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Author Topic: JB Weld  (Read 914 times)

Offline david beazley

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JB Weld
« on: November 20, 2009, 02:14:13 PM »
I have a Norvel .061 with the 2 front mounting lug holes busted out after a nose in.  I am contemplating using JB Weld on them.  Has anyone had any experience or luck repairing mounting lugs with JB-Weld?
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Alan Hahn

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Re: JB Weld
« Reply #1 on: November 20, 2009, 04:02:26 PM »
If I am imagining this correctly, I don't think it will work. JB Weld just isn't strong enough to provide a mounting structure. It will probably just crack off where it connects to the remaining part of the lug.

What might work---and I am really unsure of this-- is to use some of that aluminum welding rod (or whatever it is!) and braze on an extension that you can then shape with a file and redrill the mounting holes. I have seen commercials which show them doing what you are describing--but on a larger piece. But like I said, in a commercial/infomercial, everything looks easy and works great!
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Offline George

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Re: JB Weld
« Reply #2 on: November 20, 2009, 08:59:03 PM »
Three brands I have heard of is alumaweld, alumalloy, and HTS-2000. Of these, I have used alumaweld purchased from Eastwood.

If you go this route, make sure you practice on something else before repairing the engine.

George
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Offline goozgog

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Re: JB Weld
« Reply #3 on: November 21, 2009, 04:56:30 AM »
I have tried this on the mounting
lugs of a L.A. .25.
  I left the break rough and cleaned
it well beforehand. The J.B. weld
sanded down smoothly and looked great,
but it only lasted a few flights.

FWIW - Morgan
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Keith Morgan

Offline dssit

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Re: JB Weld
« Reply #4 on: November 21, 2009, 06:51:17 AM »
I made two sub mounts of 047 steel drilled to match originale holes. filled the voids with jb weld. I forgot the steel goes on top.
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Offline dssit

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Re: JB Weld
« Reply #5 on: November 21, 2009, 06:55:43 AM »
I spelled original wrong and forgot to tell you the steel goes on top of both holes front and gack.
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Offline dssit

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Re: JB Weld
« Reply #6 on: November 23, 2009, 09:55:02 AM »
david. did any of the ideas help or were you to busy to read them.
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Offline david beazley

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Re: JB Weld
« Reply #7 on: November 25, 2009, 06:18:20 AM »
Thanks for the replies. 
Work has kept me too busy for modeling lately, but I have figured out that in today's world A job is better than NO job so I am intending to hang on to mine as long as possible.
I am going to try your suggestion of bucking up the lugs with another piece of metal and then trying to JB Weld it,  I will post results when I do it.
Dave
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