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Bacas
Newbie


Joined: 16 Jan 2019
Posts: 2
Location: Faro, Algarve, Portugal


PostPosted: Wed Jan 16, 2019 3:55 am    Post subject: Small chassis crack? Reply with quote

Hi guys
I am fairly new to Porsche. Less than a year ago I got this nice 993 97’ C2 coupe. Looked good. Took it to an OPC where they did the 111 point check which it passed with no problems signaled.
Just recently I was looking around in the frunk and found this crack on the chassis (photos).
Is it serious? Can it be easily repaired?
 



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FRP
Albert Park


Joined: 30 Apr 2014
Posts: 1566
Location: Middlesex


PostPosted: Wed Jan 16, 2019 5:37 am    Post subject: Reply with quote

Looks serious to me. I am no expert tho. Get it checked by a reputable Porsche Indy
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Cameltoe & Heel
Barcelona


Joined: 26 Jan 2009
Posts: 1290
Location: Preston - Lancs


PostPosted: Wed Jan 16, 2019 8:20 am    Post subject: Reply with quote

hmmmm I'll have to agree that doesn't look good, not that the damage itself is that bad but I'd have to question why that would occur, and it's certainly not through normal driving.

What would make that overlapping steel crack along those spot welds like that?, potentially enough sideways force would, but that would mean a larger force from the structure of the car, i.e an impact.

I guess it could be down to a flaw in the steel itself, but the way the crack has appeared an come apart would suggest otherwise.

Someone has tried to obscure that crack with a large washer in the past if you look closely at the marks on the paint.

I'm guessing the car (to your knowledge) has no previous accident history?,

I'd want to get this fixed pretty quickly and also understand the reasons for it.

Trev
 
  
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hopeydaze
Silverstone


Joined: 06 Jan 2012
Posts: 144
Location: Wargrave, Berkshire, UK


PostPosted: Wed Jan 16, 2019 9:15 am    Post subject: Reply with quote

Good spot on the indentation from the large washer. The nut must have been tightened up pretty hard to create that indentation.

I hope this works out OK as it is a great looking car.
 
  
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Kingb4
Spa-Francorchamps


Joined: 20 Jan 2018
Posts: 342
Location: Beds/Bucks


PostPosted: Wed Jan 16, 2019 9:21 am    Post subject: Reply with quote

Cameltoe & Heel wrote:

What would make that overlapping steel crack along those spot welds like that?, potentially enough sideways force would, but that would mean a larger force from the structure of the car, i.e an impact.

Someone has tried to obscure that crack with a large washer in the past if you look closely at the marks on the paint.

Echoing Trev's comments - there has been some significant stress to cause the that crack.
Great spot by Trev, the photo does suggest a washer was used previously to spread the load......

Looks as though the crack is spreading towards the second bolt - so would definitely want this fixed before it spreads all the way.
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jev911uk
Newbie


Joined: 06 Mar 2011
Posts: 49
Location: Berkshire


PostPosted: Wed Jan 16, 2019 9:36 am    Post subject: Reply with quote

Kingb4 wrote:

Great spot by Trev, the photo does suggest a washer was used previously to spread the load......

Looks as though the crack is spreading towards the second bolt - so would definitely want this fixed before it spreads all the way.


Or perhaps its been on a celette jig to straighten out some damage - washer marks around all the nuts.



I'd be having a good look through all the history and a good look at all the chassis parts to look for any other signs of previous damage (creases, cracks, fresh seam sealer etc). Did you HPI it?
 
  
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Cameltoe & Heel
Barcelona


Joined: 26 Jan 2009
Posts: 1290
Location: Preston - Lancs


PostPosted: Wed Jan 16, 2019 9:38 am    Post subject: Reply with quote

Kingb4 wrote:
Cameltoe & Heel wrote:

What would make that overlapping steel crack along those spot welds like that?, potentially enough sideways force would, but that would mean a larger force from the structure of the car, i.e an impact.

Someone has tried to obscure that crack with a large washer in the past if you look closely at the marks on the paint.

Echoing Trev's comments - there has been some significant stress to cause the that crack.
Great spot by Trev, the photo does suggest a washer was used previously to spread the load......

Looks as though the crack is spreading towards the second bolt - so would definitely want this fixed before it spreads all the way.


Yep although I did later consider if this may be caused by a strut brace installation as all four have the some marks

Question
 
  
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Luddite
Monza


Joined: 18 Dec 2018
Posts: 187
Location: Scotland


PostPosted: Wed Jan 16, 2019 10:41 am    Post subject: Reply with quote

Looks like there are obvious signs that something has gone on in that area using processes somewhat below the expectations of a Porsche trained professional repair process, but then that is to be expected as a possibility in any vehicle of that age.

I would think it wise to have it inspected by someone WELL AWARE of bodywork repair processes of ALL SORTS as opposed to a "mechanic."

These days I suspect even Porsche main dealers may farm out bodywork and some indy`s may do the same, so perhaps no guarantee of finding that sort of specialist knowledge in a shiny Porsche dealership.

Best have it looked into sooner than later....
 
  
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Bacas
Newbie


Joined: 16 Jan 2019
Posts: 2
Location: Faro, Algarve, Portugal


PostPosted: Wed Jan 16, 2019 1:54 pm    Post subject: Reply with quote

No accident history (that I know of). And from an untrained eye I wouldn’t say it ever suffered severe damage.
I’ve taken it to two different OPC. First they did replace some suspension parts on the back of the car - just wear issues I was told. Second time just a regular service.

I got in touch with the dealer that sold me the car and he told me he would have it welded but I’ll have it checked at my local OPC before going that route.

I don’t know what HPI means...

Thanks for all your input.
 
  
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Endoman
Barcelona


Joined: 11 Apr 2011
Posts: 1323
Location: Bolton U.K.


PostPosted: Wed Jan 16, 2019 1:57 pm    Post subject: Reply with quote

Just a thought. It may have been caused by severe overtightening of the top mount at some time. There appears to be no damage to the turret itself so a grind out and fillet weld should sort it. If the turret reinforcement was not completely flush with the turret and there was a small gap, enough to cause a fracture through the spot weld.
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Robertb
Long Beach


Joined: 01 Sep 2003
Posts: 6892
Location: South Oxfordshire

2002 Porsche 996 Carrera 4S

PostPosted: Wed Jan 16, 2019 2:45 pm    Post subject: Reply with quote

Bacas wrote:
No accident history (that I know of)....

I don’t know what HPI means...

Thanks for all your input.


HPI is a registry of insurance claims, and will show if the car has been subject to a claim, eg write off, stolen recovered etc.

https://www.hpi.co.uk/

What it won't show are events where an insurance company has not been involved, for example the owner paying for damage themselves.
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Cunno
Indianapolis


Joined: 13 Dec 2008
Posts: 2326
Location: Nottinghamshire


PostPosted: Wed Jan 16, 2019 3:48 pm    Post subject: Reply with quote

Robertb wrote:
Bacas wrote:
No accident history (that I know of)....

I don’t know what HPI means...

Thanks for all your input.


HPI is a registry of insurance claims, and will show if the car has been subject to a claim, eg write off, stolen recovered etc.

https://www.hpi.co.uk/

What it won't show are events where an insurance company has not been involved, for example the owner paying for damage themselves.


Is this correct? My understanding is that if a car has been repaired as part of a insurance claim it wouldn’t show on hpi unless it had been a total loss?
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Tobesetc
Albert Park


Joined: 02 Jun 2014
Posts: 1512
Location: West London, UK


PostPosted: Wed Jan 16, 2019 4:25 pm    Post subject: Reply with quote

It'll only show if it is a write-off or details of damage by Category (A, B, C or D) according to the website.
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MisterCorn
Long Beach


Joined: 08 Jan 2011
Posts: 6850
Location: Nottingham, England

2004 Porsche 996 Turbo

PostPosted: Wed Jan 16, 2019 4:29 pm    Post subject: Reply with quote

From looking at the shapes of where the washers were located, I don't believe washers were used to try to cover it up. It looks like the washers had been removed before the crack occurred.

MC
 
  
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GMG
Spa-Francorchamps


Joined: 07 Jan 2018
Posts: 347
Location: Devon


PostPosted: Wed Jan 16, 2019 4:35 pm    Post subject: Reply with quote

...unless it drives sideways down the road I would not worry about it...get it welded up and forget about it...
 
  
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AP90
Spa-Francorchamps


Joined: 25 Sep 2004
Posts: 356
Location: Cornwall UK


PostPosted: Wed Jan 16, 2019 4:50 pm    Post subject: Reply with quote

GMG wrote:
...unless it drives sideways down the road I would not worry about it...get it welded up and forget about it...


Second that.......
 
  
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NIBrown
Nürburgring


Joined: 10 Oct 2010
Posts: 418
Location: South Wales


PostPosted: Wed Jan 16, 2019 5:56 pm    Post subject: Re: Small chassis crack? Reply with quote

Bacas wrote:
Hi guys
I am fairly new to Porsche. Less than a year ago I got this nice 993 97’ C2 coupe. Looked good. Took it to an OPC where they did the 111 point check which it passed with no problems signaled.
Just recently I was looking around in the frunk and found this crack on the chassis (photos).
Is it serious? Can it be easily repaired?


You need to drill a hole at the very end of the crack, this will prevent it from spreading any further. Then get it welded sooner rather that later Thumb
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tyinsky
Montreal


Joined: 29 Jun 2012
Posts: 618
Location: London, UK

1997 Porsche 993 Carrera 2S

PostPosted: Wed Jan 16, 2019 6:37 pm    Post subject: Reply with quote

GMG wrote:
...unless it drives sideways down the road I would not worry about it...get it welded up and forget about it...


Also this. And get a strut brace on there. If it drives in a straight line and the geo figures are all good, tyres not wearing unevenly etc I can't see there is any need to do any shltting in pants.
 
  
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AP90
Spa-Francorchamps


Joined: 25 Sep 2004
Posts: 356
Location: Cornwall UK


PostPosted: Wed Jan 16, 2019 7:58 pm    Post subject: Reply with quote

tyinsky wrote:
GMG wrote:
...unless it drives sideways down the road I would not worry about it...get it welded up and forget about it...


Also this. And get a strut brace on there. If it drives in a straight line and the geo figures are all good, tyres not wearing unevenly etc I can't see there is any need to do any shltting in pants.


Beautifully put Smile
 
  
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Trantorman
Spa-Francorchamps


Joined: 04 Aug 2008
Posts: 350



PostPosted: Wed Jan 16, 2019 8:31 pm    Post subject: Reply with quote

GMG wrote:
...unless it drives sideways down the road I would not worry about it...get it welded up and forget about it...




At the risk of getting slammed again, surely you can and should apply the same logic to a Cat d car, which has been on the road for years with no issue...

Grin
 
  
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