pressure plate?

[southshoreTR7]

Went for a fun drive the other afternoon as as i pulled on to my street the clutch went dead.

What happens is that the clutch will not engage. it is the opposite of sticking to the pressure plate, it feels like it is not even touching the pressure plate. The car stars and runs great, I can shift into any gear but when I push down the clutch pedal nothing happens. the pedal feels a lot lighter than normal (as in takes much less force) with the pedal all the way down you can hear what sounds like the clutch just about to bite and if you hold it then eventually you will smell it. with the pedal all the way up (not being touched) you can shift but get no motion at all.

There are no leaks, the clutch fluid looks good and is not low.

to summarize; the car has not motion (forward or reverse), when you depress the clutch pedal it sounds like it is getting close to touching but that is the opposite of what should be happening when you press the clutch pedal.

I am thinking this is the pressure plate failed but I am not sure. I am looking for any suggestions possible.



1980 Tr7 DHC

[Marko]

fork was worn trough on its pivot?

[busheytrader]

When the fork wore through the pivot on mine, the pedal went all the way down, then returned all the way back up and went solid.............


Adam



TR7 V8 DHC Jaguar Solent Blue. 9.35cr Range Rover V8, Holley 390cfm, JWR Dual Port, 214 Cam, Lumention, Tubular Manifolds, S/S Single Pipe Exh, 3.08 Rear, 200lb Spax & PolyBushes all round, Anti- Dive, Strut-Top Roller Bearings, Capri Vented Discs & Calipers, Braided Hoses, 4 Speed Rear Cylinders, Uprated Master Cylinder & Servo, AT 14" 5 Spokes or Maestro Turbo 15" Alloys, Cruise Lights, S/S Heater Pipes, Replacement Fuel Tank. No Door Stickers. Mine since July 1986, V8 from 1991 courtesy of S&S V8 conversion and big brake kits.

[saabfast]

Could be completely shot master or slave seals, or the connecting pipe ballooning with pressure, although that normally does give some operation before it splits.

Alan
Saab 9000 Stg 1
Saab 9000 2.3 FPT Auto
Saab 2.3 LPT Auto
'81 TR7 DHC

[Stag76]

<blockquote id="quote"><font size="1" face="Century Gothic, Verdana, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote"> with the pedal all the way up (not being touched) you can shift but get no motion at all.

<hr height="1" noshade id="quote"></font id="quote"></blockquote id="quote">
The Hydraulic System dis-engages the clutch...if the pedal is up and there is no motion a broken pressure plate is usually the cause.

TR7 Convertible
Sprint Motor
MegaSquirt EFI

[willywonka]

Possibly the slave cylinder has siezed in the outward position as well.

It happened to mine recently and it was just a case of removing it, freeing up the piston and refitting and rebleeding.
Job done.



All the Gear, no idea

[southshoreTR7]

<blockquote id="quote"><font size="1" face="Century Gothic, Verdana, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote"><i>Originally posted by Stag76</i>


[quote] with the pedal all the way up (not being touched) you can shift but get no motion at all.

<hr height="1" noshade id="quote"></font id="quote"></blockquote id="quote">
The Hydraulic System dis-engages the clutch...if the pedal is up and there is no motion a broken pressure plate is usually the cause.

TR7 Convertible
Sprint Motor
MegaSquirt EFI
<hr height="1" noshade id="quote"></font id="quote"></blockquote id="quote">

This is what I am thinking and dreading.

thank you all for the responses and help.

1980 Tr7 DHC