Wheels [JB] Welding some double wall aluminum rims??

Why wouldn't I keep fooling with it??

The bike shop won't be open for another two days!!!

I might as well give it the second layer tomorrow, since I've still got plenty of JB Weld left, and then give it a test ride on Monday before making my mind up... don't ya think?

10 minutes per day for FREE -vs- 3 days or so of waiting, in addition to shelling out ~$150??

Hmm.....
 
I mean.... as soon as I use the air compressor on the tire, I'll be able to see how the rim handles it.

I'll be able to see the result before even installing the wheel this time!! Either it works, or it doesn't!
 
Make sure you spread a good layer of penut butter over the jb weld area...Not the cheep stuff..use Skippy .... a little scotch tape wont hurt either
 
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Make sure you spread a good layer of penut butter over the jb weld area...Not the cheep stuff..use Skippy .... a little scotch tape wont hurt either
Hah... OK!! :rolleyes:

did you stop drill the crack?
No I did not. Didn't think about that, and that'd be too much work for me since someone recently "misplaced" my screwgun.

Soo... I've ridden approximately 7 miles over many bumps, and it actually seems to be holding!!!

I actually put two extra layers on yesterday. One layer near the center of the crack, then expanding an eighth of the rim in one direction, because I could see a hairline crack in that direction. I checked it last night and saw that there was actually a hairline crack in the opposite direction, so I put another layer on THAT eighth of the rim (opposite direction). Soo... basically, the inside of a quarter of my rim has a good bit of jb weld at the first "step" on the inside of the rim, which just so happens top be where the crack is.

Anyway.... two days of drying, two whole layers, covering an eighth of the rim... seems to be holding!!

If it can make it this far, I think it should be able to last a few months, at minimum... but I don't know if it will last FOREVER!!! It will be interesting to see how permanent this will actually be, but 7 miles at 20mph with over 80psi in the tires... is looking pretty good, IMHO.

P.S. - thanks for the idea that jb weld would actually hold skyliner. Think it was you that talked about using it on an airplane!!
 
Yes, used it on a 4500 hp helicopter turbine that had a cracked engine case. It was an illegal repair but got us flying and completed our mission.....we did, however stop drill the crack to relieve pressures before using jb weld
 
I think this should hold for a good, long time!!

Made it back. So 14 miles so far. No problems at all. I'm only applying about 33% power to the rear brakes and about 66% to the front brakes. Need to tighten or replace those front brakes too, actually.

But the next time I take the wheel off, I'll try to remember to take a picture.

Nothing much to it, really, tho. Just have to put it on the inside quarter of the rim if you're smart. :unsure: :helmet:

Also, makes sure to mix EVENLY and CONSISTENTLY, plus LET DRY FOR 1 DAY PER LAYER.

And I wouldn't recommend this for everybody, either. I'm slightly crazy. But you've heard Skyliner's story, also!!
 
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Yes, used it on a 4500 hp helicopter turbine that had a cracked engine case. It was an illegal repair but got us flying and completed our mission.....we did, however stop drill the crack to relieve pressures before using jb weld

Glue on a cracked case is plugging a pesky, leaky hole.
Strength of the casing was relayed to the remaining good metal.
Would you use glue on a cracked rotor?
Nevermind... Don't answer that.

A wheel rim is THE critical element of a bicycle.
Glue is NOT an effective repair. Never has been, never will.
I would be suspect of a weld. The effect upon the HAZ could not be determined without Xtreme test equipment.

It's just a bad idea, no matter how much hot air you want to blow at it.
rc
 
Rustycase sums it all up ..very well put..Wear your helmet Sparky ..its been over one year since my front wheel collapsed (it was not cracked or damaged just cheep Chinese aluminum (al+pot metal)...Traumatic Brain Injury , 20 days in a coma , still have problems and issues
 
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