John & Richard
Thanks for the advise. If the weather cools-off a little here in SE Michigan
the trans should be on the bench by the end of the week. I will update the
group with exactly what happened. Thanks again.
Regards,
Matt Van Benschoten
mvb@voyager.net
----- Original Message -----
From: "John T. Blair" <jblair@exis.net>
To: "Matt Van Benschoten" <mvb@voyager.net>
Cc: "CARS Spitfires@Autox. Team. Net (E-mail)" <spitfires@autox.team.net>
Sent: Saturday, June 22, 2002 9:32 AM
Subject: Re: 78 Spit clutch issue
> At 12:09 AM 6/22/02 -0400, Matt Van Benschoten wrote:
> >Help needed with a strange, to me, clutch issue on a 78 Spitfire. The
clutch
> >failed while I was driving the car a few weeks back. The failure mode is
> >engaged with a good pedal. While driving; the clutch all of a sudden
would
> >not release. The clutch pedal is still firm and feels very normal, i.e.
as
> >if the pressure plate/throw-out bearing are working. With the slave
cylinder
> >pinch bolt loose the slave cylinder moves toward the back of the car when
> >the pedal is pressed, as would be expected if it was working properly.
Any
> >ideas as to what might be happening?
>
> Matt,
>
> From the sounds of it, the MC is working and pushing fluid to the Slave
> clylinder. You loosed the bolt on the SL and it moves, therefore it
sounds
> like the pistion in the SL is moving. So my guess is that you have a
problem
> with something in the bellhousing, either the clutch pressure plate or
> face(drive) plate.
>
> I have seen some fingers on the pressure plate break. This would give you
> the feeling that the clutch system was working, hard resistance, movement
> of the parts, but since not all the fingers are being pressed, the
pressure
> plate would not completely release causing drag on the face plate.
>
> Other problems I've seen:
>
> 1. Burrs on the face plate so it didn't seat all the way on the splined
input
> shaft of the xmission, causing drag and not releasing.
>
> 2. A throw out bearing that is too short, there for not moving the
pressure
> plate enouggh to release the face plate.
>
> However these 2 problems are more common when replacing a clutch not on a
> a functioning system.
>
> 3. The fork connecting the slave cyl. to the thow out bearing bent or
cracked.
> This will let the system feel like it is working but the fork bends
instead
> of pressing the pressure plate.
>
> About anyway you slice it, you'll probably have to pull the tranny to
check
> things out.
>
> Hope this helps.
>
> John
>
> John T. Blair WA4OHZ email: jblair@exis.net
> Va. Beach, Va Phone: (757) 495-8229
>
> 48 TR1800 48 #4 Midget 65 Morgan 4/4 Series V
> 75 Bricklin SV1 77 Spitfire 71 Saab Sonett III
> 65 Rambler Classic
>
> Morgan: www.team.net/www/morgan
> Bricklin: www.bricklin.org
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