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davidjf7
Imola


Joined: 21 Oct 2010
Posts: 787
Location: Hertfordshire


PostPosted: Tue Aug 30, 2011 11:09 am    Post subject: Reply with quote

decgraham wrote:
Well here is a picture of my rear end Rolling Eyes if you know what I mean, and mine has the rectangle with a number on it too.

ATB Smile


Thanks - my worry was that it may mean a replacement at some point in the car's life. Would be good to know that they were like this from the factory. My number's a four digit one that looks like it's been written on with a felt tip pen Grin
 
  
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decgraham
Barcelona


Joined: 17 Sep 2008
Posts: 1374
Location: Spain


PostPosted: Tue Aug 30, 2011 11:29 am    Post subject: Reply with quote

If memory serves me there was a post on here some time ago about these marks. Mine too is a 4 digit in felt tip pen, I think it identifies the guy who built the car. My rear end had never been off since new so they come from the factory like this.

ATB Smile
 
  
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rottenbend
Magny-Cours


Joined: 22 Aug 2010
Posts: 2589
Location: Hertfordshire

1997 Porsche 993 Carrera 2S

PostPosted: Tue Aug 30, 2011 11:35 am    Post subject: Reply with quote

davidjf7 wrote:
decgraham wrote:
Well here is a picture of my rear end Rolling Eyes if you know what I mean, and mine has the rectangle with a number on it too.

ATB Smile


Thanks - my worry was that it may mean a replacement at some point in the car's life. Would be good to know that they were like this from the factory. My number's a four digit one that looks like it's been written on with a felt tip pen Grin


Mine's a five digit number in felt tip too. I was careful not to obliterate it any further when painting that area... It's this sort of thing that a bodyshop would just spray over but to me it's a little bit of the cars originality/history. Sad Embarassed


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davidjf7
Imola


Joined: 21 Oct 2010
Posts: 787
Location: Hertfordshire


PostPosted: Tue Aug 30, 2011 12:57 pm    Post subject: Reply with quote

Thanks all, could be a new thread - 'what number is yours?'

Only thing is, you have to take the car apart to have a look Grin
 
  
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jackal2513
Shanghai


Joined: 21 Jan 2009
Posts: 4513
Location: London


PostPosted: Tue Aug 30, 2011 5:28 pm    Post subject: Reply with quote

mine has the rectangle but no number
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Doink
Spa-Francorchamps


Joined: 31 Mar 2011
Posts: 327
Location: Southern UK


PostPosted: Wed Aug 31, 2011 9:08 am    Post subject: Reply with quote

Mine has (had) the rectangle with a number but I can't remember the number.

I've sold it now nooo
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Iris Blue 993 Coupe (now sold). Previous 911s : 2.7 Targa, 3.2 Carrera, 964 C4.
 
  
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davidjf7
Imola


Joined: 21 Oct 2010
Posts: 787
Location: Hertfordshire


PostPosted: Mon Sep 05, 2011 2:36 pm    Post subject: Reply with quote

Right, sorry to drag this up again ( Grin ) but having put my new tool kit from Halfords to good use over the weekend, here's mine

Need to attack it with a wire brush now but pleased that it all seems to be surface rust. The worst seems to be where the cable for the rear lid goes through the chassis

The arch supports aren't too good so may need to replace these. Then it will be lots of treatment before putting it all back together again

Next job is to remove the cat so I can replace the cat support bracket behind it. Really not looking forward to that as the fixings are in a right state (and also from viewing Jackal's recent DIY on his)

I'm actually really enjoying this whole job and the list of things to do/replace is growing by the day Surprised
 
  
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samba-lee
Suzuka


Joined: 19 Aug 2008
Posts: 1050
Location: Manchester

1974 Lamborghini urraco

PostPosted: Mon Sep 05, 2011 4:32 pm    Post subject: Reply with quote

Ahh another one. Dealers beware we'll all want to know if this has been done Smile with pictures too

Lee
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jackal2513
Shanghai


Joined: 21 Jan 2009
Posts: 4513
Location: London


PostPosted: Mon Sep 05, 2011 7:35 pm    Post subject: Reply with quote

that doesnt look too bad david ..all the best with it
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davidjf7
Imola


Joined: 21 Oct 2010
Posts: 787
Location: Hertfordshire


PostPosted: Tue Sep 06, 2011 8:47 am    Post subject: Reply with quote

jackal2513 wrote:
that doesnt look too bad david ..all the best with it


Thanks Thumb

Watching your ongoing work with interest to see if there's anything else I fancy doing while the car's in pieces Grin

Anyone know why there's rust around the hole where the cable goes through (top pic)? Does the cable rub against the paint Question
 
  
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rottenbend
Magny-Cours


Joined: 22 Aug 2010
Posts: 2589
Location: Hertfordshire

1997 Porsche 993 Carrera 2S

PostPosted: Tue Sep 06, 2011 8:50 am    Post subject: Reply with quote

davidjf7 wrote:
Anyone know why there's rust around the hole where the cable goes through (top pic)? Does the cable rub against the paint Question


Mine had some - I think it's just another weakness that needs to be addressed.
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Doink
Spa-Francorchamps


Joined: 31 Mar 2011
Posts: 327
Location: Southern UK


PostPosted: Tue Sep 06, 2011 12:49 pm    Post subject: Reply with quote

David your rust looks similar to mine. Should clear up OK - I used a rotating wire brush on a drill - approx £5.00 in Halfords ? Saves a lot of elbow grease !

The cat bolts may need to be cut off - better buy yourself a 240v dremel and some eye protection ...

It is quite fun when you get in there - Enjoy Thumb

D.
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davidjf7
Imola


Joined: 21 Oct 2010
Posts: 787
Location: Hertfordshire


PostPosted: Tue Sep 06, 2011 2:29 pm    Post subject: Reply with quote

Doink wrote:
David your rust looks similar to mine. Should clear up OK - I used a rotating wire brush on a drill - approx £5.00 in Halfords ? Saves a lot of elbow grease !

The cat bolts may need to be cut off - better buy yourself a 240v dremel and some eye protection ...

It is quite fun when you get in there - Enjoy Thumb

D.


Thanks Doink Thumb

Definitely looks like cutting will be required for the cat

Since I got my car I've very quickly amassed a lot of new tools and polishing kit Grin
 
  
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dommorton
Zolder


Joined: 16 Mar 2008
Posts: 5062


1998 Porsche 993 Carrera 4S

PostPosted: Tue Sep 06, 2011 5:23 pm    Post subject: Reply with quote

rottenbend wrote:
davidjf7 wrote:
Anyone know why there's rust around the hole where the cable goes through (top pic)? Does the cable rub against the paint Question


Mine had some - I think it's just another weakness that needs to be addressed.


The cable is inside that tube so nothing to do with rubbing.

The paint just doesn't seem to have stuck well to the original weld there so it bubbles up and rusts.

I made it all shiny and new again with a stone tool in my Dremel. Then I gave it a dose of POR-15.
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samba-lee
Suzuka


Joined: 19 Aug 2008
Posts: 1050
Location: Manchester

1974 Lamborghini urraco

PostPosted: Tue Sep 06, 2011 8:07 pm    Post subject: Reply with quote

Hi guys,

You should really use the wire brush tools that bolt on to an angle grinder. It's like 1000 times more powerful than the wire brush on a drill method and does the job in seconds.

There's also 3M Strip'n'Clean which is a carborundum impregnated brushy sort of thing design to strip paint and rust quickly/

Lee
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rottenbend
Magny-Cours


Joined: 22 Aug 2010
Posts: 2589
Location: Hertfordshire

1997 Porsche 993 Carrera 2S

PostPosted: Tue Sep 06, 2011 8:13 pm    Post subject: Reply with quote

samba-lee wrote:
You should really use the wire brush tools that bolt on to an angle grinder. It's like 1000 times more powerful than the wire brush on a drill method and does the job in seconds.


+1. An angle grinder is your friend and afterwards you can cut those nasty exhaust bolts off in a jiffy Thumb
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dommorton
Zolder


Joined: 16 Mar 2008
Posts: 5062


1998 Porsche 993 Carrera 4S

PostPosted: Tue Sep 06, 2011 8:26 pm    Post subject: Reply with quote

rottenbend wrote:
samba-lee wrote:
You should really use the wire brush tools that bolt on to an angle grinder. It's like 1000 times more powerful than the wire brush on a drill method and does the job in seconds.


+1. An angle grinder is your friend and afterwards you can cut those nasty exhaust bolts off in a jiffy Thumb


+ another 1

A must have power tool Thumb
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davidjf7
Imola


Joined: 21 Oct 2010
Posts: 787
Location: Hertfordshire


PostPosted: Wed Sep 07, 2011 11:45 am    Post subject: Reply with quote

Thanks all, will invest in some new kit Thumb
 
  
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davidjf7
Imola


Joined: 21 Oct 2010
Posts: 787
Location: Hertfordshire


PostPosted: Sun Sep 11, 2011 6:56 pm    Post subject: Reply with quote

Wasn't as lucky as I first thought. When I started to wire brush the rust a small hole appeared Sad

Do you think it needs cutting out and welding?
 
  
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samba-lee
Suzuka


Joined: 19 Aug 2008
Posts: 1050
Location: Manchester

1974 Lamborghini urraco

PostPosted: Sun Sep 11, 2011 7:01 pm    Post subject: Reply with quote

"Do you think it needs cutting out and welding?"

Yes.

I would cut out all the rust to the rear of the leg about 3" square. Remember it's only rusted from the outside, so once it's removed and a piece welded in it will be sorted - of course you need to protect the inside of the chassis leg after the work is done.

Looks like you have the right environment for the job - I take it you don't have a welder ? a mobile guy will have this done in less than an hour.

Lee
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