: tcase not shifting after JBcon SYE install


DozerDan
08-20-2002, 06:11 PM
Ok here are the stats: 98TJ auto I6 tcase. trying to istall the JB sye with new main shaft.

Everything is done in accordance with the directions, weither that is good or not i dont know.

As is it everything fits togehter smootly, or so it appears. however when the case is in 1/2's and the linkage in 2wd the 4wd engagment collar is sitting VERY close to the engageing teeth(chain sproket), when the case is put back together (bolted up) and still in 2wd the collar is engaged for some reason in 4wd.

then when you go to shift the linkage it will not fully engage into any possision other than 2wd. In the destructions it says that the shifter rail may hit the tail cone, this is not happening though, it is more like the shifter rail is binding up on itself and the lower selector for the 4low.

All in all it will not shift into anything other than 2wd (bad) and on top of that it is stuck in 4wd even though it 'says' it is in 2wd (worse) and on top of all that it is not my tcase (fubar)

Anyone had this problem before?

Like i said directions were followed to the t, even though that is not my normal style I did it. weither that is a good thing or not i dont know.

any help would be great

dan

Recurve
08-20-2002, 07:04 PM
Dude I wish I could help you. I just did an AA today. The t-case is so trivial it's hard to imagine anything could go wrong. This may go unmentioned but you didn't put anything in backwards right? If you disconnected the linkage did it go back on indexed correctly? Does the JB output bearing cone have a tapped hole in it where the shift rails comes through the case half? If so does the threaded plug for the hole impede the shift rail? Does that plug have a spacer that is suppose to be used?

DozerDan
08-20-2002, 07:17 PM
yeah i know, that is the real kick in the balls, everything appears right. hell i even pulled out the spare tcase from the basemnt and tore it down, everything is functionally correct, it is just not working. something is binding up and not letting it move. i even took it completely all apart and started from the beginning- nothing.

btw 6lb hand slegdes leave BIG holes in the garage wall...i have some er anger management issues...

Recurve
08-20-2002, 07:27 PM
I thought about it some more. Read my previous post again. I edited it some.

BostonWrangler
08-20-2002, 07:39 PM
Check to make sure the oil slinger tabs are outboard of the rear case half and set into the slots on the new rear cone.

DozerDan
08-20-2002, 07:41 PM
word darrell you are a live saver, thanks again man.

cmk
08-20-2002, 08:19 PM
My money is on one of the shift hubs having been reinstalled backwards. I forget if it's the lo-hi hub or the 2-4 hub, but one of them can be easily reinstalled backwards and cause the exact same end result you described.

cmk

onetoncv
08-20-2002, 08:25 PM
did you call jb conversions ? Jess:D

DozerDan
08-20-2002, 08:50 PM
i got it guys. I had the oiler on the insideof the case leaving no room to move aka binding, i moved that to the outside of hte case and it works great.

Looking back at the directions they dont say to do that but it is in the one pic that way. Iover looked it.

anyway thanks for the ideas.

cmk i checked that bc originally that is what i thought i did.

dan

Travis Waldher
08-20-2002, 09:08 PM
Originally posted by dozernad
i got it guys. I had the oiler on the insideof the case leaving no room to move aka binding, i moved that to the outside of hte case and it works great.

Looking back at the directions they dont say to do that but it is in the one pic that way. Iover looked it.

anyway thanks for the ideas.

cmk i checked that bc originally that is what i thought i did.

dan

LOL, one of those mistakes you only make once cause you feel like a jackass afterwards. (I know this from experience. :p )

Its not in the destructions, cause they assume the dumbass assembling the tcase is paying attention to how it came apart.

signed,
your fellow dumbass.

DozerDan
08-20-2002, 10:31 PM
my fellow dumbass.. haha good stuff. Yeah been there done that, sure ill do it agian route.

i think part of the prob was that i didnt take the case apart, well not fully. i pulled it out of my buddies truck with him, then he started to tear it down, i did some other stuff tothe truck, then it sat for 2 weeks then i got it agian 3/4's apart and finished taking apart- putting together.

the more i work on jeeps (cars in general) the more i hate them, yet for some reason i keep doing it.. like some sick addiction.

BostonWrangler
08-21-2002, 09:44 PM
No... you're just a dumbass

:flipoff2: :vader2:

P&T Jeeps
08-22-2002, 07:13 AM
impressive Boston, good catch. sounds as if you must have been the dumbass once though?

:flipoff2: :flipoff2: :flipoff2:

4Bangler
08-22-2002, 08:34 AM
Takes one to know one, and I know a lot of them, the first time I pulled down a NP231 I managed to break the little pickup tub off of the oil pump, and when I robbed ont out of another case I put it inside the case half like you did, then realised that it went outside, damn newfangled aluminium t-cases, simple and yet so complicated for the simple minded. Being a Dumbass ain't all that bad, the pay sucks, but the benefits....well they suck too.

BostonWrangler
08-22-2002, 05:49 PM
Originally posted by P&T jeeps
impressive Boston, good catch. sounds as if you must have been the dumbass once though?

:flipoff2: :flipoff2: :flipoff2:

Of course! As 4Bangler stated, takes one to know one. :rolleyes: :flipoff2: