A little vibration - JeepForum.com

Reply
 
LinkBack Thread Tools
post #1 of 19 Old 01-21-2010, 02:03 PM Thread Starter
H_Swank
Registered User
2007 JK Wrangler 
 
Join Date: Dec 2009
Location: Copperas Cove
Posts: 364
A little vibration

Just got through building my rig. Its got the TJ 4.0L and the AX-15 married to the NP231.

I am getting some vibration, mainly while I am decelerating without pushing the clutch. When I hit the clutch its all quite. I am running Mercron IV ATF in the tranny and xfer case.

Any suggestions would be greatly appreciated.

H_Swank is offline  
Sponsored Links
Advertisement
 
post #2 of 19 Old 01-21-2010, 02:50 PM
Mean Max
Don't poke the bear
 
Mean Max's Avatar
1991 YJ Wrangler 
 
Join Date: Jul 2007
Location: Stuart, Florida
Posts: 13,734
What did the AX-15 come out of?

Max

Click here to see all of my different albums on Photobucket.
Choose any album to see all of my pics!


Quote:
Originally Posted by UltimatE View Post
Max has a picture of every Jeep part ever made.
Quote:
Originally Posted by Benderff View Post
No one here knows what they are talking about. You should try Pirate 4x4 they will be happy to help you.

There is no situation that cannot be improved with a small but well-placed explosive.
Mean Max is offline  
post #3 of 19 Old 01-21-2010, 03:04 PM
ritjobbie
Registered User
1995 YJ Wrangler 
 
Join Date: Jul 2007
Location: Rochester, NY
Posts: 1,283
ATF in a manual gearbox?

I'd check u-joints. Replace them all if it's never been done.

1995 YJ Rio Grande, 2.5L Low Output Engine
My Jeep Worklog
ritjobbie is offline  
post #4 of 19 Old 01-21-2010, 03:20 PM
postaldave
Registered User
1996 XJ Cherokee 
 
Join Date: Dec 2009
Location: kentucky
Posts: 380
rear diff might be going out.
postaldave is offline  
post #5 of 19 Old 01-21-2010, 04:39 PM
Mean Max
Don't poke the bear
 
Mean Max's Avatar
1991 YJ Wrangler 
 
Join Date: Jul 2007
Location: Stuart, Florida
Posts: 13,734
Quote:
Originally Posted by ritjobbie View Post
ATF in a manual gearbox?
Very common. Many manufacturers (Volvo for one) call out ATF for their manual gearboxes.

I'd check u-joints. Replace them all if it's never been done.
Good idea!

Max

Click here to see all of my different albums on Photobucket.
Choose any album to see all of my pics!


Quote:
Originally Posted by UltimatE View Post
Max has a picture of every Jeep part ever made.
Quote:
Originally Posted by Benderff View Post
No one here knows what they are talking about. You should try Pirate 4x4 they will be happy to help you.

There is no situation that cannot be improved with a small but well-placed explosive.
Mean Max is offline  
post #6 of 19 Old 01-21-2010, 05:39 PM
mrmud4x4
Registered User
1988 YJ Wrangler 
 
Join Date: Nov 2008
Location: Rocky Mount, NC
Posts: 394
Quote:
Originally Posted by 01Extreme69 View Post
Just got through building my rig. Its got the TJ 4.0L and the AX-15 married to the NP231.

I am getting some vibration, mainly while I am decelerating without pushing the clutch. When I hit the clutch its all quite. I am running Mercron IV ATF in the tranny and xfer case.

Any suggestions would be greatly appreciated.
Make sure your tranny mount bolts are tight.(on the skid plate) When you decel...tranny may be lifting a little, or rotating.

This forum requires that you wait 60 seconds between searches. Please try again in 1 seconds.
mrmud4x4 is offline  
post #7 of 19 Old 01-21-2010, 05:40 PM
TheDuke17
Registered User
1994 YJ Wrangler 
 
Join Date: Jan 2009
Location: Washington St.
Posts: 29
Mine did the same thing a few months before the rear carrier bearing went out.

It should be painfull to be STUPID!!
TheDuke17 is offline  
post #8 of 19 Old 01-21-2010, 07:32 PM Thread Starter
H_Swank
Registered User
2007 JK Wrangler 
 
Join Date: Dec 2009
Location: Copperas Cove
Posts: 364
AX-15 is out of a 97 TJ along with the motor. I wasnt sure what the tranny called for, a friend said he ran ATF in his. Plus the seal on the xfer case input if gone, so I figured I would run the same fluid in both.

It dont sound like ujoints, but I guess anything is possible. I will check the tanny mount since I had to fab something up cause the skid plate was for a BA10.
Any suggestions as far as upgraded ujoints?
H_Swank is offline  
post #9 of 19 Old 01-21-2010, 07:45 PM
MJMPC
Registered User
1991 YJ Wrangler 
 
Join Date: Nov 2008
Location: Elizabethtown
Posts: 3,064
I dont think I would run ATF in a man trans .

MIKE

http://www.dav.org/

MJM Powder Coating
Elizabethtown Ky.

http://www.cityprofile.com/
MJMPC is offline  
post #10 of 19 Old 01-21-2010, 07:46 PM
mrmud4x4
Registered User
1988 YJ Wrangler 
 
Join Date: Nov 2008
Location: Rocky Mount, NC
Posts: 394
I would get a seal in there and drain that ATF out, put in a good synthetic oil or penzoil synchromesh.

jus curious - How does it shift?

This forum requires that you wait 60 seconds between searches. Please try again in 1 seconds.
mrmud4x4 is offline  
post #11 of 19 Old 01-21-2010, 07:52 PM
4.7stroker
Registered User
1988 YJ Wrangler 
 
Join Date: Apr 2007
Location: Rio Rancho NM
Posts: 4,298
There is nothing wrong with ATF in manual trannies. My Mustang T45 has been using ATF for 14 years and my Jeep AX15 has been using ATF for 2 years and both shift just like new.
I would check mounts, all driveline u-joints and pinion angle, I would also check for slop in the bearings of the xfer case and diff.

Dwayne
4.7stroker is offline  
post #12 of 19 Old 01-21-2010, 08:04 PM Thread Starter
H_Swank
Registered User
2007 JK Wrangler 
 
Join Date: Dec 2009
Location: Copperas Cove
Posts: 364
It shifts ok. I think it should be better. A little grind going into reverse, but nothing major. I am going to replace the ATF with Sythetic 10W-30. What should I run in the xfer case?

I havent messed with U joints in forever. How can I check them to see if they are the problem?
H_Swank is offline  
post #13 of 19 Old 01-21-2010, 08:23 PM
mrmud4x4
Registered User
1988 YJ Wrangler 
 
Join Date: Nov 2008
Location: Rocky Mount, NC
Posts: 394
Quote:
Originally Posted by 01Extreme69 View Post
It shifts ok. I think it should be better. A little grind going into reverse, but nothing major. I am going to replace the ATF with Sythetic 10W-30. What should I run in the xfer case?

I havent messed with U joints in forever. How can I check them to see if they are the problem?
The driveshaft ujoints are actually shaped like a cross, they connect the U of the driveshaft with the U of the yoke.

Turn your driveshaft by hand while you hold the yoke steady, see if there is play, any popping/clicking while you rotate shaft back and forth.(jus leave it in gear and on the ground) Also visually look at the "cap" of the ujoint and the cap straps and bolts that hold the straps in place. (small bolts) If the bearings under the cap are worn, there will be play there or a visible gap. The bearings may actually fall out between the cap and ujoint end. There are four bearing caps on each ujoint. At the rearend yoke, two should be strapped/bolted, and two should be held in place at the ends with C-clips.

You'll see, real easy check

This forum requires that you wait 60 seconds between searches. Please try again in 1 seconds.
mrmud4x4 is offline  
post #14 of 19 Old 01-21-2010, 08:23 PM
4.7stroker
Registered User
1988 YJ Wrangler 
 
Join Date: Apr 2007
Location: Rio Rancho NM
Posts: 4,298
Just grab and wiggle, there should be no slop in the joint. The xfer case should be ATF. I have Mobile1 in mine.

Dwayne
4.7stroker is offline  
post #15 of 19 Old 01-21-2010, 08:42 PM
gearhead1985
Registered User
1992 YJ Wrangler 
 
Join Date: Mar 2009
Location: quincy il
Posts: 281
get the autozone gold for the life time warranty they are decent just make sure to keep them greased

with your vibrations since you used atf not an oil you might of ate up a bearing my input bearing went out and cased the same symptoms

i want to put a pic here but the computer won't let me so here is the link
http://i641.photobucket.com/albums/u...85/dnsjeep.jpg
gearhead1985 is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the JeepForum.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.



Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Jeep Forums Replies Last Post
Bad Vibration. Please Help? metal_kid17 YJ Wrangler Technical Forum 8 10-26-2009 02:52 PM
Bad Vibration. Manard TJ Wrangler Technical Forum 3 02-25-2008 05:26 PM
Odd vibration JeepPirate TJ Wrangler Technical Forum 4 01-14-2008 12:03 PM
vibration igolf JK Wrangler Technical Forum 20 12-17-2007 07:26 AM
Vibration henri TJ Wrangler Technical Forum 13 04-13-2005 07:25 AM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome