Author Topic: Transfer Case Issues  (Read 177 times)

radar56

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Transfer Case Issues
« on: July 01, 2019, 07:39:07 PM »
Was out driving today and happened to try putting the T-Case into 4wd. When it is in any of the 4wd modes the T-Case slips. Everything is fine in 2wd, but in 4wd I get little to no power to the ground...  Going to investigate some more hopefully tomorrow. Any thoughts on where I should start.
-Adam

1994 Montero SR
-Torsion Bar Crank and OME Rear Springs
-33x12.50r15
2002 F250 7.3 Powerstroke
2008 Nissan Pathfinder (Wife's Beater)
-Trying to convince her to let me lift it...
Multiple other toys for me and the two boys...

Shovel

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Re: Transfer Case Issues
« Reply #1 on: July 02, 2019, 07:46:32 AM »
Does your transfer case shift "positively" into each position or is the shift lever sloppy?     

radar56

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Re: Transfer Case Issues
« Reply #2 on: July 02, 2019, 11:37:12 AM »
I would say it shifts positively into gear.  I am out of town for the holiday but will dig into it more next week.  Start with the simple stuff: fluid, linkages etc...

Does anyone have a good layout of what the internals look like in these things?  I have not seen inside the Mitsu T-cases before. 
-Adam

1994 Montero SR
-Torsion Bar Crank and OME Rear Springs
-33x12.50r15
2002 F250 7.3 Powerstroke
2008 Nissan Pathfinder (Wife's Beater)
-Trying to convince her to let me lift it...
Multiple other toys for me and the two boys...

plh

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Re: Transfer Case Issues
« Reply #3 on: July 03, 2019, 02:00:37 PM »
The FSM is pretty detailed
83 Mighty Max SPX - 2.0l 4 speed. coming: ARB bumper, winch, OME 2" rear, Bilsteins, 4.90 rear locker, front LSD. 31x10.5R15
88 Raider: 4D56T, 5 spd, 4.62 LSD F & R, KYB G/A, T/L, OME Dakar Rear Springs, 33x12.5x15 MTZ, PLH L/Os, Dual Bouncies,
92 Montero RS M/T - SOLD!
93 Montero SR Auto 3.0 V6 33x10.5R15LT BFG T/A KO, KYB G/A, 4.88, ARB Bumper, Warn HS9.5k, New Heated Leather, Dual Bouncies
05 Montero LTD LT285/75R16 BFG T/A KO2, KYB G/A, OME Springs
http://www.tuffpans.com

that_guy_eric

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Re: Transfer Case Issues
« Reply #4 on: July 07, 2019, 11:00:14 PM »
Was out driving today and happened to try putting the T-Case into 4wd. When it is in any of the 4wd modes the T-Case slips. Everything is fine in 2wd, but in 4wd I get little to no power to the ground...  Going to investigate some more hopefully tomorrow. Any thoughts on where I should start.

What year is your Montero?

radar56

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Re: Transfer Case Issues
« Reply #5 on: July 08, 2019, 06:12:12 PM »
It is a 1994 Montero SR.  Pulled the fill plug in the T-case and a bunch of oil poured out.  Figured I will change the oil as long as I am digging in there.
-Adam

1994 Montero SR
-Torsion Bar Crank and OME Rear Springs
-33x12.50r15
2002 F250 7.3 Powerstroke
2008 Nissan Pathfinder (Wife's Beater)
-Trying to convince her to let me lift it...
Multiple other toys for me and the two boys...

radar56

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Re: Transfer Case Issues
« Reply #6 on: July 08, 2019, 07:18:58 PM »
OK...  So this is where I feel like a moron, but not completely.  Everything works as it should once I lock the front hubs in.  Why would that matter?  There must be something mechanical that doesn't lock in completely when the front drive shaft is not spinning. 

-Adam

1994 Montero SR
-Torsion Bar Crank and OME Rear Springs
-33x12.50r15
2002 F250 7.3 Powerstroke
2008 Nissan Pathfinder (Wife's Beater)
-Trying to convince her to let me lift it...
Multiple other toys for me and the two boys...

Shovel

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Re: Transfer Case Issues
« Reply #7 on: July 09, 2019, 10:03:11 AM »
Front hubs or front CAD were my first thought except that you said it "slips" in any of the 4wd modes..     it should not slip at all in 4HLc or 4LLc because those are "locked" positions;  power is sent to both axles without slip in the transfer case. 

So there might still be something wrong inside your transfer case, or maybe somebody replaced the shift fulcrum improperly and it's not actually moving the range select sleeve. 

dos531

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Re: Transfer Case Issues
« Reply #8 on: July 14, 2019, 12:18:19 PM »
If your Hubs are unlocked and you out it in 4h unlocked, then you're slipping the center diff.  Good way to destroy your center diff.

radar56

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Re: Transfer Case Issues
« Reply #9 on: July 16, 2019, 11:23:23 AM »
I think the center diff was not locking in the Lc position at first.  Everything seems to be working now.  I know another guy around here who had his not locking as well, he did some digging and said if they sit for a while there can be some oil sludge that forms causing the diff to not lock, my rig was in storage for 10 years before I bought it.  After you try it a few times it works.  I am guessing that was my problem.
-Adam

1994 Montero SR
-Torsion Bar Crank and OME Rear Springs
-33x12.50r15
2002 F250 7.3 Powerstroke
2008 Nissan Pathfinder (Wife's Beater)
-Trying to convince her to let me lift it...
Multiple other toys for me and the two boys...