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The mkiv Supra Owners Club

Juddering clutch after being stood


Homer

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All seems to work okay, but when releasing/slipping it the clutch judders (bite - no bite - bite - no bite) at about the rpm I'd imagine the flywheel is turning.

 

The car has been stood for around 2 years and the problem is much more noticable now than 2 years ago. THe car has driven about 1/2 a mile in all that time, though I do drive it to the end of road and back every 3 months, just to try and stop stuff seizing up.

 

I'd imagine there's is oil/rust from on the faces from where it's been stood for so long...

 

The reason for the question is not whether I need a new clutch, but whether this is a problem that's likely to get worse/cause the clutch to completely slip once the car goes for it's first proper journey in the not too distant future. I don't want to end up broken down somewhere :D

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Maybe the clutch fork sticking abit?

Pull the rubber boot back on the side of the box and spray some wd on the clutch fork and see what its like

 

Thanks, will take a look.

 

Would a sticking fork cause juddering though?

 

Once engaged the drive is fine, it's just during the bite point it judders. Thinking about it, the judder is worse the less the clutch is engaged, but gets less noticable the more it's released.

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Now that you say that i wonder if its flywheel face.

 

Usualy when you get excessive juddering at the bite fingers point to the flywheel.

 

Might of got a bit of surface rust or crap on the face of it.

 

I had a similiar issue with my daily beater a while back and the face of the wheel had shit alover it and groves from the worn clutch and ended up replacing it

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Now that you say that i wonder if its flywheel face.

Usualy when you get excessive juddering at the bite fingers point to the flywheel.

Might of got a bit of surface rust or crap on the face of it

 

That was what I was thinking originally (well either flywheel or clutch face issues).

 

How do you think this would develop once the car is taken for a drive?

 

I have no idea whether it's the sort of thing that would sort itself out after a few miles, or end up getting worse and start slipping :search:

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  • 7 months later...

Bringing this one back...

 

The engagement has got a lot better now the car has done about 500 road miles the last couple of weeks, however it's still juddering.

 

It's okay when the clutch pedal is low and partially enagged, it gets much worse the more the pedal is released, the last 25% or so is the worse. Giving it more RPM helps (about 2k rpm), but it doesn't go away.

 

It's only noticable in first and reverse. It's not so bad that the car is undrivable or anything, it's just a bit annoying.

 

Could this mean the clutch/flywheel was too far rusted to get itself bedded in again? Any ideas on what can be checked without pulling the gearbox off? I have a bad feeling Chris's last reply is going to be the answer!

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I had this for a short while, but after a good traffic jam a couple of days later it disappeared.

I did put it into 5th, rev slightly, and slowly released and engaged the clutch a couple of times, I had the same issue on another car previously and the above fixed it.

 

Might sound pikey, but if it works, it works. :)

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Do a couple of hard starts with a BIT of clutch slip, let it cool for half an hour and do two more. If it still judders grab the tool box and axle stands :(

 

I had this for a short while, but after a good traffic jam a couple of days later it disappeared.

I did put it into 5th, rev slightly, and slowly released and engaged the clutch a couple of times

 

I've been quite gentle with the car on starts so will give your more aggressive methods a try :) It seems you're both suggesting the same thing - get some serious heat and pressure on the faces and *hope* they clear themselves after a couple of heat cycles.

 

Thanks gents :)

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