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CarreraMonkey
Kyalami


Joined: 02 Sep 2013
Posts: 1764
Location: Silverstone (ish)

2007 Porsche 997 Carrera 4S

PostPosted: Mon May 15, 2017 9:53 pm    Post subject: I wasn't expecting that! Reply with quote

Driving back from the train station tonight when my exhaust became very loud.

Oil temp and pressure was ok, so pulled over and could hear that it was something to do with the offside silencer.

I limped home and took a closer look, to discover this:



One of the original o2 sensors that we had managed to re-use when I fitted the 200 cell cats had let go. The thread on them was a bit thin when removed.

Lesson learnt.. let's hope that it hasn't stripped the the thread in the cat.
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Frenchmeister
Suzuka


Joined: 24 Feb 2014
Posts: 1010
Location: Beautiful Cumbria.

2004 Porsche 997 Carrera 2S

PostPosted: Mon May 15, 2017 9:56 pm    Post subject: Reply with quote

If it has a helicoil insert in the cat should sort it, bib it sound fruity thumbsup
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997 Carrera 2S 54 Arctic Silver
944 Turbo S 88 Solid Black
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CarreraMonkey
Kyalami


Joined: 02 Sep 2013
Posts: 1764
Location: Silverstone (ish)

2007 Porsche 997 Carrera 4S

PostPosted: Mon May 15, 2017 10:00 pm    Post subject: Reply with quote

Frenchmeister wrote:
If it has a helicoil insert in the cat should sort it, bib it sound fruity thumbsup


It sounded like a tractor. Awful, rather than just loud. Laughing
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Frenchmeister
Suzuka


Joined: 24 Feb 2014
Posts: 1010
Location: Beautiful Cumbria.

2004 Porsche 997 Carrera 2S

PostPosted: Mon May 15, 2017 10:04 pm    Post subject: Reply with quote

Okay fella, helicoil is the way to go if a run down with a tap on the cat and a new sensor does not sort it.
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997 Carrera 2S 54 Arctic Silver
944 Turbo S 88 Solid Black
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CarreraMonkey
Kyalami


Joined: 02 Sep 2013
Posts: 1764
Location: Silverstone (ish)

2007 Porsche 997 Carrera 4S

PostPosted: Mon May 15, 2017 10:16 pm    Post subject: Reply with quote

Frenchmeister wrote:
Okay fella, helicoil is the way to go if a run down with a tap on the cat and a new sensor does not sort it.


Cool. Will bell my Indy tomorrow and get it booked in.

Thx
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kurlykris
Albert Park


Joined: 30 Jun 2014
Posts: 1731
Location: Warwickshire


PostPosted: Mon May 15, 2017 10:20 pm    Post subject: Reply with quote

I would imagine the Lambdas are made out of what we call in the trade " monkey metal " ( or even brass and then plated ), the cheapest grade that they can get away with and usually soft as the proverbial, so hopefully the threads in your cats will have been a much tougher grade of Stainless and so survived Thumb
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Phil 997
Yas Marina


Joined: 05 Dec 2015
Posts: 8274
Location: Bournemouth,Dorset

2009 Porsche 997 Carrera 4S

PostPosted: Mon May 15, 2017 10:31 pm    Post subject: Reply with quote

Lucky you were close to home Matt Thumb
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Frenchmeister
Suzuka


Joined: 24 Feb 2014
Posts: 1010
Location: Beautiful Cumbria.

2004 Porsche 997 Carrera 2S

PostPosted: Mon May 15, 2017 10:32 pm    Post subject: Reply with quote

What Kurly said, just noticed my post count was 997
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Think I may need to waffle on here to get 1000 tonight.
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944 Turbo S 88 Solid Black
BMW X3 2.0D M Sport 06 Silver Grey
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Zingari
Shanghai
Shanghai


Joined: 25 Oct 2009
Posts: 11191
Location: Cheshire

1993 Porsche 964 Anniversary

PostPosted: Mon May 15, 2017 10:42 pm    Post subject: Reply with quote

I've never managed to get an O2 sensor out without damaging it as they seem to 'weld' themselves in with the heat. I just end up buying a new one Rolling Eyes
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CarreraMonkey
Kyalami


Joined: 02 Sep 2013
Posts: 1764
Location: Silverstone (ish)

2007 Porsche 997 Carrera 4S

PostPosted: Mon May 15, 2017 10:55 pm    Post subject: Reply with quote

Phil 997 wrote:
Lucky you were close to home Matt Thumb


I did have a moment of 'oh feck!' Before I took stock and checked the oil gauges.
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CarreraMonkey
Kyalami


Joined: 02 Sep 2013
Posts: 1764
Location: Silverstone (ish)

2007 Porsche 997 Carrera 4S

PostPosted: Mon May 15, 2017 10:57 pm    Post subject: Reply with quote

Zingari wrote:
I've never managed to get an O2 sensor out without damaging it as they seem to 'weld' themselves in with the heat. I just end up buying a new one Rolling Eyes


To be fair, the Indy saved 2 out of the 4, but did say that they were sketchy. They do tend to come out with little if any thread generally..
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