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Author Topic: 97 TJ 4.0L Noisy clutch problem  (Read 4980 times)

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Asylum

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97 TJ 4.0L Noisy clutch problem
« on: September 26, 2007, 07:12:59 PM »

Hey all.

After dunking my Jeep in the sheep dip at Cheapfest my clutch developed a nasty noise. I am guessing I have loads of crap in it as the sheep dip was filled with lovely runny muddy water/goo!

I put a hose up to the bottom of the flywheel holes and tried to clean it out with some water but it did not solve the problem. It has got slightly better through normal driving but is not right.

So, I am looking for advice on the best way forward?

My truck is a 4 litre and there is no inspection plate I beleive so I can get more inside with a hose pipe. Am I looking at trying to move the gearbox and transfer box back slightly by undoing the houseing bolts a bit to try and get into it or removing the whole transmission?

What problems and how difficult is it to remove the transmission and how critical/problematic is aligment of the connecting shaft during removel and puttting back together?

Any advice very welcome.

Cheers all
Clayt
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Steve B

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« Reply #1 on: September 27, 2007, 10:29:45 AM »

Hi,

What sort of noise is it? did you depress the clutch while submerged?  I guess the only way to inspect it properly is to remove the gearbox.

Things should be straight forward if you don't dismantle the pressure and friction plate but if you depressed the clutch I would recommend it. It would then need re-aligning.

Also it would be a good Idea to check your g-box, transfer, diff. oils for contamination. Ideally replacing these oils.

Steve
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Asylum

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« Reply #2 on: September 27, 2007, 11:56:24 AM »

Hi Steve

I did depress the clutch while submerged. I would discribed the noise as similer to when your brake discs are full of mud. Kind of a rubbing noise. If I press the clutch in and out the noise changes.  It has improved through general driving and when the clutch pedal is pressed in now the the sound is gone. Can only hear it if in neutral and idleing or driving slow. Once I reach a certain speed I can only hear tyre noise!!

Thanks
Clayt
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Steve B

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« Reply #3 on: September 27, 2007, 01:03:39 PM »

To me this sounds like there is debris between the friction plate and pressure plate, try running the engine with someone depressing the clutch and then try to hose it clean.

But realistically the debris is probably stuck into the friction plate so the only way is to remove and inspect the parts.

I guess the worst that can happen is you would ultimately need to replace the clutch and the flywheel.

Steve
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Bubba

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« Reply #4 on: September 27, 2007, 04:22:27 PM »

remove the slave and you can get in with the hose properly and aim in to the friction plate you sure its not just the thrust bearing gotten noisy if the clutch bite has not changed it may be the thrust if the bite has changed or feels odd its crud in the clutch
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Asylum

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« Reply #5 on: September 27, 2007, 05:39:12 PM »

Cheers Steve and Bubba.

The noise was not there before going into the sheep dip. After exiting via winching and stopping the truck while others tried to get through, then starting the truck the noise was present. I am hoping its crap in there as I cant really aford more bits at the moment! The bite on the clutch was higher than normal and produced some nasty smells, especially under engine breaking.

I have never dealt with thrust bearings before at all, in fact never looked at taking out the transmission so quite hesitant, but willing to do what needs to be done to get back froading.

If it was the thrust bearing would the noise change by just pushing the clutch?

Cheers again
Clayt
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MOCAJ

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« Reply #6 on: September 27, 2007, 05:59:56 PM »

mines the same on the 97, very noisy at times then goes quiet for a bit, its being the same since some deep paddling on new years day really.

I am sure its the thrust bearing and hosing it out has prob made it worse.

My next 4WD order has a clutch kit to solve it hopefully  :wink:
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Bat Fastard

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« Reply #7 on: September 27, 2007, 08:19:20 PM »

That mud you have down there is nasty stuff!
When my clutch got bunged up last year at CF it would not disengage correctly.

It took hoses and drain cleaning attachments for the pressure washer being poked and prodded in any orrifice available in the vicinity of the clutch.

One good access point was created by removing the clutch slave.
Just don't depress the clutch when it is out ;o) Bubba managed to find the bits in the grass and put it back together.

I think that when the mud dries with the heat of the clutch it goes so flippen hard it takes some shifting. Driving helped break it off too, but it took a few weeks for the last of the grumbles to go.
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