fixing a radiator leak - Wrist Twisters
 
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post #1 of 7 Old 08-06-2012, 07:12 AM Thread Starter
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fixing a radiator leak

Does anyone have some words of wisdom regarding the use of automotive radiator leak stoppers? I developed a small leak near the end of a 400 mile ride last week, and have to do something to get riding again. This is my 2005 919.

I'll also be calling around today to see if a local shop will attempt to fix it. I'm too cheap to buy a new one without trying a few other things first.

Thanks for sharing your wisdom!

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post #2 of 7 Old 08-06-2012, 07:28 AM
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Where is the leak? If it's a pin hole on the side you could use J-B Weld or similar epoxy.

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post #3 of 7 Old 08-06-2012, 08:09 AM
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I'm inclined to go with a professional radiator repair or replace the whole unit.



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post #4 of 7 Old 08-06-2012, 10:35 AM Thread Starter
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Quote:
Originally Posted by rmb View Post
Where is the leak? If it's a pin hole on the side you could use J-B Weld or similar epoxy.
Its coming out of the right edge ... somewhere under that u-shaped metal ... I can't see exactly where it is. I don't see how that can be popped off. I could see perhaps turning the whole radiator on its edge and pouring some runny epoxy in there.... Thanks.

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post #5 of 7 Old 08-06-2012, 02:48 PM
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Have the same problem with my 2002. my shop used a product called "quikaluminum" after J-B weld didn't work. That was done on Friday. I've done about 300 kilometres (180 miles) in city and highway since then and leak has not recurred (yet?). Anyway, so far so good.

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post #6 of 7 Old 08-07-2012, 09:18 PM
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I would NOT suggest putting anything into the coolant system like Bar's leak or the other stuff that typically does more harm than good.

The day prior to trading my Shadow for the 919, I couldn't help but catch a whiff of coolant. I parked the bike and when I returned to clean up the bike, I found a few drops of coolant. Crap, right before I'm about to trade the Shadow off!

So, I pulled the radiator, sandblasted the suspected area of the leak, and slathered structural epoxy (3M's version of JB Weld) in and around the area. Let dry overnight, then repaint satin black. Good as new! I stay in contact with the new owner and he hasn't had a single problem out of the bike

Biggest thing is decontaminating the area around the leak to allow the JB Weld to bond onto the aluminum. If it's a tiny pinhole I don't think a new radiator is necessary, especially since I don't trust the replacements offered on eBay and going new OEM is crazy expensive!

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post #7 of 7 Old 08-09-2012, 09:02 AM Thread Starter
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Quote:
Originally Posted by filipinoaviator View Post
I would NOT suggest putting anything into the coolant system like Bar's leak or the other stuff that typically does more harm than good.

The day prior to trading my Shadow for the 919, I couldn't help but catch a whiff of coolant. I parked the bike and when I returned to clean up the bike, I found a few drops of coolant. Crap, right before I'm about to trade the Shadow off!

So, I pulled the radiator, sandblasted the suspected area of the leak, and slathered structural epoxy (3M's version of JB Weld) in and around the area. Let dry overnight, then repaint satin black. Good as new! I stay in contact with the new owner and he hasn't had a single problem out of the bike

Biggest thing is decontaminating the area around the leak to allow the JB Weld to bond onto the aluminum. If it's a tiny pinhole I don't think a new radiator is necessary, especially since I don't trust the replacements offered on eBay and going new OEM is crazy expensive!
Thanks for sharing your experience ... but I have a really hard time seeing any sort of epoxy getting up against the hole. As I said earlier, its way off on the edge. I've already missed 7 riding days, so call me crazy, but an OEM replacement is on its way.

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