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- เผยแพร่เมื่อ 6 มี.ค. 2013
- Replace remove the viscous coupling without dropping the transfer case. Jeep Grand Cherokee 1994 NP-249.
Helpful links:
en.wikipedia.org/wiki/New_Vent...
www.masoncomputing.com/np249/ (dead or down - sorry) - ยานยนต์และพาหนะ
This method works and is easier than it looks. It took under 2.5 hours to replace the viscous clutch on my 249 transfer case this way. Thanks for the video!
Good walkthrough. I'm getting ready to do this in a few months and I really appreciate the time you put into making this video. Thank you!
I too always say, "wasn't that bad" after the job is done, HAHA! Thanks for the walk through video and good tips hoss.
Instead of wood, I was able to use a nickel sandwiched by two quarters, wrapped with electrical tape, had the pull-wire held by the electrical tape as well. I suggest you install your contraption into the tailcone, then insert your bearing into the tailcone backwards to test-fit and make sure you're spreading the ring enough.
Rust free Jeep!!! Sacrilege! I have one too, from Florida. Clever tools made for the job.
Gr8 video < Thankyou >
Do you have to unbolt that electric side motor before removing the metal end cap assembly or just unclip it & it all stays together?
great video and smart tips to get the job done!!
Would you know if gutting the VC and just leaving its core as a spacer for the oil-pump, provides 2WD-Hi (rear wheel drive) and still retaining all other features - apart from 4WD obviously? The reason being is that just use my 94 Jeep GC 5.2 (46RH+249 TC) as daily driver in paved roads, thus 2WD important to me :-) Cheers
about 8 hours with all the camera stuff + figuring it out. I would say now (with this guide) I could do it start to finish in 3 hours moving at a medium pace.
would you think it could be done on a 97? the vc is slightly differant.
Thank You for the great content. QUESTION. Can I flat tow behind my motorhome ( 4 wheels on ground) a 96 ZJ with the 249 transfer case? I tested by putting transfer case in neutral and transmission in park and zj moves freely forward and reverse as I push it. Ssme thing happens if transfer case is in neutral and transmission in neutral, I wonder what's safer. Please someone with experience on this reply. I have a trip coming soon and need to know.
For my towing points I'm good. Jeep has a heavy duty winch mount with d rings and it's sandwiched over the unibody frame.. (1996 5.2 V8 with full time 4wd 249 transfer case, automatic transmission)
I have never towed a Jeep and can not comment intelligently on this. I do know from working around the guts of the drive train, that even in neutral, all the parts are going to be moving/turning all the way up (from the wheels) to the transfer case.
Yes you can as long as you put the transmission AND the transfer case on neutral. I pull my 96 ZJ behind my motorhome, no problem.
how long take you to do this?
So what are the symptoms that lead you to believe that it was the viscous coupler?
When I was making sharp turns, like into a parking spot etc, the Jeep drive train felt like it was binding or fighting me on/through the turn. At first I thought I had a bad/locked differential. You can test the differentials (front or rear) by putting the respective ends of the Jeep in the air (Google that one as its been a long time and my memory is spotty. I do recall the rear end seemed bad but was not, it was just the clutch packs throwing me off.) I had no problems driving on the highway at speed though turns, etc. It was only on slower tighter turns. As I did not catch the problem early, a side effect of the issue is strain on the bushings that hold your drive axels parallel (front and rear axels). Its hard to explain without a diagram how the force transfers to the axels when the VC is going. Long and short is the two right tiers tend to move away from each other () while the left tiers move into each other ( front->
How do I open the top of the case to get to the C-clamp?
If I recall correctly it was a 2 torx screws that you must be very careful not to drop into the case. I think I somewhat cover this at around 1:40 and again at 7:40
hoss hoss oh awesome I see it thank you!
hoss hoss another question... lol
How do you tell when the c clamp is open enough?
hoss hoss oh man I can’t get the snap ring pliers to stay on the tabs, they are so skinny (both) any advice?