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deano
 
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Default clutch mystery - 08-21-2006 , 04:50 PM






i love my 1993 900s(298k miles---90% highway).
several weeks ago, when releasing the clutch, the clutch pedal
exhibited a 'pulse' at the top of the pedal arc. the 'pulse' could not
be felt when depressing the clutch---only when releasing and only near
the upper 1/4 of the pedal arc. interestingly, the 'pulse' could be
felt with the engine running OR at rest!
this 'pulse' was intermittent for a week, went away and is now a
permanent 'feature'.
now, the 'pulse' has gotten more pronounced AND, rarely, the clutch
grabs very unexpectedly hard and nearly stalls the car.
pedal pressure seems fine. thow out bearing has been making noise for
years and does not seem any louder. shifting is fine. no fluid leaks.
please help! thanks, dean


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Richard Sutherland-Smith
 
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Default Re: clutch mystery - 08-21-2006 , 06:04 PM






In message <1156193425.624222.76350 (AT) m79g2000cwm (DOT) googlegroups.com>
"deano" <dnorin (AT) phz (DOT) com> wrote:

Quote:
i love my 1993 900s(298k miles---90% highway).
several weeks ago, when releasing the clutch, the clutch pedal
exhibited a 'pulse' at the top of the pedal arc. the 'pulse' could not
be felt when depressing the clutch---only when releasing and only near
the upper 1/4 of the pedal arc. interestingly, the 'pulse' could be
felt with the engine running OR at rest!
this 'pulse' was intermittent for a week, went away and is now a
permanent 'feature'.
now, the 'pulse' has gotten more pronounced AND, rarely, the clutch
grabs very unexpectedly hard and nearly stalls the car.
pedal pressure seems fine. thow out bearing has been making noise for
years and does not seem any louder. shifting is fine. no fluid leaks.
please help! thanks, dean

Wear in the clevis pin hole where the pedal attaches to the clutch
master cylinder. My 9000 Aero does that, it is a design feature!

--
Richard and Mary Sutherland-Smith
19 Webb Road, Wanganui 4500
New Zealand


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  #3  
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deano
 
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Default Re: clutch mystery - 08-21-2006 , 06:24 PM




i should have said that i checked the pedal hole wear. i wish it was
that simple! thanks, dean


Richard Sutherland-Smith wrote:
Quote:
In message <1156193425.624222.76350 (AT) m79g2000cwm (DOT) googlegroups.com
"deano" <dnorin (AT) phz (DOT) com> wrote:

i love my 1993 900s(298k miles---90% highway).
several weeks ago, when releasing the clutch, the clutch pedal
exhibited a 'pulse' at the top of the pedal arc. the 'pulse' could not
be felt when depressing the clutch---only when releasing and only near
the upper 1/4 of the pedal arc. interestingly, the 'pulse' could be
felt with the engine running OR at rest!
this 'pulse' was intermittent for a week, went away and is now a
permanent 'feature'.
now, the 'pulse' has gotten more pronounced AND, rarely, the clutch
grabs very unexpectedly hard and nearly stalls the car.
pedal pressure seems fine. thow out bearing has been making noise for
years and does not seem any louder. shifting is fine. no fluid leaks.
please help! thanks, dean

Wear in the clevis pin hole where the pedal attaches to the clutch
master cylinder. My 9000 Aero does that, it is a design feature!

--
Richard and Mary Sutherland-Smith
19 Webb Road, Wanganui 4500
New Zealand


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