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Grey996
Spa-Francorchamps


Joined: 24 Jan 2017
Posts: 252
Location: Sheffield


PostPosted: Mon Apr 16, 2018 8:20 pm    Post subject: Suspension top mounts -,what bits will I need? Reply with quote

An impulse purchase of lowering springs has opened up the usual 'while I'm at it jobs' can of worms!

Having swapped springs on other cars before I know the top mounts are usually knackered but I'm not sure what bits I'll need and want to get them beforehand so I don't have any lost time when I take the old ones off.

I've found the Sachs front top mounts for £41.50 which seems very good but I'm hoping I don't need the mounting overhaul kit for £137.89 plus vat each side and they don't seem to include the bearing?

https://www.cartech-one.co.uk/en/product/69995-2x-top-mount/v-16460

http://www.design911.co.uk/fu/pt385_1353_-cma81-cmo110-ct347/Porsche/996--911--1997-05/996-C2-3-6L-09-01-2005/Shock-Absorber-Parts-Front/

Any advice appreciated

I'll also be removing the wheel arch liners for a good clean and inspection so feel free to suggest more jobs to do while I'm at it.

Simon
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G-996
Newbie


Joined: 03 Apr 2018
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PostPosted: Mon Apr 16, 2018 8:38 pm    Post subject: Reply with quote

I cheated by having a top mount replaced by someone else (Centre Gravity). One thing they also did is quickly strip, clean and regrease the top mount bearing. You could always buy new ones if you wanted to - but it seemed very straightforward when they did this.
 
  
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Grey996
Spa-Francorchamps


Joined: 24 Jan 2017
Posts: 252
Location: Sheffield


PostPosted: Mon Apr 16, 2018 8:47 pm    Post subject: Reply with quote

G-996 wrote:
I cheated by having a top mount replaced by someone else (Centre Gravity). One thing they also did is quickly strip, clean and regrease the top mount bearing. You could always buy new ones if you wanted to - but it seemed very straightforward when they did this.


Thanks that sounds promising, do you know what new top mounts they used?
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G-996
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PostPosted: Mon Apr 16, 2018 10:53 pm    Post subject: Reply with quote

They used a Porsche OEM top mount. Rather pricey!
 
  
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Leon1davies
Hockenheim


Joined: 04 Oct 2015
Posts: 686
Location: Bournemouth


PostPosted: Tue Apr 17, 2018 6:05 am    Post subject: Reply with quote

Just done this and advice from OPC was the actual top mount housing very rarely needs replacing...its the bearing, rubber, metal plates and washers that that need changing.


http://www.design911.co.uk/fu/prod71137/Shock-Absorber-Mounting-Overhaul-Kit-FRONT-Porsche-996-C2/

I know its pricey but when I took my old one off I could see why they recommend replacing it all. The bearing element just fell apart in my hands...rubber didn't look too bad and nor did the washers.
 
  
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adamw
Estoril


Joined: 09 Jul 2009
Posts: 3786
Location: West Sussex

2002 Porsche 996 Turbo

PostPosted: Tue Apr 17, 2018 6:54 am    Post subject: Reply with quote

I need to do this on my turbo real soon and have been quoted circa £1200 to supply and fit new OEM top mounts and also do a wheel align after.

Just out of interest, can anyone recommend alternative after market mounts that are just as good (if not better) than OEM but maybe a little cheaper Laughing
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EX : 95' 993 C4 Coupe ( Dec 10 - Oct 16 )
EX : 00' 996 C2 Cab ( Jul 09 - Oct 10 )
EX : 03' 986 Boxster S ( May 06 - Dec 08 )
 
  
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Fastlane
Spa-Francorchamps


Joined: 05 Mar 2017
Posts: 344
Location: Truro


PostPosted: Tue Apr 17, 2018 7:27 am    Post subject: Reply with quote

adamw wrote:
I need to do this on my turbo real soon and have been quoted circa £1200 to supply and fit new OEM top mounts and also do a wheel align after.

Just out of interest, can anyone recommend alternative after market mounts that are just as good (if not better) than OEM but maybe a little cheaper Laughing


The C4, C4S and turbo all share the same top mounts -I have a C4. I was quoted £1625 by OPC Exeter to replace mine at my last service. I sourced them via https://www.ebay.co.uk/itm/Porsche-996-Carrera-4-4S-Turbo-Front-Damper-Top-Strut-Mount-RIGHT/332402876591?fits=Car+Make%3APorsche%7CPlat_Gen%3A996&hash=item4d64c160af:g:0hUAAOSwKUNZ1qfa

I rang them up and it turns out that Spider Performance is owned by Eporsche who are a well respected Porsche specialist. Dean, one of the directors there, assured me that thee were good quality and did me a deal over the phone - £320 including the Porsche bump stops (as mine were knackered and OPC Exeter quoted me £520!) I also rang Williams Crawford in Plymouth and they quoted £1200 including the Hamburg top mounts and bearings and again said they were good. In the end I got my local classic car garage to fit them for £360. Just need to have an alignment done now.

Both ECP and Carparts4less also stock them at a similar price when on deal.
_________________
Currently Porsche-less, Ariel Atom 3 310
Past:
2001 Zanzibar Red 996.1 C4
1992 Zermatt Silver 964 turbo
1991 Midnight Blue 964 turbo
1994 Guards Red 968 Sport
1987 Baltic Blue 928 S4 auto
 
  
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Grey996
Spa-Francorchamps


Joined: 24 Jan 2017
Posts: 252
Location: Sheffield


PostPosted: Tue Apr 17, 2018 7:28 am    Post subject: Reply with quote

Leon1davies wrote:
Just done this and advice from OPC was the actual top mount housing very rarely needs replacing...its the bearing, rubber, metal plates and washers that that need changing.


http://www.design911.co.uk/fu/prod71137/Shock-Absorber-Mounting-Overhaul-Kit-FRONT-Porsche-996-C2/

I know its pricey but when I took my old one off I could see why they recommend replacing it all. The bearing element just fell apart in my hands...rubber didn't look too bad and nor did the washers.


Thanks, i’ll hold off on the top mounts then, hopefully they’ll be ok. That kit seems very expensive, i’ll see if I can find just the bearing some where.
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adamw
Estoril


Joined: 09 Jul 2009
Posts: 3786
Location: West Sussex

2002 Porsche 996 Turbo

PostPosted: Tue Apr 17, 2018 8:41 am    Post subject: Reply with quote

Fastlane wrote:
adamw wrote:
I need to do this on my turbo real soon and have been quoted circa £1200 to supply and fit new OEM top mounts and also do a wheel align after.

Just out of interest, can anyone recommend alternative after market mounts that are just as good (if not better) than OEM but maybe a little cheaper Laughing


The C4, C4S and turbo all share the same top mounts -I have a C4. I was quoted £1625 by OPC Exeter to replace mine at my last service. I sourced them via https://www.ebay.co.uk/itm/Porsche-996-Carrera-4-4S-Turbo-Front-Damper-Top-Strut-Mount-RIGHT/332402876591?fits=Car+Make%3APorsche%7CPlat_Gen%3A996&hash=item4d64c160af:g:0hUAAOSwKUNZ1qfa

I rang them up and it turns out that Spider Performance is owned by Eporsche who are a well respected Porsche specialist. Dean, one of the directors there, assured me that thee were good quality and did me a deal over the phone - £320 including the Porsche bump stops (as mine were knackered and OPC Exeter quoted me £520!) I also rang Williams Crawford in Plymouth and they quoted £1200 including the Hamburg top mounts and bearings and again said they were good. In the end I got my local classic car garage to fit them for £360. Just need to have an alignment done now.

Both ECP and Carparts4less also stock them at a similar price when on deal.


Many thanks - that’s very helpful indeed thumbsup
_________________
02' 996 Turbo Manual Coupe, Seal Grey

EX : 95' 993 C4 Coupe ( Dec 10 - Oct 16 )
EX : 00' 996 C2 Cab ( Jul 09 - Oct 10 )
EX : 03' 986 Boxster S ( May 06 - Dec 08 )
 
  
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upforit365
Newbie


Joined: 11 Feb 2008
Posts: 40



PostPosted: Tue Apr 17, 2018 10:09 am    Post subject: Reply with quote

I used the VM top mounts sold by ECP on my turbo. No problems thus far and all the creaking noises that we’re there before are gone.
 
  
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Fastlane
Spa-Francorchamps


Joined: 05 Mar 2017
Posts: 344
Location: Truro


PostPosted: Tue Apr 17, 2018 10:38 am    Post subject: Reply with quote

upforit365 wrote:
I used the VM top mounts sold by ECP on my turbo. No problems thus far and all the creaking noises that we’re there before are gone.


Apparently "VM" means vehicle manufacturer - I only found this out last week. Did they have a 996 part number n them?
_________________
Currently Porsche-less, Ariel Atom 3 310
Past:
2001 Zanzibar Red 996.1 C4
1992 Zermatt Silver 964 turbo
1991 Midnight Blue 964 turbo
1994 Guards Red 968 Sport
1987 Baltic Blue 928 S4 auto
 
  
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wasz
Magny-Cours


Joined: 28 Dec 2012
Posts: 2638


1999 Porsche 996 Carrera 2

PostPosted: Tue Apr 17, 2018 11:26 am    Post subject: Reply with quote

For a c2 use Sachs brand top mounts, they are OE mine came with Porsche number ground off.

For C4 c4s use 997 4wd top mounts as they are much cheaper for some reason.

Bearings from OPC I'd you need ask for a discount.

I recoated all my washers and hatdware and re used.

Also try autodoc for a European choice of parts
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My special order Vesuvious Charcoal 996 | Clutch, Fly RMS IMS AOS Job |
Steering Rack Hard Lines | Air Con Compressor / System
 
  
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peterzoom
Monza


Joined: 25 Jul 2016
Posts: 185


2001 Porsche 996 Carrera 4

PostPosted: Tue Apr 17, 2018 12:12 pm    Post subject: Reply with quote

wasz wrote:
For a c2 use Sachs brand top mounts, they are OE mine came with Porsche number ground off.

For C4 c4s use 997 4wd top mounts as they are much cheaper for some reason.

Bearings from OPC I'd you need ask for a discount.

I recoated all my washers and hatdware and re used.

Also try autodoc for a European choice of parts


Very interesting, do you mind me asking how do you know that the 997 mounts fit the c4 996?
 
  
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Paynewright
Trainee


Joined: 17 Apr 2018
Posts: 54
Location: Nr Lutterworth Leics


PostPosted: Tue Apr 17, 2018 1:15 pm    Post subject: Reply with quote

I've been into Centre Gravity to chat about set up (planning to fit new shocks soon) and they advised, in general, top mounts/hardware is OK. Recommended taking the bearing apart, cleaning and re-greasing.

Ian
 
  
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Fastlane
Spa-Francorchamps


Joined: 05 Mar 2017
Posts: 344
Location: Truro


PostPosted: Tue Apr 17, 2018 1:49 pm    Post subject: Reply with quote

peterzoom wrote:
wasz wrote:
For a c2 use Sachs brand top mounts, they are OE mine came with Porsche number ground off.

For C4 c4s use 997 4wd top mounts as they are much cheaper for some reason.

Bearings from OPC I'd you need ask for a discount.

I recoated all my washers and hatdware and re used.

Also try autodoc for a European choice of parts


Very interesting, do you mind me asking how do you know that the 997 mounts fit the c4 996?


I read all the threads about using 997 top mounts and the consensus from those who know (i.e. the Porsche Specialists) seemed to be was that they are different - if they weren't they would have the same part number from Porsche - the angle that the damper is held is slightly different and this will therefore affect the amount of adjustment available on the front suspension. Given the extra cost of the correct ones if you buy Hamburg (c.£80 for both) and the cost of the work involved in changing them again if they are wrong, as well as setting up the suspension correctly afterwards, then I didn't think it was worth the risk.

I am not sure, but has anybody asked Centre Gravity?
_________________
Currently Porsche-less, Ariel Atom 3 310
Past:
2001 Zanzibar Red 996.1 C4
1992 Zermatt Silver 964 turbo
1991 Midnight Blue 964 turbo
1994 Guards Red 968 Sport
1987 Baltic Blue 928 S4 auto
 
  
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demon
Spa-Francorchamps


Joined: 19 Apr 2011
Posts: 288



PostPosted: Tue Apr 17, 2018 2:25 pm    Post subject: Reply with quote

Grey996 wrote:
Leon1davies wrote:
Just done this and advice from OPC was the actual top mount housing very rarely needs replacing...its the bearing, rubber, metal plates and washers that that need changing.


http://www.design911.co.uk/fu/prod71137/Shock-Absorber-Mounting-Overhaul-Kit-FRONT-Porsche-996-C2/

I know its pricey but when I took my old one off I could see why they recommend replacing it all. The bearing element just fell apart in my hands...rubber didn't look too bad and nor did the washers.


Thanks, i’ll hold off on the top mounts then, hopefully they’ll be ok. That kit seems very expensive, i’ll see if I can find just the bearing some where.


Is the following what you are after?

www.design911.co.uk/fu/prod7031/Groove-Ball-Bearing-Porsche-996---9Porsche-996-Shock-Absorber-Groove-Ball-Bearing--9963435150597---986---987/

note: always worth using the part number to check price and availability with an OPC....
_________________
1998 Carrera - Black, no sunroof, manual, Ohlins R&T, LSD, polybushed, Girodisc brakes, custom ("shaved") GT3 RS decklid, 997 sports seats, litronic headlights, RUF mirrors (still in progress!)
 
  
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Stoo.c
Monza


Joined: 07 Apr 2014
Posts: 190
Location: Hertfordshire


PostPosted: Tue Apr 17, 2018 4:05 pm    Post subject: Reply with quote

Fastlane wrote:
peterzoom wrote:
wasz wrote:
For a c2 use Sachs brand top mounts, they are OE mine came with Porsche number ground off.

For C4 c4s use 997 4wd top mounts as they are much cheaper for some reason.

Bearings from OPC I'd you need ask for a discount.

I recoated all my washers and hatdware and re used.

Also try autodoc for a European choice of parts


Very interesting, do you mind me asking how do you know that the 997 mounts fit the c4 996?


I read all the threads about using 997 top mounts and the consensus from those who know (i.e. the Porsche Specialists) seemed to be was that they are different - if they weren't they would have the same part number from Porsche - the angle that the damper is held is slightly different and this will therefore affect the amount of adjustment available on the front suspension. Given the extra cost of the correct ones if you buy Hamburg (c.£80 for both) and the cost of the work involved in changing them again if they are wrong, as well as setting up the suspension correctly afterwards, then I didn't think it was worth the risk.

I am not sure, but has anybody asked Centre Gravity?


The difference indeed being that you will have less adjustment using the 997 ones on the 996 but if you are running standard specs this shouldn't be a problem. The cheaper aftermarket ones (Hamburg etc) aren't available for the 4/4S/T or at least they weren't when I last checked. Only options were genuine Porsche either 996 or 997 and for some reason the 996 ones are crazy money.
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Fastlane
Spa-Francorchamps


Joined: 05 Mar 2017
Posts: 344
Location: Truro


PostPosted: Tue Apr 17, 2018 4:49 pm    Post subject: Reply with quote

Stoo.c wrote:
The cheaper aftermarket ones (Hamburg etc) aren't available for the 4/4S/T or at least they weren't when I last checked. Only options were genuine Porsche either 996 or 997 and for some reason the 996 ones are crazy money.


Aftermarket ones are available (and have been for some time as far as I know) as I said above, at about £130 each. These fit both standard and M030 (-10mm, which I have) suspension. Only the X74 cars (-30mm from standard) have different top mounts again which are, as you say, crazy money and seem to only be available from Porsche. Lots of sites (Design911 for one) seemingly incorrectly confuse the M030 and X74 and say the standard top mounts won't fit M030, which they do.
_________________
Currently Porsche-less, Ariel Atom 3 310
Past:
2001 Zanzibar Red 996.1 C4
1992 Zermatt Silver 964 turbo
1991 Midnight Blue 964 turbo
1994 Guards Red 968 Sport
1987 Baltic Blue 928 S4 auto
 
  
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Grey996
Spa-Francorchamps


Joined: 24 Jan 2017
Posts: 252
Location: Sheffield


PostPosted: Tue Apr 17, 2018 5:27 pm    Post subject: Reply with quote

demon wrote:
Grey996 wrote:
Leon1davies wrote:
Just done this and advice from OPC was the actual top mount housing very rarely needs replacing...its the bearing, rubber, metal plates and washers that that need changing.


http://www.design911.co.uk/fu/prod71137/Shock-Absorber-Mounting-Overhaul-Kit-FRONT-Porsche-996-C2/

I know its pricey but when I took my old one off I could see why they recommend replacing it all. The bearing element just fell apart in my hands...rubber didn't look too bad and nor did the washers.


Thanks, i’ll hold off on the top mounts then, hopefully they’ll be ok. That kit seems very expensive, i’ll see if I can find just the bearing some where.


Is the following what you are after?

www.design911.co.uk/fu/prod7031/Groove-Ball-Bearing-Porsche-996---9Porsche-996-Shock-Absorber-Groove-Ball-Bearing--9963435150597---986---987/

note: always worth using the part number to check price and availability with an OPC....


Perfect, thank you 😊
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upforit365
Newbie


Joined: 11 Feb 2008
Posts: 40



PostPosted: Wed Apr 18, 2018 1:23 pm    Post subject: Reply with quote

I didn’t notice any 996 part numbers on them, boxes they were in were plain too...

Fastlane wrote:
upforit365 wrote:
I used the VM top mounts sold by ECP on my turbo. No problems thus far and all the creaking noises that we’re there before are gone.


Apparently "VM" means vehicle manufacturer - I only found this out last week. Did they have a 996 part number n them?
 
  
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