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Clutch Problem


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#1 jonnyfawr

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Posted 04 July 2019 - 09:19 AM

hi, having a bit of a nightmare...

'89 998 BRG, Non-verto

 

Gear changing started to get very crunchy recently, got to the point that it woudnt engage.

So I took off the housing, and found this..

Attached File  IMG_1085.jpg   52.04K   4 downloads

 

So changed it, did the slave cylinder/piston/release lever while I was there, as it was leaking.

Thought that would have sorted it,

But it still wont engage.

Clutch release lever operating ok, throw out stop, adjusted ok.

 

One symptom...The engine revs lower when depreesing the clutch...why would that happen?

Does this mean there are more fundamental problems?

Do I need to change the flywheel?(dont fancy that job)

 

Apprecite any advice

 



#2 Steve220

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Posted 04 July 2019 - 09:45 AM

I've a feeling your primary gear bushes are worn. Did you check it whilst the clutch was out?


Edited by Steve220, 04 July 2019 - 09:46 AM.


#3 jonnyfawr

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Posted 04 July 2019 - 09:50 AM

I've a feeling your primary gear bushes are worn. Did you check it whilst the clutch was out?

no I didnt, just took the housing off

Is that a difficult job?



#4 Steve220

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Posted 04 July 2019 - 10:17 AM

Depends if your crank is badly scored first. I'll wait until nick or spider moke have had a say first, as I could be wrong.

#5 cal844

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Posted 04 July 2019 - 10:34 AM

Does sound like either the thrust washers are worn, or the primary gear catching the crank nose

#6 jonnyfawr

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Posted 04 July 2019 - 11:39 AM

thanks, thought it might be serious....Thats too big a job for me, so its off to Thomas Classics in Cwmbran  :ohno: 



#7 cal844

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Posted 04 July 2019 - 01:09 PM

I really do hope it isn't what I've posted above, but it's highly likely

#8 Moke Spider

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Posted 04 July 2019 - 06:44 PM

It does sound like the Clutch maybe over-throwing.

 

How many revs drop when the clutch is depressed?

 

As Steve mentioned, it maybe a Primary Gear issue, you'd take the Flywheel & Clutch out to check.



#9 jonnyfawr

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Posted 05 July 2019 - 08:09 AM

It does sound like the Clutch maybe over-throwing.

 

How many revs drop when the clutch is depressed?

 

As Steve mentioned, it maybe a Primary Gear issue, you'd take the Flywheel & Clutch out to check.

it was idling at about 1200, dropped to about 800 when clutch engaged

 

I dont have the facilities to take the engine out, so have asked a local mini expert to help get her better



#10 mk1leg

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Posted 05 July 2019 - 09:55 PM

primary gear bearing failure






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