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#390931 - 06/19/17 12:58 PM Rear axle leak
MoonshineMachine Offline
Shade Tree Mechanic

Registered: 11/09/16
Posts: 44
Loc: Eastern NC
So after 8 months of mechanical restoration, I drove my 1941 Master Deluxe for the third time ever, and first time in a long time. I put about 80 miles on it, and then brought it home to investigate all of the gremlins. One particularly frustrating gremlin is gear oil which was seeping from the left rear axle.

I had replaced the oakie bushing and the axle seals. any thoughts on why I may be having an issue? The leak appears to be coming from the little drain hole in the axle. I checked the fluid level in the rear and it is slightly low (makes me think it is not the oakie). Is it likely that I tore the axle seal on installation?

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#390936 - 06/19/17 01:31 PM Re: Rear axle leak [Re: MoonshineMachine]
Chev Nut Offline




Registered: 01/08/02
Posts: 24245
Loc: West Allis,Wi.
..yes...or improperly installed like backwards.
_________________________
Chevgene

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#390943 - 06/19/17 02:47 PM Re: Rear axle leak [Re: Chev Nut]
MoonshineMachine Offline
Shade Tree Mechanic

Registered: 11/09/16
Posts: 44
Loc: Eastern NC
How can I tell if I installed backwards? Should the lip of the seal bevel inwards or outwards? Which side should the part with the little spring be on?

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#390944 - 06/19/17 02:53 PM Re: Rear axle leak [Re: MoonshineMachine]
Chev Nut Offline




Registered: 01/08/02
Posts: 24245
Loc: West Allis,Wi.
The lip always goes towards the gear oil.
_________________________
Chevgene

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#390991 - 06/20/17 08:44 AM Re: Rear axle leak [Re: MoonshineMachine]
tonyw Offline




Registered: 05/23/02
Posts: 3995
Loc: Goulburn Australia
Like Gene aid the lip goes to the oil. If you can see a spring it also should go to the oil.
Tony
_________________________
1938 1/2 ton Hope to drive it before I retire

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#391276 - 06/26/17 12:41 PM Re: Rear axle leak [Re: tonyw]
47Aero Offline
Shade Tree Mechanic

Registered: 01/21/13
Posts: 94
Loc: Adelaide , South Australia
It is possible that the leak is not on the axle-seal joint, but where the seal outside sits in the axle. I have had one where there was a score line on the inside surface of the axle, and oil was weeping past it and dripping out the "vent" hole. Took the seal out, cleaned up the scratch with 1200grit, degreased the surface and re-installed the seal with a smear of silicon between the seal and the housing. So far so good.

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#391361 - 06/27/17 12:14 PM Re: Rear axle leak [Re: 47Aero]
MoonshineMachine Offline
Shade Tree Mechanic

Registered: 11/09/16
Posts: 44
Loc: Eastern NC
Now that I have the axle out again, I think that is my issue. My seal looks perfect and is installed correctly. I have a deep groove in the axle shaft from where the old seal must have ridden. I am now tempted to try and install the seal just a little deeper to get it off of the groove. Does anybody know if somebody sells a sleeve kit for these axles? I have even thought about trying to find a different brand of seal so it will land in a different spot. Or another option I'm considering is JB Weld to fill the groove, then sand it finishing with 1200 grit to get a new smooth surface.

Any thoughts?


Edited by MoonshineMachine (06/27/17 12:14 PM)

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#391363 - 06/27/17 03:36 PM Re: Rear axle leak [Re: MoonshineMachine]
Bowtie Bob Offline

pumpjockey

Registered: 10/26/02
Posts: 990
Loc: Rochester, N.Y.
If you have a bearing supplier locally, get the O.D. measurement of the shaft, the length needed to fix and the seal number and ask the supplier for a "Redi-Sleeve". If no supplier handy, google "seal wear sleeve" and you'll find a host of them available in all sizes.

The sleeves are thin walled cylindrical stainless steel sleeve, which press on and cover the damaged area where the seal rides. I've used them often to repair worn or damaged surfaces on crankshaft snouts, transmission input shafts and axle seal journals. They work great - easy fix.


Edited by Bowtie Bob (06/27/17 03:42 PM)
_________________________
-BowTie Bob

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#391576 - 07/01/17 06:02 PM Re: Rear axle leak [Re: MoonshineMachine]
wannchev Offline
Shade Tree Mechanic

Registered: 07/09/09
Posts: 152
Loc: south africa
I would check that the rear axle vent cap is still loose.The fitting cannot be removed but the cap should turn and have some play.

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