Coolant leak - Wrist Twisters
 
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post #1 of 30 Old 05-31-2010, 09:58 AM Thread Starter
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Coolant leak

So it's finally happened to my 919, the radiator guard appears to have worn through the aluminum on the bottom front right side(brake side) and I have a puddle of antifreeze below my bike. The hole is pretty small... Does anyone have any recommendations for a repair solution??

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post #2 of 30 Old 05-31-2010, 10:08 AM
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JB Weld.

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post #3 of 30 Old 05-31-2010, 10:35 AM
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Quote:
Originally Posted by beefsalad View Post
JB Weld.
+1.... drain the rad and remove it... scrape off the paint around the area and clean real well... then mix up some jb weld or jb kwik and let is work its way into the rad a lil. I bet it will hold quite well.

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post #4 of 30 Old 05-31-2010, 10:59 AM
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I would do that, too. I would make sure I push just a bit INTO the hole, so it will have a little peg of material to serve as a retention device. But, just a BIT. A baby-aspirin of a bit, not the entire bottle of aspirin!

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post #5 of 30 Old 05-31-2010, 12:24 PM
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photos needed. The stock radiator guards should not cause a problem. Maybe you don't have stock guards.

When I ride on a hot day, I often have a small puddle (maybe a few good drops worth) under mine. It comes from the overflow hose located under the bike near the rider (not passenger) pegs.

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post #6 of 30 Old 05-31-2010, 03:47 PM Thread Starter
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Here's the pics... you can barely see the hole with the naked eye..

http://i372.photobucket.com/albums/o.../Photo0134.jpg
http://i372.photobucket.com/albums/o.../Photo0132.jpg

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post #7 of 30 Old 05-31-2010, 04:16 PM
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ive Jb welded with good results but i wouldnt use it as a permanent fix by any means. Ive used it to get by in a pinch but i doubt it would hold. maybe maybe not, its a band aid. get a new radiator is the only right way. If you cant afford one (i understand) have it accually welded for a permanent repair.

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post #8 of 30 Old 05-31-2010, 04:50 PM
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JB Weld, if done correctly, is a solid fix. It will last and be as strong, if not stronger, than the original

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post #9 of 30 Old 05-31-2010, 05:22 PM
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JB Weld is great stuff no doubt but if it were me I would at least find a radiator shop or welder and have it braised( I think that is an option for alum., if not use te JB Weld)

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post #10 of 30 Old 05-31-2010, 06:19 PM
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I know a guy that used jbweld on his cbr600rr radiator and it worked a treat....i too thought it wouldnt work, but he never had any leaks once he repaired it.
Oh and i think good preperation is the key to it working!!!

http://i121.photobucket.com/albums/o222/woodyeee/IMAG0306.jpg
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post #11 of 30 Old 05-31-2010, 06:43 PM
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Drop an uncooked egg in the rad. It worked for Mythbusters on an old chevy rad. They put a screwdriver into the rad and had a stream coming out. Worked almost instantly.
I would go with the JB weld if anything.

Spoiler:

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post #12 of 30 Old 05-31-2010, 08:28 PM
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The radiator guard put a hole thru your radiator. For some sick reason, I find that kind of funny. sorry

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post #13 of 30 Old 06-01-2010, 03:16 AM
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Yep, that's a bit ironic.

To be 100% sure pull the radiator off and drop it into a specialist shop to repair. While it's off give those header pipes a good clean .....

Another option occurs to me - bore the hole out bigger and give it a 12mm thread then screw in a plumbing tap. Fill the radiator system with clean fresh water.
By doing this when you stop after a decent ride you'll be able to safely draw off a some nice hot water and make a tasty cup of coffee or tea. This could save you a fair bit of $ over time.

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post #14 of 30 Old 06-01-2010, 12:04 PM
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that damage looks like it's at least an eighth of an inch inboard of anything that the aluminum radiator "guard" contacts. it looks like there's a part of the story missing. that guard doesn't move around that much, and i don't think ANYONE in here has had that happen. or was i out sick that day?

1990-1992 Town Car in background of side pic?

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post #15 of 30 Old 06-01-2010, 12:18 PM
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Was it an aftermarket guard? I looked at my stock guard last night and it just clips on at the top and bottom. It's also plastic so I can't imagine it wearing through the aluminum.

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post #16 of 30 Old 06-01-2010, 04:05 PM
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plastic can DEFINITELY ruin aluminum (use a regular scotchbrite "zizz wheel" to clean an aluminum cylinder head gasket surface for proof) but stilll....something ELSE is going on there. i smell another "round-eye", non-Honda problem.

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post #17 of 30 Old 06-01-2010, 05:18 PM
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a rock might have flew up and hit it in just the right spot to puncture it, aluminum is a soft metal after all...

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post #18 of 30 Old 06-01-2010, 06:11 PM Thread Starter
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Bucky... It was a town car.. and I would guess you are close to the year. The rad protector is stock, and there is an almost exact duplicate knick on the right side of my rad.. I also have 2 others near the top on each side which are nowhere near as prominant.. The Rad is designed to go on one way... the top has a notch in it. I took a couple of pics of the worn area on the guard... It IS the fault.. The wear marks on the plastic correspond exactly to the wear points on the radiator. For those of you with a lot of miles, this may become an issue.. I have nearly 45k miles... If u don't believe me then take you'res off and look. I gotta feeling I am not the only one experiencing this phenomena. I wonder if there are any differences between model years for the guard design?

From the looks of the guard, the damage was done from horizontal stress rather that vertical...

You be the judges..

Here's the pics

http://i372.photobucket.com/albums/o.../Photo0139.jpg
http://i372.photobucket.com/albums/o.../Photo0138.jpg

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post #19 of 30 Old 06-01-2010, 07:04 PM Thread Starter
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Quote:
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rather that vertical...
rather then..

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post #20 of 30 Old 06-01-2010, 10:11 PM
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Weird - I'm going home to check on mine tonight!

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post #21 of 30 Old 06-01-2010, 10:31 PM
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karl - quick photo tip.

Be sure to center what you want to photograph, then depress the shutter button half way down to focus. Then you can move the camera and create the scene you want.

You're trying to take photos of these bits close up, and the camera is doing a great job of focusing 8 feet beyond your subject.

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post #22 of 30 Old 06-02-2010, 01:18 AM
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He's not insane....it took a bit of digging to find this post.

https://wristtwisters.com/naked-bikes...rs-beware.html

I almost had myself convinced that I had told myself a story about this problem, and the posters analysis of the root cause...but then I found it!

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post #23 of 30 Old 06-05-2010, 03:15 PM
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Checked mine and the paint has rubbed of the radiator in exactly the spot describes - I'm going to stick some headlight protector film over it. That should stop any further rubbage (love that word).

Thanks for the heads-up.

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post #24 of 30 Old 06-05-2010, 04:34 PM
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just checked mine and i can see a spot wearing thru the paint also.maybe we should all pitch in to buy you a new radiator thanks.looks like the four tabs that are rubbing stick out further than the rest,wonder what would happen if we trim them a little.

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post #25 of 30 Old 06-05-2010, 06:48 PM
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I think there is more to it than rubbing as well. My bike has 135 thousand Kms with no such leak. When I went to check mine the bottom right part of my gourd wasn't even clipped on right. Could be a fluke on his bike.

Spoiler:

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post #26 of 30 Old 06-05-2010, 07:44 PM
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going to check...Well I am back and the only place it touches is where the fin from the plastic cover comes into contact with the four corners.thats a lot of metal to rub away.i have no damage .a little paint rub but thats it .

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post #27 of 30 Old 06-06-2010, 02:37 AM
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And you guys all thought I was crazy..... I'm glad in a way that the problem did reveal itself to others.. but sad that it has happened... JB weld, or that quicksteel putty stuff works wonders... The quicksteel will probably last longer, I've got a gob of that sealing and holding a 4mm bung in place on a turbo outlet, (intake side not exhaust) been there for 2 years lol.

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post #28 of 30 Old 06-06-2010, 05:40 AM
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get out the torch and tin the shit out of it.clean it up new paint...
when i talk to my welder the discussion is going to be about a new guard..one piece from side guard to side guard .

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post #29 of 30 Old 06-06-2010, 06:23 AM
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Just checked mine, Notta, not even rub marks. I only have 6000 on it.

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post #30 of 30 Old 07-20-2013, 12:46 PM
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+1 radiator leak from guard rub.

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