New AA SYE--Now output shaft seal leaking - JeepForum.com
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Unread 06-17-2008, 10:08 AM   #1
moparjunkee
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1997 TJ Wrangler 
 
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New AA SYE--Now output shaft seal leaking

So I finally got around to installing my AA SYE kit and had a front XJ DS shortened and balance. Got it all together and wow what a difference. I can't believe how much smoother than trying to get by without it. I also did a shifter relocation bracket while I was in there. So I drove it about 20 miles and then crawled under it to adjust my TC linkage and noticed a small amount of ATF on the output seal. I can't really tell if it is coming from the rubber part that the yoke rides on or if it is coming from the pressed fit in between the seal and the SYE housing.

I think I have read this exact same problem thread but I did a search and nothing. Does anyone have any suggestions what might be the problem? I got to thinking that maybe it was just what was left over from me maybe being sloppy when I pre oiled the seal in installation.

Anything would be great.

Thanks

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Unread 06-17-2008, 11:11 AM   #2
crusty1007
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take the rear driveline off the output yoke and feel around the nut. See if you are getting any kind of ATF seeping from there.

If so, then the easiest way to fix that is to remove the yoke nut. Pull the yoke off.
remove the black rubber star washer.
Using some cleaner, clean the output shaft splines and the splines in the yoke.
Take the yoke and put the u-joint side down on the table so the splined end is facing up.
Use some rtv silicone and run a large bead around the inside of the splines.
now slide the yoke back on the output shaft just far enough to get the nut started.
If you need a new nut I can get you 1. Otherwise use some loc-tite on the original nut.
Use the nut to pull the yoke up tight wich will smash the silicone throughout the splines and behind the nut.
Torque the nut to 150 Ft/lbs
use a paint pen to draw a line through the yoke nut & output shaft so you can glance @ it and make sure it hasnt moved.

If its leaking around the seal PM your PH# and I can get you setup with the pieces you need.
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Unread 06-17-2008, 11:20 AM   #3
ROUGHSHOD
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2006 TJ Wrangler 
 
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Location: Westchester/Ulster NY
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I had the same thing happen after installing the AA SYE. For a couple consecutive mornings, there'd be a drop of fluid at the output. It was such a small amount, I decided to just keep my eye on it. Resolved in 3 days or so and has been fine since.
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Unread 06-17-2008, 12:26 PM   #4
kizer
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Look at this and see if this is the same area you are having a leak at. However I still haven't taken any new photos, but instead of placing RTV on the splines place them inside the yoke. The reason is you do not want to push RTV back into your Transfercase, which applying on the splines might. Placing the RTV inside the yoke will cause the RTV to want to stay near the nut.

http://www.links4jeeps.com/writeups/leak231/

I'll correct the info on that page while Im thinking about it.
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Unread 06-17-2008, 01:27 PM   #5
crusty1007
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Quote:
Originally Posted by kizer View Post
but instead of placing RTV on the splines place them inside the yoke. The reason is you do not want to push RTV back into your Transfercase, which applying on the splines might. Placing the RTV inside the yoke will cause the RTV to want to stay near the nut.
Yes put the silicone in the Splines IN THE YOKE towards the t-case side . this causes the silicone to be pushed towards the nut side of the yoke/shaft. Then by using the nut to pull the yoke up it compresses the silicone. throw the star washer away if it is damaged.
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Unread 07-05-2011, 09:30 PM   #6
thejafe
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Resurrecting this thread...

Anybody got a part number for that output seal?
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Unread 07-05-2011, 09:46 PM   #7
thejafe
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Ok, looks like I found it on Stu's site: Chicago Rawhide 18662
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