• Hello Guest, we are proud to now have our Wiki online that is completely compiled and written by our members. Feel free to browse our Jeep-CJ Wiki or click on any orange keyword when looking at posts in the forum.

transmission noise

transmission noise

zoup2nuts

Jeeper
Posts
8
Thanks
0
Location
Colorado Springs, CO
Register now
You must register or login to view hidden content on this page.
Hello all, I'm new here and am in the process of picking up a CJ5 , its an '81 with a very clean '79 tub. It has the AMC 304 V8 and a 4-speed. It has a noise in the Transmission if you take it out of gear and don't shift it. My first thought was throw-out bearing, but not sure. It does it every time. If you go from gear to gear there is no sound, the syncros are fine, its only if you leave it in neutral. Any thoughts on what it may be and potential cost of repair?...thanks in advance...Bob
 
Hello zoup2nuts and welcome to our site! :chug:

Sure sounds like a throw out bearing to me or even possibly the pilot bushing. The problem with this scenario is that a properly adjust TO bearing never turns while the clutch is not engaged... Like I said though - a properly adjusted TO bearing. All to often the clutch engagement isn't set incorrectly and the TO bearing turns even when the clutch isn't engaged - this reduces the TO bearing life considerably.

If you slightly press on the pedal while the noise is going on, does the noise change?

A pretty good test is to back the clutch off so the TO bearing is no longer even remotely close to the pressure plate when released. You may have to really press the pedal all the way to the floor but it should eliminate the TO bearing.

Let us know! :)
 
Cj is totally right with this one. Also while your under there make sure you know ( not assume ) that the mounting bolts are torqued to spec. They may be loose and wear your pilot bushing to poopy. It makes alot of noise also , and makes you think throwout bearing.
 
Register now
You must register or login to view hidden content on this page.
Thanks guys, what would I expect to spend to fix either of those conditions? I'm looking at it in a few minutes and will try the depressing the pedal a bit and can better describe the noise after that...Bob
 
Thanks guys, what would I expect to spend to fix either of those conditions? I'm looking at it in a few minutes and will try the depressing the pedal a bit and can better describe the noise after that...Bob
The parts are relatively cheap? Are you talking just part ( as if you did the work yourself) of if you hired a mechanic???

:)
 
It depends, I've never dont that work before, so let's say if I paid someone. I did drive it and I'd modify the sound a bit. It isn't a grinding, but more of an intermittant clicking. And it doesn't always do it. It seems if you take it out at a faster pace it is more likely to do it. Also when it does it, it doesn't change in intensity when you put the clutch in slightly or all the way. I tried to get to act up and did it only once in five tries, and then its a pretty subdued sound.
The jeep overall seems pretty good, the AMC 304 is smooth with a slight hesitation right off idle if you crack it open quickly, but if you give it gas slowly for a moment, then it doesn't hesitate. It has 82K original on it and is running a single exhaust. The tranny is a 4-speed and it seems fairly high geared.
Theres some steering play, but it has power steering and it works great. It didn't seem to wander going down the road or wobble.
It is free of rust and has hard (no hard doors) soft, and a bikini top. Has leather seats and overall seems pretty decent. The oil pressure at idle after warming up was between 35 and 40 lbs., but quickly increased with rpms to about 80 lbs. I don't know enough about the AMC 304 to know if that's acceptable or not.
Any thoughts would be appreciated. Oh, I can probably get it for $3500...Bob
 
It depends, I've never dont that work before, so let's say if I paid someone. I did drive it and I'd modify the sound a bit. It isn't a grinding, but more of an intermittant clicking. And it doesn't always do it. It seems if you take it out at a faster pace it is more likely to do it. Also when it does it, it doesn't change in intensity when you put the clutch in slightly or all the way. I tried to get to act up and did it only once in five tries, and then its a pretty subdued sound.
The jeep overall seems pretty good, the 304 is smooth with a slight hesitation right off idle if you crack it open quickly, but if you give it gas slowly for a moment, then it doesn't hesitate. It has 82K original on it and is running a single exhaust. The tranny is a 4-speed and it seems fairly high geared.
Theres some steering play, but it has power steering and it works great. It didn't seem to wander going down the road or wobble.
It is free of rust and has hard (no hard doors) soft, and a bikini top. Has leather seats and overall seems pretty decent. The oil pressure at idle after warming up was between 35 and 40 lbs., but quickly increased with rpms to about 80 lbs. I don't know enough about the 304 to know if that's acceptable or not.
Any thoughts would be appreciated. Oh, I can probably get it for $3500...Bob
As for the noise... IMHO - I wouldn't worry about it if it only made the noise once in five times. It's a 25+ year old vehicle - they make noises and wear out. If it is the TO bearing, it's an easy fix and at the same time the clutch can be replaced.

Only 82k? WOW!!! :notworthy:

If it doesn't wander down the road - a very good sign... :)

The oil pressure is great! The normal pressure can be as low as 20 at idle, increasing to 80 is normal and is a good thing... :)

Sounds like a good find to me!
 

Similar threads

  • Question<br> <font color=black> Reply's are voted<br> on for best answer</font> Question
    Reply's are voted
    on for best answer
Replies
11
Views
46
  • Question<br> <font color=black> Reply's are voted<br> on for best answer</font> Question
    Reply's are voted
    on for best answer
Replies
14
Views
207
  • Question<br> <font color=black> Reply's are voted<br> on for best answer</font> Question
    Reply's are voted
    on for best answer
Replies
9
Views
550
  • Question<br> <font color=black> Reply's are voted<br> on for best answer</font> Question
    Reply's are voted
    on for best answer
Replies
3
Views
309

Jeep-CJ Donation Drive

Help support Jeep-CJ.com by making a contribution.

Help support Jeep-CJ.com by making a contribution.
Goal
$200.00
Earned
$50.00
This donation drive ends in
0 hours, 0 minutes, 0 seconds
  25.0%
Back
Top Bottom