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Ghianightmare
Spa-Francorchamps


Joined: 25 Apr 2017
Posts: 341
Location: Dublin


PostPosted: Mon Mar 04, 2019 8:48 pm    Post subject: Very Heavy Clutch and Sore foot Reply with quote

I noticed my clutch pedal getting very heavy lately as my right foot is getting sore when in traffic.

I think it has gradually being getting worse as it wasn’t a instant thing. The clutch itself was replaced about 30k miles ago. I’m not sure if the pressure plate was replaced. I got it bled out when I changed brake fluid Last year, and I commented to the mechanic that it felt different in a not too great way afterwards, but it was working, so off I went.

I though it was bad until I sat into a 2003 C4S yesterday and the clutch on that was as easy as slicing custard. I couldn’t believe it. Mine is worse than I thought.

Clutch ope.ration is good apart from heavy pedal. I want to rule out the simple stuff before I consider taking out the box to check all the internals of the clutch bits

So I thought maybe the power assist spring was shot or removed, so I squeezed under the dash to have a look - what a crap position... - but the spring seems to be OK.

So my question is a man maths one - which should I do first?

A. Buy a new power spring and see if it makes any difference (which I can do myself)

Or

B. Change the slave cylinder first ( which I could do myself, but I couldn’t be arsed rolling around the gravel driveway so I’ll take it to a garage)

A is cheaper but may be not the problem. B is more expensive, but also may not be the problem. But which is more likely to yield results? And my foot is even sore walking now Confused
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2002 Seal Grey C4S

Last edited by Ghianightmare on Mon Mar 04, 2019 8:51 pm; edited 1 time in total
 
  
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GMG
Nürburgring


Joined: 07 Jan 2018
Posts: 386
Location: Devon


PostPosted: Mon Mar 04, 2019 8:51 pm    Post subject: Reply with quote

...sell it and buy a Tip' ?
 
  
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wasz
Sepang


Joined: 28 Dec 2012
Posts: 2950


1999 Porsche 996 Carrera 2

PostPosted: Mon Mar 04, 2019 9:07 pm    Post subject: Reply with quote

Did they grease the input splines when they changed the clutch?

Another reason I do my own work.....

Mine was mega heavy when I changed it, the whole lot was dry - but it was old and worn out.

New clutch, cover, release bearing and flywheel, new slave and bled through fixed it.
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Ghianightmare
Spa-Francorchamps


Joined: 25 Apr 2017
Posts: 341
Location: Dublin


PostPosted: Mon Mar 04, 2019 9:42 pm    Post subject: Reply with quote

Hi Wazz, there was a clutch kit fitted - bearing, pressure plate and clutch plate. It was done by TWG specialists in Peterborough- but I have no way of knowing if they lubed th splines other than the fact they seem to be a well know specialist.

I don’t want to spend money on taking out the box until I have tackled the low hanging fruit - hence my dilemma of A or B

Thanks
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sportsandclassic
Approved Trader


Joined: 21 Apr 2008
Posts: 262
Location: Nether Alderley Cheshire


PostPosted: Mon Mar 04, 2019 11:16 pm    Post subject: Reply with quote

Hi, I would try the assist spring.

Take it off and see if it’s snapped in two...

Costs nothing if OK...?

Mike
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infrasilver
Fast & Furious
Fast & Furious


Joined: 04 Oct 2010
Posts: 8310
Location: East Midlands

2001 Porsche 996 Targa

PostPosted: Mon Mar 04, 2019 11:17 pm    Post subject: Reply with quote

I changed my slave cylinder last year and it made a load of difference the clutch pedal weight and the whole system just felt smoother.

I also changed my pedal helper spring some time ago which also made a difference.

Both worth doing in my opinion.
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Ghianightmare
Spa-Francorchamps


Joined: 25 Apr 2017
Posts: 341
Location: Dublin


PostPosted: Tue Mar 05, 2019 7:09 pm    Post subject: Reply with quote

Thanks for that infrasilver
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2002 Seal Grey C4S
 
  
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demon
Spa-Francorchamps


Joined: 19 Apr 2011
Posts: 303



PostPosted: Wed Mar 06, 2019 8:09 am    Post subject: Reply with quote

I think there has been at least one recall/revision re. the helper spring i.e. that one bought now could well be beefier/smoother than some early cars were originally fitted with..... whether or not that applies in your case....

- far easier place to start, although I'd probably look to do both as mentioned
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1998 Carrera - Black, no sunroof, manual, cable throttle, IPD plenum, 200 cell x pipe, cargraphic backboxes, Ohlins R&T, LSD, polybushed, Girodisc brakes, custom ("shaved") GT3 RS decklid, 997 sports seats, litronic headlights, RUF wing mirrors, Hartech rebuild, >240,000 miles
 
  
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Ghianightmare
Spa-Francorchamps


Joined: 25 Apr 2017
Posts: 341
Location: Dublin


PostPosted: Sun Mar 24, 2019 1:37 pm    Post subject: Reply with quote

I found a partial fix...

I was out walking in the rain, and the shoes that I wear mostly when driving started letting in water and had clearly served their purpose. So I bought replacements.

I haven’t had a sore foot since I bought new shoes... i kid you not... and while the clutch is heavier than other cars, it’s not a problem driving it with other shoes Embarassed

Kinda supports the theory of starting with the simple stuff first.

I will pop out the power assist spring in the near future and replace it.

I have a part number for the shoes I bought M&S39.50 Thumb
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Phil 997
Le Mans
Le Mans


Joined: 05 Dec 2015
Posts: 15279
Location: Bournemouth,Dorset

2009 Porsche 997 Carrera 4S

PostPosted: Sun Mar 24, 2019 1:49 pm    Post subject: Reply with quote

Ghianightmare wrote:
I found a partial fix...

I was out walking in the rain, and the shoes that I wear mostly when driving started letting in water and had clearly served their purpose. So I bought replacements.

I haven’t had a sore foot since I bought new shoes... i kid you not... and while the clutch is heavier than other cars, it’s not a problem driving it with other shoes Embarassed

Kinda supports the theory of starting with the simple stuff first.

I will pop out the power assist spring in the near future and replace it.

I have a part number for the shoes I bought M&S39.50 Thumb


Floor Floor Floor that made me laugh Thumb
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James M-S
Suzuka


Joined: 11 Apr 2017
Posts: 1028
Location: Derbyshire

2009 Porsche 997 Carrera 2

PostPosted: Sun Mar 24, 2019 8:08 pm    Post subject: Reply with quote

Floor

Adidas Dragons for me.....
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996mike
Trainee


Joined: 25 Feb 2016
Posts: 86



PostPosted: Mon Mar 25, 2019 10:28 am    Post subject: Reply with quote

I bought a Tip for this very reason drove a mates 996 c2 and knew I had to get a 911 but the clutch felt very heavy even he rarely used to drive to work because of stop start driving. Test driving be a Tip and that was it sold,,,,,
 
  
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Ghianightmare
Spa-Francorchamps


Joined: 25 Apr 2017
Posts: 341
Location: Dublin


PostPosted: Thu Jul 25, 2019 9:42 pm    Post subject: Reply with quote

So Hartech picked up on my heavy clutch when testing the car - with a new clutch and flywheel, so they replaced the pedal assist spring (which looked ok) and hey presto - a nice normal clutch pedal again.
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2002 Seal Grey C4S
 
  
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Marky911
Indianapolis


Joined: 04 Jun 2009
Posts: 2457



PostPosted: Thu Jul 25, 2019 10:43 pm    Post subject: Re: Very Heavy Clutch and Sore foot Reply with quote

Ghianightmare wrote:
I noticed my clutch pedal getting very heavy lately as my right foot is getting sore when in traffic.




That could be your problem. I always use my left foot for the clutch. Very Happy

Seriously though, Im glad it’s sorted and was an easy fix. Thumb
 
  
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Ghianightmare
Spa-Francorchamps


Joined: 25 Apr 2017
Posts: 341
Location: Dublin


PostPosted: Thu Jul 25, 2019 10:53 pm    Post subject: Reply with quote

Very Happy

How did I make that mistake!?
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2002 Seal Grey C4S
 
  
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Paynewright
Monza


Joined: 17 Apr 2018
Posts: 195
Location: Nr Lutterworth Leics


PostPosted: Fri Jul 26, 2019 2:13 am    Post subject: Reply with quote

Mine just had new clutch (still on original at 87k miles), flywheel and helper spring and gone from unbearably heavy to light as a feather.

I’m afraid to tell SWMBO as it was the heavy clutch putting her off driving it!
 
  
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Ghianightmare
Spa-Francorchamps


Joined: 25 Apr 2017
Posts: 341
Location: Dublin


PostPosted: Fri Jul 26, 2019 6:41 am    Post subject: Reply with quote

The “unbearably heavy” bit sounds familiar! I’m glad you sorted it and I’m glad mine is sorted; if I had arrived to pick up the car and it still felt the same I would have been miffed - not at Hartech - at the car! It would have probably dampened the emotions of my first drive with the 3.9 as my brain would be thinking “all that money with new clutch and flywheel and it’s still heavy”

I’m now starting to get exiticed about getting it back next week. Very Happy
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