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Wrighty88
Spa-Francorchamps


Joined: 24 Oct 2013
Posts: 271



PostPosted: Mon Jan 26, 2015 12:19 pm    Post subject: Hardseat backs Reply with quote

I have acquired some whole 996 seats including the hard seat backs. I first need to remove the hard backs on some forums i have read that the centre section of seat is velcro'ed in. On others they are in using clips.

Then once inside its a simple thing of 2 screws and some clips and the backs come away.

can anyone confirm this or has any knowledge of removing the seat backs thanks Dan
 
  
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GT4
Nordschleife
Nordschleife


Joined: 08 Nov 2008
Posts: 30194
Location: Hertfordshire and Hampshire


PostPosted: Mon Jan 26, 2015 12:46 pm    Post subject: Reply with quote

http://www.renntech.org/forums/index.php/topic/4650-removing-hardbacks-from-sport-seats/
 
  
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tbrown
Paul Ricard


Joined: 05 May 2007
Posts: 3430
Location: Fra Mauro Highlands

2007 Porsche Cayman 987

PostPosted: Mon Jan 26, 2015 1:48 pm    Post subject: Reply with quote

Anyone know if it is it possible to remove the entire hardback from
the seat base and swap them over for the comfort seat backs?
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TB
Cayman S
Ex 996C4 Polar Silver 125k
Ex 996C2 Ocean Blue 143k
 
  
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GT4
Nordschleife
Nordschleife


Joined: 08 Nov 2008
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Location: Hertfordshire and Hampshire


PostPosted: Mon Jan 26, 2015 2:31 pm    Post subject: Reply with quote

Yes (seat base is shared).
 
  
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HSC911
Zolder


Joined: 23 Jul 2014
Posts: 5549
Location: Bedford


PostPosted: Mon Jan 26, 2015 3:00 pm    Post subject: Reply with quote

tbrown wrote:
Anyone know if it is it possible to remove the entire hardback from
the seat base and swap them over for the comfort seat backs?


If you have the sport hardbacks, and are looking to sell, then I'd be interested as I want a spare set to paint so I can keep my originals too.

Thumb
 
  
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medicus
Albert Park


Joined: 21 Oct 2014
Posts: 1518



PostPosted: Mon Jan 26, 2015 5:51 pm    Post subject: Reply with quote

ok, of course its possible to swap over the entire backs from one to the other, but from experience (I have done 2 such seat back swaps) I would say DONT, its an absolute nightmare, you might think its an easy swap over, well it might be if you posses some bizarre tools, and funny circlip pliers.
also the electrics are very awkward with the heating elements, as you have to swap everything, as the location of clips/wiring is different from the hard back to the comfort/normal seats.
after the first set of these where I did swap over the entire hard back onto my targa base, (so I had full electrics and memory) when it came to the second time, I opted for the complete seat swap, which just involves a wiring change to the main block that comes from the floor pan.
removing the backs for painting, is a breeze, but the clips that are used are like razor wire , and be very careful with the newly painted backs.
also (no eggs to suck here) be careful with the air bags, and pre tensioners, or you will throw a light (if you remove the battery, make sure you have the seat in the right position first so you can get to the 4 x torx.
if you don't have heated seat backs, or the memory module, its far easier.
if you need any help just PM me and ill call you.
regards
David.
 
  
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GT4
Nordschleife
Nordschleife


Joined: 08 Nov 2008
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PostPosted: Mon Jan 26, 2015 7:04 pm    Post subject: Reply with quote

The swap is possible, and I was assuming some basis for the predicament (eg tbrown has Comforts with worn base and Sports with worn back etc).

Of course swapping the whole unit off its runners is a lot easier.

Disconnecting the battery probably takes the longest (given you will need to allow 30 mins for the airbag firing circuits/capacitors to discharge/dissipate)
 
  
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medicus
Albert Park


Joined: 21 Oct 2014
Posts: 1518



PostPosted: Mon Jan 26, 2015 11:11 pm    Post subject: Reply with quote

you don't have to wait any time after disconnecting the battery, in the trade you just (after the battery has been removed) touch the positive cable to the negative cable, and any residual charge that is floating around will be released.it will not harm the car, or ECU's but if you have time on your hands
as GT4 rightly says a 15-30 mins will also do the trick.
 
  
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GT4
Nordschleife
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PostPosted: Mon Jan 26, 2015 11:23 pm    Post subject: Reply with quote

I prefer to let them discharge "naturally", as any protection diodes or induction isolator (induction transformer) may prevent forced discharge.

I have had a wack from dismantling a flash system (camera) even after shorting the battery terminals.

This was because the firing cap was charged up to many thousand of volts via a transformer, which has two isolated windings.

Simply shorting the input (primary) side of transformer has no effect on the output (secondary) circuit as they are electrically isolated (they are only coupled when a dynamic magnetic field is created in the primary).
 
  
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tbrown
Paul Ricard


Joined: 05 May 2007
Posts: 3430
Location: Fra Mauro Highlands

2007 Porsche Cayman 987

PostPosted: Tue Jan 27, 2015 12:25 am    Post subject: Reply with quote

Thanks for all the replies to my question.
I asked because I have heated memory comfort seats and
thought the easier option would be to change out the seat backs only.
I'm happy to sort out the electrics & airbags.

medicus, thanks for the offer of advice.
if I go ahead with the change, expect a pm Thumb
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TB
Cayman S
Ex 996C4 Polar Silver 125k
Ex 996C2 Ocean Blue 143k
 
  
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medicus
Albert Park


Joined: 21 Oct 2014
Posts: 1518



PostPosted: Tue Jan 27, 2015 10:25 am    Post subject: Reply with quote

on a tangent, when I swapped the bases on the first set of seats (C4's) that had the full electrics (back/side/lumbar/memory & heated, for the manual bases (hand leaver) I could not believe the weight difference, when both were swapped out, it was the same as a passenger in the car, as they weighed over 30 kg's each.
those full electric tombestones are very heave compared to hard back sports seats.
 
  
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tbrown
Paul Ricard


Joined: 05 May 2007
Posts: 3430
Location: Fra Mauro Highlands

2007 Porsche Cayman 987

PostPosted: Tue Jan 27, 2015 2:12 pm    Post subject: Reply with quote

medicus wrote:

after the first set of these where I did swap over the entire hard back onto my targa base, (so I had full electrics and memory)


Did you remove the entire seat from the car before removing the back
or did you do it in situ?
Main reason for me going this route, there are far more basic sport seats
available than ones with all the wiring.

Did you need to buy any fasteners/clips to finish the job?
Don't want to get half way through and find an order to porsche is required.
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TB
Cayman S
Ex 996C4 Polar Silver 125k
Ex 996C2 Ocean Blue 143k
 
  
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medicus
Albert Park


Joined: 21 Oct 2014
Posts: 1518



PostPosted: Tue Jan 27, 2015 5:02 pm    Post subject: Reply with quote

on both swaps I removed the seats from the car, as this takes about 5 mins per seat, its so easy, 4 torx bolts, and one connecter that's it.
 
  
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GT4
Nordschleife
Nordschleife


Joined: 08 Nov 2008
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PostPosted: Tue Jan 27, 2015 5:40 pm    Post subject: Reply with quote

Almost broke my back getting 993 hardbacks out, now they do weigh a lot!
 
  
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medicus
Albert Park


Joined: 21 Oct 2014
Posts: 1518



PostPosted: Tue Jan 27, 2015 6:52 pm    Post subject: Reply with quote

tbrown wrote:
medicus wrote:

after the first set of these where I did swap over the entire hard back onto my targa base, (so I had full electrics and memory)


Did you remove the entire seat from the car before removing the back
or did you do it in situ?
Main reason for me going this route, there are far more basic sport seats
available than ones with all the wiring.

Did you need to buy any fasteners/clips to finish the job?
Don't want to get half way through and find an order to porsche is required.


to be honest, if it was me again, knowing what I do now, this is what id do.
id buy a set of hardback sport seats, (paint them the colour of your car)with only the seat back electrics, and manual base forward/back, because lets be honest how many times do you actually adjust the forward/back, unless you share the car.
and the weight saving is huge, cost is cheaper, and install is a doddle.
keep the old seats for when you sell the car, and put the sports ones back on flea bay.

as long as you don't break anything, there is nothing to buy extra.
 
  
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infrasilver
Fast & Furious
Fast & Furious


Joined: 04 Oct 2010
Posts: 7865
Location: East Midlands

2001 Porsche 996 Targa

PostPosted: Tue Jan 27, 2015 11:23 pm    Post subject: Reply with quote

I currently have a pair of Hard Backs in my living room in bits as I'm stripping the backs for painting and I also need to re-dye the leather so if anyone needs a picture of anything in there let me know?
I'm currently at this stage, I'm also thinking of retro fitting heated seat pads whilst I'm this deep in.


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tbrown
Paul Ricard


Joined: 05 May 2007
Posts: 3430
Location: Fra Mauro Highlands

2007 Porsche Cayman 987

PostPosted: Tue Jan 27, 2015 11:48 pm    Post subject: Reply with quote

infrasilver, thanks for posting the picture.
I have just looked up the part nos and the frame is exactly the same
for both comfort and hardback seats. So is it just be a case of swapping
over the shell, cover and interior bits?
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TB
Cayman S
Ex 996C4 Polar Silver 125k
Ex 996C2 Ocean Blue 143k
 
  
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infrasilver
Fast & Furious
Fast & Furious


Joined: 04 Oct 2010
Posts: 7865
Location: East Midlands

2001 Porsche 996 Targa

PostPosted: Tue Jan 27, 2015 11:56 pm    Post subject: Reply with quote

tbrown wrote:
infrasilver, thanks for posting the picture.
I have just looked up the part nos and the frame is exactly the same
for both comfort and hardback seats. So is it just be a case of swapping
over the shell, cover and interior bits?


I guess it is just a case of that, although, finding where everything goes back may be a challenge, as there are a couple of clips that are in different to the others and the foam is glued to the hard back so requires careful peeling.
For what you want to do, a straight back swap would be easier than stripping if you don't need to.
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tbrown
Paul Ricard


Joined: 05 May 2007
Posts: 3430
Location: Fra Mauro Highlands

2007 Porsche Cayman 987

PostPosted: Wed Jan 28, 2015 9:31 am    Post subject: Reply with quote

infrasilver wrote:

For what you want to do, a straight back swap would be easier than stripping if you don't need to.


That was my original thinking, just didn't know if it could be done.
I think I now have all the options, Thanks guys. Thumb
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TB
Cayman S
Ex 996C4 Polar Silver 125k
Ex 996C2 Ocean Blue 143k
 
  
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medicus
Albert Park


Joined: 21 Oct 2014
Posts: 1518



PostPosted: Wed Jan 28, 2015 10:21 am    Post subject: Reply with quote

the problem lies with the long (18" bolt) that goes through the bottom of the hardback base / rear of seat base (where they connect)
its like the internals of a watch....springs/clips, and shells, it was very hard for me to get this back together (and working properly) and I know my way around a spanner.
but im sure someone more knowledgeable will know an easy way of doing it.

anybody?
 
  
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