Posted: Mon Jul 20, 2009 8:16 am Post subject: A couple of questions.....
I replaced the seal for the transfer case output shaft last week and re-installed the e-brake assembly. A few days later, I noticed a drip coming from the same area! The output shaft didn't look worn, so I reinstalled it. I don't suppose the seal needs time to swell, does it? (I'm grasping here, as I don't relish the idea of going back in there...)
Also, the e-brake doesn't bind, but after driving it a few miles, the drum is warm to the touch, not too hot to touch, but warm. I realize ideally, that there should be no contact with the shoes/drum, but is that realistic? I've adjusted it per the manual, but it still seems to drag a bit (or else it wouldn't be warm!) It's got brand new shoes.
If a new garloc seal leaks then either the seal was cut on installation, the shaft has an old wear groove that the seal cannot seal up or you forgot to put RTV on the splines before you slid the companion flange on and she's leaking through the splines.
For the brake to work well it must be adjusted tight enough so that you will see some drag or rubbing of the shoes on the drum. If you are using an old drum that has been turned on a lathe you may only have a very small area of each shoe contacting the drum . When you make the inside of the drum larger you must shim the shoes outward an equal amount. Some folks will try to rearc the shoe but I like shims. _________________ Wes K
45 MB, 51 M38, 54 M37, 66 M101A1, 60 CJ5, 76 DJ5D, 47Bantam T3-C & 5? M100
Wes, when you mentioned the RTV on the shaft splines, I don't quite understand that. Once you put the seal on the shaft, that should be the "line of defense" for the oil. The splines that engage the companion flange are on the "other side" of the seal. What am I missing here? Thanks!
If you look very close the new seal rides on the outer circumference of the companion flange. The companion flange has internal splines and slides onto the externally splined output shaft. The minute space between the splines is exposed to tranny oil at the front end which when hot and thin will migrate down the splines and drip out on the brake drum. Always clean and RTV these splines. If you did not do this and the seal is still good and the outer circumference of the companion flange had no wear groove in it then you can bet your bottom dollar that tranny oil is coming out through the unsealed splines. This same problem occurs with the front and rear differential pinion shaft's splines to the companion yokes there. _________________ Wes K
45 MB, 51 M38, 54 M37, 66 M101A1, 60 CJ5, 76 DJ5D, 47Bantam T3-C & 5? M100
Wes, I took another look at the parts manual and now understand what you mean. I'll have to ask my buddy if he RTV'd the splines. I usually do this sort of work myself, but I had other things going on, so I dumped the jeep off at a buddies shop. I'm hoping he simply forgot to RTV the splines so I don't have to replace the seal, shaft, or flange. What kind of RTV do you recommend for this application?
The most common cause of leaks in that area after properly installing a new seal are the wear grooves in the yoke's outer circumference where the seal lip rides. This can be overcome sometimes by just using the new style two lipped seal and if that doesn't work a new companion flange or fitting a Redi-Sleeve to the old companion flange. _________________ Wes K
45 MB, 51 M38, 54 M37, 66 M101A1, 60 CJ5, 76 DJ5D, 47Bantam T3-C & 5? M100
Joined: Nov 02, 2007 Posts: 437 Location: Seguin, Texas
Posted: Fri Jul 24, 2009 9:19 am Post subject:
Along this same line of questioning......in lieu of rtv on the splines.....do some of the manufacturers make a gasket that fits between the flat washer behind the shaft nut and the yoke or companion flange? The reason I ask......I got my overhaul kit from Novak and there was a small circular gasket that was the proper size to go here....and nowhere else really. Of course there weren't any instructions saying to do this exactly but I wonder if this could have been the application......and there were two in the kit......one for the front and one for the rear. Just curious......but I definitely need to go back in there and apply some rtv.
No gasket there. The torque is very high on the companion flange nut because that thing does a ton of work. Anything soft item stuck in between that nut and the companion flange will eventually cause the nut to loosen. _________________ Wes K
45 MB, 51 M38, 54 M37, 66 M101A1, 60 CJ5, 76 DJ5D, 47Bantam T3-C & 5? M100
You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum
Forum FAQ
Search
Usergroups
Profile
Log in to check your private messages
Log in
