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Lots of help needed!


 
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Sykopro
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Joined: 25 Jan 2009
Location: Paso Robles, CA

PostPosted: Sat Sep 05, 2009 10:46 am    Post subject: Lots of help needed! Reply with quote

I have a 1992 YJ. My wife bought it for me as a welcome home present when I got back from Iraq. She had a 6 inch lift put on it. Found out the hard way about needing the SYE after that and that's where my problems begin. The person doing the work didn't finish the transfer case. I put it back together myself, but I am not sure that I did it right. The SYE shaft with all the gears on it has another gear that goes on the outside of the gears. It has a groove in it near the one side. Which way does it go? Groove towards tranny or rear end? By the way it is an NP231 transfer case, 5 speed manual and 4.0L engine. On top of the transfercase there was a hose hooked to it which ran up about 3 ft and then had a plug on it. Where is that suppose to go? Then After I got it all together it drove around the block a few times with no problems. I then drove it down the road about 5 miles and the the engine started acting up, almost like the timing was off. Any Idea as to that problem? I am not afraid to tear it apart and fix it, I just don't know where to go on this one. Thanks for any help I get in advance.
_________________
'92 YJ 4.0 and AX15 coupled to the NP231, 5" BDS Lift, Pro Comp Steering Stabilizer, Pro Comp A/T tires on Pro Comp Rims, SYE W/Tom Woods Custom Drive Shaft.
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IBTJn
Moderator
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Joined: 31 Dec 2004
Location: Just Outside of Portland, OR

PostPosted: Sat Sep 05, 2009 10:59 am    Post subject: Reply with quote

First of all, thank you for your service for our country!

Secondly, I haven't much info' to share other than take a look at kizer's write up HERE on the installation of the NP231 SYE. Granted his is a TJ, but I'm sure there is some info' you might find helpful.

Also, check out a few other links he has.

Best of luck.

Wink
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Sykopro
Member


Joined: 25 Jan 2009
Location: Paso Robles, CA

PostPosted: Sat Sep 05, 2009 11:11 am    Post subject: Reply with quote

That's the write up I used to put it back together, but it doesn't mention that one gears position. Since I wasn't the one who took it apart I wasn't sure, but it did drive afterwards. The other link didn't work so I wasn't able to check that info out.
_________________
'92 YJ 4.0 and AX15 coupled to the NP231, 5" BDS Lift, Pro Comp Steering Stabilizer, Pro Comp A/T tires on Pro Comp Rims, SYE W/Tom Woods Custom Drive Shaft.
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kaos
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Joined: 10 Jan 2006
Location: Iceland

PostPosted: Sun Sep 06, 2009 3:26 pm    Post subject: Reply with quote

I'm afraid I can't help you with the gear orientation, but the hose is the breather hose for the transfer case. The plug has an orifice for pressure equalization, and should be clipped in place on the firewall, as high as the hose will reach.

--
Regards,
Kári.
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Sykopro
Member


Joined: 25 Jan 2009
Location: Paso Robles, CA

PostPosted: Mon Sep 07, 2009 12:36 pm    Post subject: Reply with quote

Every bit of info that I can get is a great help. Now know what that hse is for. Thanks for that much. Any info that I can get from anyone is a great help.
_________________
'92 YJ 4.0 and AX15 coupled to the NP231, 5" BDS Lift, Pro Comp Steering Stabilizer, Pro Comp A/T tires on Pro Comp Rims, SYE W/Tom Woods Custom Drive Shaft.
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Sykopro
Member


Joined: 25 Jan 2009
Location: Paso Robles, CA

PostPosted: Fri Sep 25, 2009 8:41 pm    Post subject: Reply with quote

So does anybody know how to test the computer? Also, can I adjust the timing?
_________________
'92 YJ 4.0 and AX15 coupled to the NP231, 5" BDS Lift, Pro Comp Steering Stabilizer, Pro Comp A/T tires on Pro Comp Rims, SYE W/Tom Woods Custom Drive Shaft.
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