Transmission Noises w/ video

[klinetime574]

5/84 FJ60. 197 thousand miles on the H42. Input shaft gasket, top cover gasket, and bearing retainer gasket are OEM replacements done at different times. Something from the front is leaking. Transmission is probably low on oil in this video but I don't think that would cause all of these different noises I am getting.



Noise occurs when clutch pedal is not depressed. Goes away when depressed.

On to my next question about my clutch components.

Should my 5/84 FJ60 have a spring on the clutch fork and back to the slave cylinder? Would missing one cause the throwout bearing to touch the pressure plate and make a noise like heard in the video?

I checked the 10/84-1/90 Chassis and Body Manual and it does not show one. So it sounds like I should have one.

Thanks guys!

 

[TRAIL TAILOR]

Kline, mine does the same thing on clutch pedal. TO bearing on mine is on its last leg. Marley is an 85 so not sure on spring question but IIRC the TO is always somewhat engaged on mine.. this may be the wrong terminology but... I believe was different on the pre-85. Hope I have this right.

 

[klinetime574]

Kline, mine does the same thing on clutch pedal. TO bearing on mine is on its last leg. Marley is an 85 so not sure on spring question but IIRC the TO is always somewhat engaged on mine.. this may be the wrong terminology but... I believe was different on the pre-85. Hope I have this right.

I'm thinking that if mine is supposed to have the spring then I have either worn out or am about to wear out the TO bearing. I need an expert to verify about the spring/ no spring logic.

Also there is a difference about adjustable/ non-adjustable rod. Mine is adjustable.

I think I have read that 85+ should have a non-adjustable with no spring. So that leaves mine to be the opposite. Just need confirmation. Thanks for chiming in J. It's noon and I already need a beer. Or maybe some food... hmmm.

 

[TRAIL TAILOR]

It is definitely beer-thirty Kline. Hope someone more knowledgeable chimes in for you.

 

[gregnash]

Kline, Video is showing as "private"....

 

[klinetime574]

Kline, Video is showing as "private"....

Fixed now?

I must have made an error when uploading from iMovie.

 

[gregnash]

Yeah can see the video.. Definitely a weird noise and reminds me of my old Ranger pickup when the hub was going out on one side when in 4wd. But with the clutch being depressed then I would venture a guess along with Reevesci, sounds like TO bearing is going out. How old is the clutch?

 

[woytovich]

in 2wd I assume?
Maybe transfer case (rear) output bearing? Have you checked for a loose output pinion nut?

 

[woytovich]

Does it happen if the tranny is in neutral?
...if the TC is in neutral

If No and No then emove the rear driveshaft and see if it still happens.

 

[klinetime574]

How old is the clutch?

Clutch was replaced when the motor was rebuilt at 164 thousand. Just rolled over 197 thousand the other day. So ~33 thousand on it.

in 2wd I assume?
Maybe transfer case (rear) output bearing? Have you checked for a loose output pinion nut?

In 2WD. I have not checked that. But it was just re-teorqued when I resealed the transfercase. I did not replace the bearings.

Does it happen if the tranny is in neutral?
...if the TC is in neutral

If No and No then remove the rear driveshaft and see if it still happens.

Transmission in neutral, transfercase in 2Hi is the only thing I have tested.

I'll test it some more.

Thanks for the ideas.

One thing I have realized is that the noise gets louder with speed. More rotations of the clutch/ pressure plate the louder the noise. Really thinking it has something to do with the TO bearing. I hope it's not something else. I only have one car... this one.

 

[AnkurGT]

My first thought before reading the rest of these posts was literally:

"Damn - that is the loudest throwout bearing in the whole world"

It really doesn't sound like the typical throwout bearing noise though... it is really quite loud and doesn't have the same rythmic quality I've heard in my experience.

Been doing any water/mud crossings? If you manipulate the clutch while immersed, it can cause these kinds of noises to develop (at least it did in my Jeep JK after my first water crossing).

 

[klinetime574]

Did some water crossings a few months back. But I stayed in gear. Didn't touch the clutch.

Also it is much louder with the shift boot off as it is in the video.

 

[AnkurGT]

Well the good thing is that throwout bearings are cheap, but remember to buy the hub and clip also if applicable. Sam Stewart on here can hook you up with parts.

Bad news is that I can imagine it is a PITA to change. I've never done it. Post a write-up when you do it - I have some TO bearing noise too...

 

[klinetime574]

The crap part is that was replaced with the engine rebuild ~33 thousand miles ago. And if it needs changing I don't have the time to do it. A hard days work easy.

Can anyone confirm if I am supposed to have a clutch return spring on the clutch fork?

 

[AnkurGT]

Can anyone confirm if I am supposed to have a clutch return spring on the clutch fork?

Doesn't look like it... see FSM clip attached. No spring specified on clutch fork.

 

[AnkurGT]

Your diaphragm springs should handle clutch return I'd guess. The FSM does specify tolerances for the diaphragm spring allowable wear.

 

[klinetime574]

That came out of the later 10/84 - 1/90 manual correct? (Post #15)

I have this image, but no source.

 

[mwalls54]

yes you should have a spring in there unless your slave has been replaced with a newer style. and it does sound like a throw out bearing.

 

[AnkurGT]

Yes that is 10/84 - 1/90. I have the older one also, and I just looked at it. That diagram you posted is for adjusting play in the release cylinder, which does have a return spring.

If you were indeed asking about the clutch (release) fork, then there is no spring.

My knowledge of clutches is rapidly degrading past this point, so hopefully someone else will chime in also... :-D

 

[mwalls54]

Yes that is 10/84 - 1/90. I have the older one also, and I just looked at it. That diagram you posted is for adjusting play in the release cylinder, which does have a return spring.

If you were indeed asking about the clutch (release) fork, then there is no spring.

My knowledge of clutches is rapidly degrading past this point, so hopefully someone else will chime in also... :-D

Some Replacement slaves wont have a tab built in for the spring and some have a small bracket that uses the 2 slave bolts. The 10/84 1/90 is self adjusting and does not use the threaded rod or the return spring.