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  #1  
Old 01-09-2017, 05:58 AM
69coupe 69coupe is offline
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leaking diff tube

I have a small leak on a weld on a axle tube for a nine inch diff. Does not appear to make any difference to the oil level but is annoying. Not worth the effort of removing the diff to re weld
Anyway to put something on the weld to stop the leak externally after a good clean ?
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  #2  
Old 01-09-2017, 06:39 AM
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BlackoutSteve BlackoutSteve is offline
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Had the same issue on my old 9". I rewelded it.
Unless you can clean inside the crack, good luck with having any sealer do anything.
Me, I'd create a vacuum in the housing through the vent and use that to suck brake cleaner through and wash the crack, then suck in Permatex.

But that's a sh!t BandAid job that will only contaminate for future welding.

The real problem is that crack will contunue around the weld until the housing fails.
The crack in mine had grown to about 2" in length from memory.
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Old 01-09-2017, 08:48 PM
Geoff 4 Geoff 4 is offline
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Make sure the diff has a working vent to vent the pressure as the oil heats up & expands. Once you have a vent that is working properly, then it is only gravity you are sealing [ if the leak is below oil level ]. Drain the oil if the hole is below the oil level. Remove any paint, roughen with sandpaper. Then clean with petrol, & a final wipe over with lacquer thinner. Smear a generous portion of gorilla snot [ silicon, acetic acid cure ] over the area & leave overnight. As Steve says, if you have a crack, & not a hole, then it is likely to grow & fail & needs welding.
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Old 07-09-2017, 07:09 PM
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Quote:
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& a final wipe over with lacquer thinner. Smear a generous portion of gorilla snot [ silicon, acetic acid cure ] over the area & leave overnight.
"Gorilla snot" has no place either in or on your diff(unless you're sticking fabric to it), It's obvious Geoff that you have no idea what "Gorilla snot" is

If you're going to be dishing out remedies/fixes, at least do your homework.
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Old 07-09-2017, 07:31 PM
Geoff 4 Geoff 4 is offline
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Rodent,
You need to hone your reading skills. Your sarcasm skills are more than adequate....& need no further work. Read what I said & the conditions I attached to the use of GS.
I have been using snot longer probably than you have been on the planet.

And to the OP, what I said will fix your problem.
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Old 07-09-2017, 07:37 PM
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I have been using snot longer probably than you have been on the planet.
Kock snot and Gorilla snot are not the same thing.

Quote:
Originally Posted by Geoff 4 View Post
And to the OP, what I said will fix your problem.
No it won't, your reply to the "OP" is a poor roadside fix at best......keep trying....
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Old 07-09-2017, 07:39 PM
Geoff 4 Geoff 4 is offline
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And further to the comments of this dope Rodent/Jim whatever your name is:

I use, as do millions worldwide, silicon [ GS ] to seal axle seals, diff covers, diff centres, pinion seals etc in diffs.

I'll bet my skills against Rodents any day of the week, 24/7.

---------- Post added at 07:39 PM ---------- Previous post was at 07:37 PM ----------

Prove it won't, big mouth.
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Old 07-09-2017, 07:44 PM
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I'll bet my skills against Rodents any day of the week, 24/7.[COLOR="Silver"]
I am shaking in my Moccasins
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Old 07-09-2017, 07:45 PM
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Ah, yes, you would know all about Gorilla snot.....
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Old 07-09-2017, 07:47 PM
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Ah, yes, you would know all about Gorilla snot.....
^^^^^Correct
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Old 07-09-2017, 07:55 PM
Geoff 4 Geoff 4 is offline
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Rodent,
Why don't we call a truce? I won't criticise you, & you don't criticise me.
I don't know everything, never claimed too, but I have been doing this for 50+ years & have hopefully learned a few things....which I can pass onto others.
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Old 07-09-2017, 08:05 PM
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Rodent,
Why don't we call a truce? I won't criticise you, & you don't criticise me.
I don't know everything, never claimed too, but I have been doing this for 50+ years & have hopefully learned a few things....which I can pass onto others.

I'm all good here

When you "know" what you're talking about, chime in
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Old 07-09-2017, 08:57 PM
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Am I missing something?

Gorilla Snot is Gasket Sealer.
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Old 07-09-2017, 09:05 PM
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For the uninformed, Gorilla snot=Yellow upholstery glue(like Kwik Grip).
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Old 08-09-2017, 10:18 AM
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Though painful as it seems at the time pulling the diff striping it down getting it welded up and freshening it up at the same time would be the best solution for the long term imho. I'm not doubting the other fixes will work and there is a whole industry dedicated to it but the crux of it is for how long.
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