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Radiator fix tips
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Radiator fix tips - August 2, 2013, 06:14 PM

Hey guys, I'm venturing into uncharted waters for myself by attempting to fix a small leak in my radiator. RileysDad suggested I use JB Weld to fix it so that's what I'm going to try; if it fails I blame him!

Anyway, the leak is pretty small but is in the core. I saw a youtube video where it looked like a guy smeared the stuff over the leaking area (see video; only a minute long) and let it cure. Is that the right way to do it, any downside to it? Looks easy enough, and I don't want to overthink it, but would appreciate any tips before starting down the wrong path. Thanks!




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August 2, 2013, 06:16 PM

Don't smear... Clean the area very well, find EXACTLY where it leaks and cover that spot only. A JB weld patch can last 2 hours or 2 years. There are businesses out there that can repair it for you, but honestly the easiest way is to find a good used unit. Jerry-rig it for now and find a good used one on ebay for when it starts pissing again.

That's my 2 cents.


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August 2, 2013, 06:49 PM

Make sure to clean the area with brake clean and use a wire brush to score the area for the jb weld to adhere to.


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August 3, 2013, 12:28 PM

Personally? I'd mark the area, then use Alumiseal first. That should fill the inside. Let it set overnight. Then come along and use the JB Weld as dewscribed by others on here to seal it from the outside.

And then I'd get online and purchase a backup set of radiators just in case.

But that's me. I'm OCD about spares ya know.



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August 3, 2013, 02:02 PM

Well I just finished applying the jb weld. Used brakleen and a wire brush to prep it; mixed the epoxy and applied. I used a retractable razor to mix and apply; looks decent to me; now it can set for 24 hours; will see how well it does. Unfortunately I saw a second leak on the opposite side as I was prepping it; figured it gave me a second chance to practice with this stuff but I'll be looking for another radiator just in case this doesn't work. Thanks for the tips.


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August 3, 2013, 02:20 PM

pick up some alumiseal at a car place. (Advanced auto, trak auto, etc.) That can let you continue to ride if it starts leaking on the trails. We've used it before in COlorado when a buddy tweaked his radiator and it leaked. He couldn't get a replacement for several days, so this was the interim fix. The interim fix that lasted until he got home to replace the radiator. I was very impressed at how well it worked.

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August 3, 2013, 07:20 PM

Wish I had seen this earlier. I have twice soldered radiators closed. Small butane torch and and solder are now always at the track with me.


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August 4, 2013, 11:26 AM

Quote:
Originally Posted by The Evil Twin View Post
Wish I had seen this earlier. I have twice soldered radiators closed. Small butane torch and and solder are now always at the track with me.
No worries, I needed to get some JB weld experience. I'll hit you up next time!


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August 4, 2013, 11:28 AM

Next question - how can I confirm if a radiator from an '03 will work on my '05? I've looked at part numbers on hondapartshouse.com; the numbers for each year match but I've never used them so I'm a bit hesitant to call it good at this point. Any better places to check???


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August 4, 2013, 02:31 PM

Well it was a good try but no luck. Filled it up with water and one hole leaked again, though a trickle. The other seemed to hold but a new leak popped up right next to it. Looks like I'm getting a new radiator...


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August 4, 2013, 04:58 PM

Alumiseal. For under $5 it's worth a try. Like I said before, my buddy threw it in and rode for 6 days of serious offroad riding in the Colorado mountains with no problems and no leaks.


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August 4, 2013, 05:15 PM

Quote:
Originally Posted by RADAR Magnet View Post
Hey guys, I'm venturing into uncharted waters for myself by attempting to fix a small leak in my radiator. RileysDad suggested I use JB Weld to fix it so that's what I'm going to try; if it fails I blame him!

Anyway, the leak is pretty small but is in the core. I saw a youtube video where it looked like a guy smeared the stuff over the leaking area (see video; only a minute long) and let it cure. Is that the right way to do it, any downside to it? Looks easy enough, and I don't want to overthink it, but would appreciate any tips before starting down the wrong path. Thanks!


JB Weld IT! RADIATOR for a Heater core! Easy Cheap FIX! - YouTube
It's always my fault.

Sounds like you either didn't cover the entire hole or didn't let it set up long enough. It can tricky to patch the entire leak on a radiator cuz of all the fins but 99% of the time it works. If you never multiple leaks, I'd definitely recommend a new rad though cuz the last thing you want is to spill coolant everywhere for your back your to slip on.


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August 4, 2013, 06:23 PM

I'd def replace a leaking rad on a trackbike.


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August 4, 2013, 06:49 PM

Quote:
Originally Posted by Triple X View Post
I'd def replace a leaking rad on a trackbike.

Sorry, I was in dirt mode.

Track = replace it or have professionally soldered.

Dirt = patch with everything including bubble gum.




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August 4, 2013, 09:01 PM

Quote:
Originally Posted by RileysDad View Post
It's always my fault.

I'd definitely recommend a new rad though cuz the last thing you want is to spill coolant everywhere for your back your to slip on.
Yep.

Quote:
Originally Posted by Triple X View Post
I'd def replace a leaking rad on a trackbike.
Yep.

Quote:
Originally Posted by MudDawg View Post
Track = replace it or have professionally soldered.
Yep.


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