Clutch slipping. Clutch cyl or need a new clutch

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bobbob1015 - 19 May 2005 22:35 GMT

Today i was leaving school and i gave it alittle and i din’t notice
any thing at the time. but when i when to start going again the clutch
started to chatter. The clutch pedal was easy to push down too. on my
ride home at one time the clutch pedal was kinda sticking....do i need
a new clutch or do i need to adjust something... please help me out
its a 1985 bmw 325e

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Somebody - 20 May 2005 02:22 GMT

> Today i was leaving school and i gave it alittle and i din't notice
> any thing at the time. but when i when to start going again the clutch
> started to chatter. The clutch pedal was easy to push down too. on my
> ride home at one time the clutch pedal was kinda sticking....do i need
> a new clutch or do i need to adjust something... please help me out
> its a 1985 bmw 325e

Clutch slipping or chattering, you think clutch plates, but the easy to push
thing says clutch cylinders.

If you're like most people, the brake fluid in the clutch cylinders is
*original*. I would start by changing the whole brake fluid supply and the
bleeding out the cylinders until they come out clean.

-Russ.

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Jeff Strickland - 20 May 2005 18:34 GMT

> If you're like most people, the brake fluid in the clutch cylinders is
> *original*. I would start by changing the whole brake fluid supply and the
> bleeding out the cylinders until they come out clean.

This job is alot like bleeding brakes, by the way.

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Somebody - 20 May 2005 20:36 GMT

> > If you're like most people, the brake fluid in the clutch cylinders is
> > *original*. I would start by changing the whole brake fluid supply and
> the
> > bleeding out the cylinders until they come out clean.
>
> This job is alot like bleeding brakes, by the way.

Yes, really a lot like it, since it is the same fluid supply. Most people
drain and bleed their brakes but there is stale brake fluid still in the
clutch cylinders. Mine was a gross brownish goop -- could have been
original for all I know. Never occured to me to bleed those while I was
doing brake fluid.

So, I'd recommend changing the fluid and bleeding all four corners plus the
clutch cylinders in the same operation.

-Russ.

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Jeff Strickland - 20 May 2005 18:32 GMT

You didn't give us any history, so if I assume that the clutch you have
today is the 2nd one, it is 10 years old. time alone is no indicator that
the clutch is worn out, but if you drive an average of 15,000 miles per
year, then you have 150,000 miles on it. If the clutch is the original one,
then you have well in excess of 200,000 miles, and are approaching 300,000
miles. In any case, it sounds like you need a new clutch.

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R. Mark Clayton - 20 May 2005 20:20 GMT

Depends how drive. II have never worn a clutch out in any manual car I had
and did lots of miles.

Signature

regards

Mark

--

R. Mark Clayton

> You didn't give us any history, so if I assume that the clutch you have
> today is the 2nd one, it is 10 years old. time alone is no indicator that
[quoted text clipped - 14 lines]
>> Visit Topic URL to contact author (reg. req'd). Report abuse:
> http://www.autoforumz.com/eform.php?p=587801

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Jeff Strickland - 21 May 2005 00:17 GMT

> Depends how drive.

This is certainly true. I just replaced the original factory clutch in my
'94 325i with 210,000 miles. I had a seriously worn throw out bearing that
was howling badly, but the clutch plate still had a millimeter or two
remaining.

I'm thinking that most people will not get the same clutch life that I get,
even if there are several here that do - or get better. Odds favor a 20-year
old clutch needing replacement, sh.t, the odds favor a clutch needing
replacement by 10 years.

II have never worn a clutch out in any manual car I had

> and did lots of miles.
>> You didn't give us any history, so if I assume that the clutch you have
[quoted text clipped - 16 lines]
>>> Visit Topic URL to contact author (reg. req'd). Report abuse:
>> http://www.autoforumz.com/eform.php?p=587801

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Somebody - 20 May 2005 20:38 GMT

> You didn't give us any history, so if I assume that the clutch you have
> today is the 2nd one, it is 10 years old. time alone is no indicator that
[quoted text clipped - 9 lines]
> > a new clutch or do i need to adjust something... please help me out
> > its a 1985 bmw 325e

Could be that, but I pulled my clutch out due to pilot bearing seizure, and
with 340,000 km on it and a date stamp of 5/88, it could easily have gone
back in. In fact it had more frictional material on it (thickness) than the
brand new Sachs clutch plate I put in.

A worn plate should not affect pedal feel like that, the stroke of the pedal
is controlled by the two hydraulic clutch cylinders. Slipping and
stuttering, yes, but not stroke. Now, he could have both problems, but
bleeding the clutch is a 1 hour job if you don't know what you're doing, and
changing the clutch is a good weekend job if you have a well equipped shop
and a friend who has done it before and all the parts lined up. So, I'd
start with the fluid.

-Russ.

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