Transfer case leak at e-brake

[Ben Dover]

If the inner seal is effective, the outer may suffer from dry friction, why not machine your flange, install a Redi-Sleeve or a new flange?

[artificer]

There are usually problems expressed by those who rarely get their hands dirty & have never tried certain repairs to overcome things like leaks.
Nowhere in this thread has the issue of a grooved [worn] output flange been raised, so why would one be fitting a speedi sleeve?

You can take it from me that two neoprene type seals installed properly on a greased flange [with sealant on the splines & torqued adequately] will do the job & while we are @ it this seal [sorry I don't know who's photo] WILL lLEAK

The reason it will leak is whoever fitted it did so using a pin punch or drift & the seal housing is clearly distorted, as will the the sealing edge that is meant to be perfectly round.

Here is my suggestion for fitting a seal using a simple expensive over the counter tool.

[Ben Dover]

Best to start off by inspecting the machined portion of the Companion Flange to see what is causing the leak, if it is grooved, it can be repaired by machining, installing a Redi Sleeve or by replacing the flange. If it is not grooved, a new seal is usually sufficient.

[Michael Browne]

Hi Gusti,

John:
What I am trying to understand: 2 seals "back to back"?
The design of the seal wants the lip of the seal go toward the oil to avoid leaking oil through the seal, did I get that right?
So why back to back?

I would understand it this way:
Once the oil has passed the first (weak or damaged) seal, it needs to be stopped by the lip of the second seal.
Why not two times back to the outside and lips to the inside?

Pls let me understand!

You understand it correctly Gusti, the 2 seal lips toward the oil is the correct way. But be sure the outer seal is lubricated well with light grease. What you would call on your side of the Atlantic a Tandem fitting arrangement, or backed up. Back to back is back to back, not backed up

[echelon1]

Back to back is translated to Flemish as one lip to the oilbath and the other lip away from the oilbath...
Backed up is translated as one reserve for as the first one fails, hence both seals lips to the oilbath.
Anyway the message came through, everybody meant both lips to the oilbath and this is the corect way...if lubrication is added between both seals to lubricate the lip from the "reserve" seal.
I think that the sheet metal dust cap from the yoke needs to be removed to give way to the back up seal?

Gindi.

[artificer]

WOW....
Gindi is some one who has done this more than once, so take notice guys ....wonderful to see another experienced person who has [not self serving] dirty hands....best JG.

[Ben Dover]

Removing the dust shield from the companion flange invites dirt and grime to enter the seal and caus excess wear on the precision machined seal surface.
There are Mechanics, and there are "mechanics". :wink:
I never did subscribe to "throwing away" parts in order to improve the functioning of a Jeep, my customers would not like that. :wink: :wink:

[echelon1]

Hello Ben Dover,
Actually the modification removes a useless dust shield and AD a usefull seal.Wink.

Gindi.

[Ben Dover]

Gindi, Gindi, Gindi, you are on a collision course with the Jeep Police. :wink: :wink:

[echelon1]

Gindi, Gindi, Gindi, you are on a collision course with the Jeep Police.

I tought about that before doing the mod, and am lucky enough that the modification can not be seen.
Same for the ball bearing I have installed in the flywheel where I removed the bushing.
BTW, the back up seal has a dust lip.

Cheers,
Gindi.

[Gustl]

Appreciate to learn from you all, guys!

In Austria we miss interpret John´s back to back completely. But now I got it.

Dustshield:
Is that a press fit to the yoke?
Can I remove it with my shop press?

[echelon1]

Yes, it is easilly removed.
It needs to be removed when the external brake drum has to come off.
It keeps the bolts for the prop shaft in place.

Cheers,
Gindi.

[Ben Dover]

The Dust Shield is part of the Companion Flange (yoke) and is pressed onto it. It neen not be removed fromthe Companion Flange in order to remove the Companion Flange from the back of the transfer case.

[echelon1]

The Dust Shield is part of the Companion Flange (yoke) and is pressed onto it. It neen not be removed fromthe Companion Flange in order to remove the Companion Flange from the back of the transfer case.

Ben Dover, I did not say it needed to be removed to get the yoke and drum assembly off the gearbox.
I meant to say that the dust shield needs to come off to remove the drum from the EXTERNAL hand brake (old style external hand brake system) from the yoke.

Regards,
Gindi.

[Ben Dover]

Gotcha.