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1980 928 clutch return

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Old Jun 25, 2021 | 12:28 PM
  #1  
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Question 1980 928 clutch return

Hi, in process of reviving my neglected garaged 928s. The clutch depress but does not return freely. ?? Fluid, slave, ?? Ideas ! Thanks, Larry
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Old Jun 25, 2021 | 03:29 PM
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if you have questions like this i would suggest that you revive the whole clutch system
pilot brg
TOB,
guide tube,
discs,
PP,
release arm bushing,
master cylinder modded to an 75mm length with a reduced length coil spring.
new blue hose,
new slave,
new Greg Brown flex line from the swaybar mount to the slave,
replaces the flex and short hard line over the starter .
while your at it get a new master cylinder and brake booster swap those in as well.
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Old Jun 25, 2021 | 04:05 PM
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Originally Posted by Mrmerlin
if you have questions like this i would suggest that you revive the whole clutch system
pilot brg
TOB,
guide tube,
discs,
PP,
release arm bushing,
master cylinder modded to an 75mm length with a reduced length coil spring.
new blue hose,
new slave,
new Greg Brown flex line from the swaybar mount to the slave,
replaces the flex and short hard line over the starter .
while your at it get a new master cylinder and brake booster swap those in as well.
Thanks, Greg Brown. I read last night thru the many comments on the “Barn Find” clutch saga. Whew !
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Old Jun 25, 2021 | 04:12 PM
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Thanks Mrmerlin for the comments regarding the GB hose ! I assumed a complete clutch review is necessary and thought a return spring might be the problem as I had on a car any years ago. , Larry
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Old Jun 25, 2021 | 04:58 PM
  #5  
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NOTE replacing one part guarantees others will soon fail then you can revisit this issue again soon.
my suggestion is to fix it once and move on.
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Old Jun 26, 2021 | 09:14 AM
  #6  
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Originally Posted by Mrmerlin
if you have questions like this i would suggest that you revive the whole clutch system
pilot brg
TOB,
guide tube,
discs,
PP,
release arm bushing,
master cylinder modded to an 75mm length with a reduced length coil spring.
new blue hose,
new slave,
new Greg Brown flex line from the swaybar mount to the slave,
replaces the flex and short hard line over the starter .
while your at it get a new master cylinder and brake booster swap those in as well.
Don't gloss over the highlighted item in Stan's response
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Old Jun 26, 2021 | 02:12 PM
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It sounds counterintuitive but when there is air in the clutch hydraulic system the pressure plate cannot push the pedal back into position (cannot overcome the assist spring).
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Old Aug 3, 2021 | 10:37 PM
  #8  
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Default ‘80 928 clutch.

Raised and reverse gear engages, forward(2nd) engages sporadically then coasts to stop even though engine at 1500 rpm. Stopped as didn’t want to overheat the clutch. Mice had feasted in my sunflower seed and shared space in the engine compartment. I’m humiliated but ask for advice with this status
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Old Jul 17, 2024 | 01:37 PM
  #9  
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HI Marlin
What is "TOB" and
What is PP
Regards

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Old Jul 17, 2024 | 01:45 PM
  #10  
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Throw out bearing.
Pressure plate.
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Old Jul 17, 2024 | 02:25 PM
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Hi Mr Merlin

What is "TOB" ?
and "PP" ?

Regards
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Old Jul 18, 2024 | 12:15 PM
  #12  
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Kevin answered it correctly in post 10
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Old Jul 27, 2024 | 02:20 PM
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Would anyone recommend going to a single clutch vs. replacing the dual clutch?
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Old Jul 27, 2024 | 02:59 PM
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Originally Posted by Fugi
Would anyone recommend going to a single clutch vs. replacing the dual clutch?
I don't know what others might suggest, but I personally prefer the earlier clutch. I'm not sure why anyone would switch from one system to the other, as they're both robust and adequate for their respective applications.
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Old Jul 27, 2024 | 03:13 PM
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Thanks for your prompt reply. Who do you think is the resident dual clutch installation and troubleshooting professional in the US?
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