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Old 06-22-2014, 04:50 PM   #1
ADVill OP
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fixing small holes in coolant overflow bottle

Very small, above coolant level. Ideas? Doesn't really 'leak'. Doesn't boil out. Losses a little coolant over time, most likely from hard right turns, leaned over.
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ADVill screwed with this post 06-22-2014 at 04:56 PM
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Old 06-22-2014, 06:05 PM   #2
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JB Weld
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Old 06-22-2014, 06:48 PM   #3
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Thinking the bottle will flex and the jb weld won't
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Old 06-22-2014, 06:52 PM   #4
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Sealall

http://www.eclecticproducts.com/sealall.htm

Just clean with TSP then sand the area before applying. Use a plastic patch if you want with the glue
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Old 06-22-2014, 07:09 PM   #5
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May try that. Thanks.
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Old 06-23-2014, 05:19 AM   #6
johnno950
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my se cracked on the high level mark,i used liquid steel 2 part putty to seal it,worked a treat,i would of replaced the overflow bottle if leak was from base surface.
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Old 06-23-2014, 08:10 AM   #7
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Probably the easiest and most reliable fix is to just replace it. Surely it's not that expensive? Or do you just need a solution now?

I'd try common liquid Cyanoacrylate (super-glue), mixed with bicarbonate of soda. Yes, sounds bizarre, but it is remarkably effective at making repairs on semi-rigid plastics. Liquid glue works better than gel types.

The tank must be super clean to ensure a decent bond, although the same's true for pretty much any adhesive. After cleaning with a solvent of your choice, coat the area you want to repair with a thick layer of super-glue. Sprinkle with bicarb, another layer of glue, another layer of bicarb, building up the layers until the hole is filled.

It works and lasts well, and is almost free.

Cheers... Paul
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Old 06-23-2014, 08:49 AM   #8
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Quote:
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Losses a little coolant over time, most likely from hard right turns, leaned over.
When in turns, liquids stay pretty much orthogonal to the axis of the bike. So coolant doesn't change level inside the overflow walls.
Cheers.
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Old 06-23-2014, 12:37 PM   #9
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Guessing I need to get a degree in hydrodynamics...
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Old 06-27-2014, 02:19 PM   #10
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Isn't that tank made of polyethylene? I've only heard about specialized 'surface' adhesives (solvent types won't work on the stuff) or hot-air welding for repairs.
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Old 06-27-2014, 02:55 PM   #11
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Part Number: 60035065000
Description: WATER EXPANSION TANK 03
Retail: $34.99
Your Price: $33.24 (5% discount)

Hardly worth the risk of a repair failing?
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Old 06-27-2014, 03:28 PM   #12
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Part Number: 60035065000
Description: WATER EXPANSION TANK 03
Retail: $34.99
Your Price: $33.24 (5% discount)

Hardly worth the risk of a repair failing?
That is certainly THE fix but it doesn't leak. Filled it about 3,000 miles ago and that is the level now.
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Old 06-27-2014, 04:00 PM   #13
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That is certainly THE fix but it doesn't leak. Filled it about 3,000 miles ago and that is the level now.
What if the crack gets bigger, hmm?


Duct tape would be the po' man's fix. The kind that has the stronger adhesive. But they're cheap enough so I'd just replace it outright and be done with it. Pretty much same take as on keener's radiator leak issue.
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Old 06-27-2014, 08:22 PM   #14
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Seems to work:



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Old 06-28-2014, 10:39 PM   #15
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It should be made from high density polyethylene. The only thing that reliably sticks to polyethylene is more polyethylene ( worked in plastic fabrication for a few years). Hot glue as a filler and a hot butter knife to smear it around will solve the problem. I have patched bigger holes on tanks with that system.

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