Welcome to 911UK
The only place for Porsche, 911uk is the definitive enthusiast and resource site for the Porsche 911.
Registration is fast, simple and absolutely free, so join up today for full access to the site and benefit from latest member offers.

Porsche Classifieds
Porsche Buyers Guides
Sell Your Porsche on 911uk
Create a Free Classified Advert
Search Ads
Classified Adverts FAQ
Trade Classified Information
Buyer & Seller Fraud Protection
Pre Purchase Inspection (PPI)
Porsche Car Sourcing
Porsche Cars Wanted
Model
Stock
Porsche 911
991 : 2011- 7
997 : 2004- 65
996 : 1997-2005 36
993 : 1993-1998 7
964 : 1989-1993 0
Carrera 3.2 : 1983-1989 0
Carrera SC : 1977-1983 0
930 Turbo : 1975-1989 1
Early 911 : 1964-1977 0
Porsche Other Models
Classic : 1950-1965 0
Boxster : 1997- 11
Cayman : 2005- 19
Cayenne : 2003- 10
Macan : 2014- 1
Panamera : 2009- 1
912-914-924-928-944-968 5
959 - CarreraGT - RaceCar 0
Car Parts For Sale & Wanted
Other Items For Sale & Wanted
Wheels Tyres For Sale & Wanted
Number Plates For Sale Wanted

Porsche Services
Porsche Body Shop Repair
Paint Protection & Body Wrapping
Porsche Classic Insurance
Porsche Classic Parts
Porsche Classic Restoration
Porsche Design Collection
Porsche Engine Gearbox Rebuild
Porsche Heritage & History
Porsche News
Porsche Picture Gallery
Win a New Porsche 911

Porsche Parts
Body Parts, Body Styling
Brakes, Clearance
Electrical, Exhausts
Engine Cooling, Engine Electrical
Engine Rebuild, Heating Cooling
Interior Incar, Lighting
Rubber Seals, Service Parts
Steering, Suspension
Transmission, Workshop Tools
Early 911, 911 - 930, 928 - 968
964 - 993, 996 - 997, Boxster
Cayman, Cayenne, Panamera

Porsche Model Range
911 [991] 2011-Current
Porsche 911 [991]
911 [997] 2004-Current
Porsche 911 [997]
911 [GT] GT1-GT2-GT3
Porsche 911 [GT]
911 [996] 1997-2005
Porsche 911 [996]
911 [993] 1993-1998
Porsche 911 [993]
911 [RS] RS-RSR
Porsche 911 [RS]
911 [964] 1989-1993
Porsche 911 [964]
911 3.2 1983-1989
Porsche 911 3.2 Carrera
911 SC 1977-1983
Porsche 911 SC
911 [Early] 1964-1977
Porsche 911 [Early]
Boxster & Cayman
Porsche Boxster & Cayman
Cayenne & Panamera
Porsche Cayenne & Panamera

911uk Site Partners

Post new topic   Reply to topic
Author Message
ELA
Suzuka


Joined: 30 Aug 2011
Posts: 1043
Location: Nurburgring Doorstep


PostPosted: Mon Mar 13, 2017 4:37 pm    Post subject: 996 / 997 owners beware Reply with quote

My car is a very clean 80 odd thousand mile early 996. The 996 and 997 have a reputation of being very resistant to rust with no known issues, or at least that was my opinion. Well today I removed the rear arch forward and lower plastic arch liners and was very happy to have removed 760gr of mud/stones in the process. However in the lower forward corner I found some rust and it appears I have got there just in time. Now my car is never really driven in anything but perfect weather; well at least for the 6 years I've owned it. So this is just a warning and request to please go out and remove these liners and check for rust/bubbling under the seam weld, this could just save you a small fortune in the near future in welding in new sills...
Should only take you about 2-3hours per side to remove, clean, rust treat (I use Fertan) then repaint and seal. I just thought I'd give you guys a heads up whilst I'm half way through rectifying mine.
Pics below
Remove these:



Here is my LH arch:


And RH side:

_________________
1275kg 997GT3RS with:
Kessels 458bhp 3.8l & vgs-MS ECU
Akrapovic titanium exhaust
Cup 9:35 diff, Airbox, PAS, front lip
BBS 19's
H&R Suspension
Carbon wings/doors/bonnet/door cards
 
  
View user's profile Send private message Visit poster's website
   
Harv
Österreich


Joined: 18 Sep 2014
Posts: 979



PostPosted: Mon Mar 13, 2017 5:15 pm    Post subject: Reply with quote

Top work and good to get these potentially expensive issues out there. Prevention is much better than a cure

I need to remove my liners to address some cracked sill covers so will take the opportunity to have a clean and wax up

Thumb
 
  
View user's profile Send private message
   
Y2K
Monza


Joined: 08 Mar 2016
Posts: 175
Location: Hampshire


PostPosted: Mon Mar 13, 2017 5:57 pm    Post subject: Reply with quote

Good stuff! Will add this to my bi-annual task list. Cheers!
_________________
2001 996 Carrera 2 3.4
1999 Integra DC2
 
  
View user's profile Send private message
   
Robertb
Long Beach


Joined: 01 Sep 2003
Posts: 6001
Location: South Oxfordshire

2002 Porsche 996 Carrera 4S

PostPosted: Mon Mar 13, 2017 6:00 pm    Post subject: Reply with quote

Good plan... I know mine is going just a bit where stones have chipped the front wheel arch edge, didn't think to check the back.

At 109k miles I probably don't want to as that boat has likely already sailed! Sad
_________________
"911- the guilt-free supercar"

Current: 2003 C4S Coupe, seal/black

Ex: '02 C4S Coupe, '96 993 Targa, '88 Carrera Sport Coupe
 
  
View user's profile Send private message Send e-mail
   
infrasilver
Fast & Furious
Fast & Furious


Joined: 04 Oct 2010
Posts: 6852
Location: East Midlands

2001 Porsche 996 Targa

PostPosted: Mon Mar 13, 2017 6:15 pm    Post subject: Reply with quote

At the age they are now this is the main place I have seen any rust building, around the rear arches. I have treated and repainted my N/S rear arch lip and we are lucky that it's an easy to access place and not particularly hidden once checked.
It's good to be aware for the future as it's easier to nip it in the bud now than have to start cutting and welding in a few years.
_________________
http://euroroadtripper.blogspot.co.uk/

 
  
View user's profile Send private message Visit poster's website
   
Robertb
Long Beach


Joined: 01 Sep 2003
Posts: 6001
Location: South Oxfordshire

2002 Porsche 996 Carrera 4S

PostPosted: Mon Mar 13, 2017 6:20 pm    Post subject: Reply with quote

Of the 2 hrs, how long is spent disassembling/reassembling?
_________________
"911- the guilt-free supercar"

Current: 2003 C4S Coupe, seal/black

Ex: '02 C4S Coupe, '96 993 Targa, '88 Carrera Sport Coupe
 
  
View user's profile Send private message Send e-mail
   
steve r
Trainee


Joined: 26 Sep 2011
Posts: 99



PostPosted: Wed Mar 15, 2017 12:08 pm    Post subject: Reply with quote

I removed a similar amount from mine & my friends 2003 cars while changing the suspension. Both cars have the aero kit skirts which held the dirt in. I used an airline to blast all of the dirt out. A lot of dirt collects behind the plastic arch liners, these were all cleaned too.





_________________
40th Anniversary
 
  
View user's profile Send private message
   
steve1
Spa-Francorchamps


Joined: 08 Feb 2009
Posts: 278


2002 Porsche 996 Carrera 2

PostPosted: Fri Mar 17, 2017 10:24 am    Post subject: Reply with quote

Did you have any issues with the fixing screws on removal, and what type screw heads are they
_________________
2002 996 C2 cab red
 
  
View user's profile Send private message
   
Captain Lockheed
Nürburgring


Joined: 19 Dec 2014
Posts: 401
Location: Bristol


PostPosted: Fri Mar 17, 2017 10:42 am    Post subject: Reply with quote

Great stuff.
_________________
997.1 C2S Tip 2005
Saving for a 993.
 
  
View user's profile Send private message
   
FRZ 911
Montreal


Joined: 19 Jun 2015
Posts: 614
Location: East Africa/Northern Ireland

2007 Porsche 997 Carrera 4S

PostPosted: Fri Mar 17, 2017 10:58 am    Post subject: Reply with quote

Captain Lockheed wrote:
Great stuff.


Agree and I'll be taking a look myself. Thumb
_________________
997.1 C4S Meteor Grey Manual (Porsche Engine)
 
  
View user's profile Send private message
   
Porschekit
Nürburgring


Joined: 12 Aug 2014
Posts: 390
Location: North East UK


PostPosted: Fri Mar 17, 2017 4:30 pm    Post subject: Reply with quote

FRZ......my car is the same as your except it's an 09 plate......let me know what muck you find in your 997.1 and it will determine if I do the same this summer...thanks. Thumb
 
  
View user's profile Send private message
   
Alam
Spa-Francorchamps


Joined: 12 Jan 2013
Posts: 269
Location: Buckinghamshire


PostPosted: Fri Mar 17, 2017 4:36 pm    Post subject: Reply with quote

This is also true of most of the aircooled cars, arch liners seemed to be an after thought for the earlier cars. As a result lots of muck and debris build up leading to rust.

I am surprised thought for a 997 to still have similar problems... Oh well.

Dont know
_________________
K

90 Porsche 964 RS Rep (In Build)
95 Porsche 993 C4s
96 Porsche 993 C2s
02 VW Golf GTI Anniversary
04 BMW E46 M3
17 Mercedes C220 Estate
 
  
View user's profile Send private message
   
Marky911
Hockenheim


Joined: 04 Jun 2009
Posts: 743



PostPosted: Fri Mar 17, 2017 4:50 pm    Post subject: Reply with quote

Good thread Rich!

Will have a good poke about under mine once the weather gets a bit warmer.

I'm going to contact these guys next year when I get onto the cosmetics.

http://www.cumbriacarstorage.co.uk/corrosion_protection.html
 
  
View user's profile Send private message
   
steve r
Trainee


Joined: 26 Sep 2011
Posts: 99



PostPosted: Fri Mar 17, 2017 5:51 pm    Post subject: Reply with quote

steve1 wrote:
Did you have any issues with the fixing screws on removal, and what type screw heads are they


They are a mix of Torx screws (T25 & T27 i think) and plastic nuts that hold the liners on. You might need to replace a few of the plastic nuts.
_________________
40th Anniversary

Last edited by steve r on Sat Mar 18, 2017 2:00 pm; edited 1 time in total
 
  
View user's profile Send private message
   
chriscoates81
Österreich


Joined: 17 May 2013
Posts: 917



PostPosted: Sat Mar 18, 2017 8:21 am    Post subject: Reply with quote

I'm guessing the crap only builds up along the rear of the arches. I'm surprised that much has got on.
_________________
Old:1999 Carrera 2 3.4 in ocean blue with a savanna interior.
New:2002 Turbo in silver with black interior - the smile machine
 
  
View user's profile Send private message
   
Griffter
Trainee


Joined: 22 May 2016
Posts: 97



PostPosted: Sat Mar 18, 2017 10:11 am    Post subject: Reply with quote

chriscoates81 wrote:
I'm guessing the crap only builds up along the rear of the arches. I'm surprised that much has got on.


When I cleaned out behind the liners on my 996.1 last year, the most muck was behind the small liner section at the lower, outer forward section of the rear arches - first pic above.
 
  
View user's profile Send private message
   
ELA
Suzuka


Joined: 30 Aug 2011
Posts: 1043
Location: Nurburgring Doorstep


PostPosted: Sat Mar 18, 2017 10:35 am    Post subject: Reply with quote

Exactly Griffter, have now finished mine so there'll be no further issues here Wink



_________________
1275kg 997GT3RS with:
Kessels 458bhp 3.8l & vgs-MS ECU
Akrapovic titanium exhaust
Cup 9:35 diff, Airbox, PAS, front lip
BBS 19's
H&R Suspension
Carbon wings/doors/bonnet/door cards
 
  
View user's profile Send private message Visit poster's website
   
Harv
Österreich


Joined: 18 Sep 2014
Posts: 979



PostPosted: Sun Mar 19, 2017 9:40 pm    Post subject: Reply with quote

Tackled my liners and sills today (C4S) and can say this is most definitely a worthwhile task.

The C4S/Turbo uses a different sill due to the wide body config which features plastic sill extensions that run the length of the body along the side. These where removed and I found practically nothing in those seams (they are very narrow) but at the sill ends where there are return lips it was the same story as ELA.

On my car there's also quite a bit of debris buildup behind the wheel arch liners on the wheel well walls.

I did find a small patch of rust drivers side, 12 o'clock on the double skin section where the outer rear wing and inner wheel arch meet and are spot welded together so this will get special attention, anti rust, seam sealer before clear waxoyl.

Thumb
 
  
View user's profile Send private message
   
chriscoates81
Österreich


Joined: 17 May 2013
Posts: 917



PostPosted: Mon Mar 20, 2017 7:18 am    Post subject: Reply with quote

Is it worth drilling a small hole in the bottom of the liner for any moisture to drain out? Also I had the task of swapping from winters to summers this weekend, and I just can see how anything can get behind the wheel arch liners, all the joints I could see were overlapping and tight against each other.
_________________
Old:1999 Carrera 2 3.4 in ocean blue with a savanna interior.
New:2002 Turbo in silver with black interior - the smile machine
 
  
View user's profile Send private message
   
Avon
Trainee


Joined: 12 Mar 2016
Posts: 71



PostPosted: Sat Mar 25, 2017 12:04 pm    Post subject: Reply with quote

Thanks for this tip, i just cleared a truly sobering amount of crud out of these areas. The drivers side was much worse than the LHS. Fortunately no rust, maybe the dark blue colour helps it keep dry by getting warmer than white / silver...
 
  
View user's profile Send private message
   
Display posts from previous:   
Post new topic   Reply to topic   All times are GMT - 11 Hours
Goto page 1, 2  Next
Page 1 of 2

 
Jump to:  

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You can attach files in this forum
You can download files in this forum
You cannot post calendar events in this forum