote:
Originally Posted by The Continental View Post
I've got a small pinhole on the top of my radiator. What are the best fixes for that?
Ok, best fix! Have a radiator shop pressure test and repair it.
A lot of cheap, easy fixes but they are all temporary. Where you have one small pin hole there are likely others.
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Old 06-26-2011, 05:54 PM
 
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Quote:
Originally Posted by sunsprit View Post
Would you like to let us know if this is a plastic, aluminum, or brass radiator?
yup....
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Old 06-26-2011, 08:01 PM
 
Location: Inland Empire
2,295 posts, read 1,909,214 times
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Doesn't matter what it's made out of, take it to a radiator shop and have it fixed correctly. If it leaks it could probably use a cleaning and rodding. Do it right and forget it for a couple of years...!!
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Old 06-27-2011, 12:22 PM
 
Location: Eastern Washington
8,785 posts, read 22,159,751 times
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Something to think about - if you have a pinhole in a metal radiator, it has corroded through in one place, probably it's thin in other places as well.

Getting a radiator from a boneyard, taking it to a good radiator shop, having them refurbish it, and then either DIY install or have them do it can be a cost-effective and low down time way to do this.

At least replacing the upper radiator hose when you do the radiator is good cheap insurance - sometimes the twisting and pulling you do to get the hose loose from the radiator damages it enough that it fails soon after.

Do yourself a favor and use a good quality oriented antifreeze and mix it with distilled (or deionized) water, this will keep corrosion down in future.
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Old 06-27-2011, 07:18 PM
 
19,115 posts, read 10,974,172 times
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Quote:
Originally Posted by Nayabone View Post
Doesn't matter what it's made out of, take it to a radiator shop and have it fixed correctly. If it leaks it could probably use a cleaning and rodding. Do it right and forget it for a couple of years...!!
Chances are this rad isn't anything you can take apart to rod out. It's likely crip sealed a one time shot. No fix possible, unless it is a brass core with soldered on tanks.

So epoxie could save the day and a few bucks for awhile. Getting the coolant off the pin hole is a key. But then when there is one pin hole surely soon there will be another.

We live in the age of Dixie Cup Cars. Junk it buy another junk that and buy the first back as another new car

I get the idea this is an alloy rad and it was simply turning back into dirt. (Boxite)
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Old 06-28-2011, 09:58 AM
 
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Should be brass, it is in a 70s Mopar product. It is just a small pinhole towards a top corner.
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