4bangerjp.com
General Forums => The Mess Hall => Topic started by: Gold Member on July 23, 2008, 08:18:03 PM
-
Hi all
I am not 100% sure, but I think I may have an issue... :puzzled:...maybe
I tested the 4 wheel drive system on my TJ in a parking lot. First I did a full lock circle in 2 wheel drive then in 4 wheel drive....yup, 4 wheel drive works pretty good as it gently hops around in full lock.
My issue may exist when I am in 2 wheel drive. In full lock, I can still hear the tires chirp slightly as though the 4wd is still slightly engaged. I first noticed this when I pulled off my driveway and turned on the road...is this at all normal??
Thanks
'99 TJ with 2" BB and 31" GY RT/S tires
-
I don't think so (unless the chirp you are hearing is actually a tire or wheel rubbing).
I had that problem for a while and didn't realize it...thought it was my steering box.
I simply engaged in 4wd again and slammed it out of 4wd as hard as a I could to disengage completely...worked for me, but you may need to see if you need a transfer case linkage extension thingy to accomodate for your lift if one wasn't installed originally.
----------------
Now playing: New Order - Vicious Streak (http://www.foxytunes.com/artist/new+order/track/vicious+streak)
via FoxyTunes (http://www.foxytunes.com/signatunes/)
-
When you were in a 2wd and shifted to 4wd, you had the steering wheel turned to make a tight circle? With slow speed, you were able to engage the chain in the tcase, rotate the front ds as well as the r&p and shafts to the tires. Thus you put the system into a bind since the tires rotate on a different arc within the circle, each tire will rotate a different distance. Then by putting tcase back into 2wd while in the circle, the system is still in a bind so it will stay engage.
When you put the tcase into 4wd, you are engaging a collar to transfer the rotation of the main shaft to the chain. Then the teeth engage. When you shift out of 4wd into 2wd, you have to release that engagement through rotation of the main shaft but without torque. Thus coasting. You can shift in/out of 4wd hi when the tires are spinning the same rotational speed as everything tied from the tires back into the tcase are spinning the same rotational speed. Once you start to drive it, you put the system into the bind engaging all the components to drive each other. Let off the gas and coast to let the components 'gap' and then you will be fine.
-
Bind isn't relevant once the lever is in the 2wd position - it just makes it harder to get there.
The shift fork directly enguages the 2wd/4wd collar. If the shifter is in the 2wd position and the tcase is still in 4wd there are only a couple options
1) Bent shift fork
2) Worn out shift fork pads
3) Slop in shift linkage - on a tj this is a pretty good bet due to the number of bushings and the body mounted shifter
4) Shift linkage out of adjustment
-
I did notice that when in 2 wheel drive (after releasing any torque) that the front drive shaft still turns. Could it be one of the couplers not releasing or maybe a vacuum issue?
-
I did notice that when in 2 wheel drive (after releasing any torque) that the front drive shaft still turns. Could it be one of the couplers not releasing or maybe a vacuum issue?
On a TJ, your front driveshaft will always turn.
-
Ahhh...well that answers that question...lol. Thnx.
-
I have a question.
I followed the vacuum hose from the front axle....and I found the other end. It was hanging through a hole by the front drivers side wheel...attached to nothing. Should this be like that or should it be attached somewhere?
-
I have a question.
I followed the vacuum hose from the front axle....and I found the other end. It was hanging through a hole by the front drivers side wheel...attached to nothing. Should this be like that or should it be attached somewhere?
There's no vacuum hose on a TJ. That is the diff vent. Not supposed to be hooked to anything but the end should be mounted up high somewhere.
-
There is a great deal I don't know about my TJ. Thanks for your reply and sorry for all the dumb questions.