Last Call: Add your name to the 991 GT3 Concerned Owners Group List
06-15-2017 | 04:47 PM
#32
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Race Director
Joined: Jun 2015
Posts: 10,235
Likes: 1,785
From: Colorado
06-15-2017 | 09:54 PM
#36
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Joined: Oct 2015
Posts: 83
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As reference, here is a letter I sent to Porsche AG Korea office in April 2016. I requested a g engine, but engine was rebuilt.
------
April 4, 2016
Porsche AG
401, Yeongdong-daero, Gangnam-gu, Seoul, 135-847
Rep. of KOREA
To Whom It May Concern:
I am a loyal and avid Porsche fan. I have owned a 997 C4S, 997 GTS and currently am the proud owner (first/only) of a 2014 991 GT3.
My 2014 GT3 came with the replacement E engine. I have c.20,000 km. On March 12, 2016, I the engine light came on that read “reduced engine performance, possible to drive on.” Based on readings from Porsche dealer technicians, the fault code indicated that cylinder 3 misfired at approximately 7,300 rpm. This was repeated three times before the decision was made to transfer the car by truck carrier to the dealer center.
There has been a lot of talk and documented engine replacements, in particular with the E engine. Please refer to the thread below:
https://rennlist.com/forums/991-gt3-...-repalced.html
The issues I presume is better understood by you/team than me, but my understanding is that it is an oil lubrication / design issue with the E engine that causes excessive scoring on the rocker arms and camshaft. The subsequent G engine was tweaked to address this issue to my understanding.
I received a call from my dealer center (Bundang, Korea +8231-729-0912) and the decision by PAG Germany is to rebuild my engine. Based on my observations below, I am very surprised about this outcome. The wear on the rocker arms and the camshaft is severe (see pictures below). My worry is that a rebuild of the engine will see a similar fate in the near future, unless you/team can explain otherwise.
I would like to request further diagnostics with a PAG field representative and reconsideration of your/team outcome as I believe that a G engine replacement is warranted. As you would imagine, I am quite concerned, but hopeful that Porsche AG will do the right thing by me and other customers. The 991 GT3 is an incredible car and a dream car for me.
Sincerely,
Heartbreaking picture to see the 991 GT3 A1 flat six under such circumstances!
Rocker arms for cylinders 1, 2 and 3. Severe scoring on all rockers, especially for rockers for cylinder 3 (far right).
Another shot of rocker arms for cylinders 1,2 and 3. In the light, you can see the wear and tear on the rocker arms.
Here is a close up of the rocker arm (furthest right).
And here is a lateral view of the rocker arm (above). You can see that the wear has “flattened” the rocker arm, evidence of metal to metal wear.
Camshaft lobe is quite scored.
------
April 4, 2016
Porsche AG
401, Yeongdong-daero, Gangnam-gu, Seoul, 135-847
Rep. of KOREA
To Whom It May Concern:
I am a loyal and avid Porsche fan. I have owned a 997 C4S, 997 GTS and currently am the proud owner (first/only) of a 2014 991 GT3.
My 2014 GT3 came with the replacement E engine. I have c.20,000 km. On March 12, 2016, I the engine light came on that read “reduced engine performance, possible to drive on.” Based on readings from Porsche dealer technicians, the fault code indicated that cylinder 3 misfired at approximately 7,300 rpm. This was repeated three times before the decision was made to transfer the car by truck carrier to the dealer center.
There has been a lot of talk and documented engine replacements, in particular with the E engine. Please refer to the thread below:
https://rennlist.com/forums/991-gt3-...-repalced.html
The issues I presume is better understood by you/team than me, but my understanding is that it is an oil lubrication / design issue with the E engine that causes excessive scoring on the rocker arms and camshaft. The subsequent G engine was tweaked to address this issue to my understanding.
I received a call from my dealer center (Bundang, Korea +8231-729-0912) and the decision by PAG Germany is to rebuild my engine. Based on my observations below, I am very surprised about this outcome. The wear on the rocker arms and the camshaft is severe (see pictures below). My worry is that a rebuild of the engine will see a similar fate in the near future, unless you/team can explain otherwise.
I would like to request further diagnostics with a PAG field representative and reconsideration of your/team outcome as I believe that a G engine replacement is warranted. As you would imagine, I am quite concerned, but hopeful that Porsche AG will do the right thing by me and other customers. The 991 GT3 is an incredible car and a dream car for me.
Sincerely,
Heartbreaking picture to see the 991 GT3 A1 flat six under such circumstances!
Rocker arms for cylinders 1, 2 and 3. Severe scoring on all rockers, especially for rockers for cylinder 3 (far right).
Another shot of rocker arms for cylinders 1,2 and 3. In the light, you can see the wear and tear on the rocker arms.
Here is a close up of the rocker arm (furthest right).
And here is a lateral view of the rocker arm (above). You can see that the wear has “flattened” the rocker arm, evidence of metal to metal wear.
Camshaft lobe is quite scored.
Last edited by ablee2323; 06-16-2017 at 08:12 AM. Reason: Deleting private info
06-16-2017 | 10:53 AM
#40
Thread Starter
Race Director
Joined: Jun 2015
Posts: 10,235
Likes: 1,785
From: Colorado
As reference, here is a letter I sent to Porsche AG Korea office in April 2016. I requested a g engine, but engine was rebuilt.
------
April 4, 2016
Porsche AG
401, Yeongdong-daero, Gangnam-gu, Seoul, 135-847
Rep. of KOREA
To Whom It May Concern:
I am a loyal and avid Porsche fan. I have owned a 997 C4S, 997 GTS and currently am the proud owner (first/only) of a 2014 991 GT3.
My 2014 GT3 came with the replacement E engine. I have c.20,000 km. On March 12, 2016, I the engine light came on that read “reduced engine performance, possible to drive on.” Based on readings from Porsche dealer technicians, the fault code indicated that cylinder 3 misfired at approximately 7,300 rpm. This was repeated three times before the decision was made to transfer the car by truck carrier to the dealer center.
There has been a lot of talk and documented engine replacements, in particular with the E engine. Please refer to the thread below:
https://rennlist.com/forums/991-gt3-...-repalced.html
The issues I presume is better understood by you/team than me, but my understanding is that it is an oil lubrication / design issue with the E engine that causes excessive scoring on the rocker arms and camshaft. The subsequent G engine was tweaked to address this issue to my understanding.
I received a call from my dealer center (Bundang, Korea +8231-729-0912) and the decision by PAG Germany is to rebuild my engine. Based on my observations below, I am very surprised about this outcome. The wear on the rocker arms and the camshaft is severe (see pictures below). My worry is that a rebuild of the engine will see a similar fate in the near future, unless you/team can explain otherwise.
I would like to request further diagnostics with a PAG field representative and reconsideration of your/team outcome as I believe that a G engine replacement is warranted. As you would imagine, I am quite concerned, but hopeful that Porsche AG will do the right thing by me and other customers. The 991 GT3 is an incredible car and a dream car for me.
Sincerely,
Heartbreaking picture to see the 991 GT3 A1 flat six under such circumstances!
Rocker arms for cylinders 1, 2 and 3. Severe scoring on all rockers, especially for rockers for cylinder 3 (far right).
Another shot of rocker arms for cylinders 1,2 and 3. In the light, you can see the wear and tear on the rocker arms.
Here is a close up of the rocker arm (furthest right).
And here is a lateral view of the rocker arm (above). You can see that the wear has “flattened” the rocker arm, evidence of metal to metal wear.
Camshaft lobe is quite scored.
------
April 4, 2016
Porsche AG
401, Yeongdong-daero, Gangnam-gu, Seoul, 135-847
Rep. of KOREA
To Whom It May Concern:
I am a loyal and avid Porsche fan. I have owned a 997 C4S, 997 GTS and currently am the proud owner (first/only) of a 2014 991 GT3.
My 2014 GT3 came with the replacement E engine. I have c.20,000 km. On March 12, 2016, I the engine light came on that read “reduced engine performance, possible to drive on.” Based on readings from Porsche dealer technicians, the fault code indicated that cylinder 3 misfired at approximately 7,300 rpm. This was repeated three times before the decision was made to transfer the car by truck carrier to the dealer center.
There has been a lot of talk and documented engine replacements, in particular with the E engine. Please refer to the thread below:
https://rennlist.com/forums/991-gt3-...-repalced.html
The issues I presume is better understood by you/team than me, but my understanding is that it is an oil lubrication / design issue with the E engine that causes excessive scoring on the rocker arms and camshaft. The subsequent G engine was tweaked to address this issue to my understanding.
I received a call from my dealer center (Bundang, Korea +8231-729-0912) and the decision by PAG Germany is to rebuild my engine. Based on my observations below, I am very surprised about this outcome. The wear on the rocker arms and the camshaft is severe (see pictures below). My worry is that a rebuild of the engine will see a similar fate in the near future, unless you/team can explain otherwise.
I would like to request further diagnostics with a PAG field representative and reconsideration of your/team outcome as I believe that a G engine replacement is warranted. As you would imagine, I am quite concerned, but hopeful that Porsche AG will do the right thing by me and other customers. The 991 GT3 is an incredible car and a dream car for me.
Sincerely,
Heartbreaking picture to see the 991 GT3 A1 flat six under such circumstances!
Rocker arms for cylinders 1, 2 and 3. Severe scoring on all rockers, especially for rockers for cylinder 3 (far right).
Another shot of rocker arms for cylinders 1,2 and 3. In the light, you can see the wear and tear on the rocker arms.
Here is a close up of the rocker arm (furthest right).
And here is a lateral view of the rocker arm (above). You can see that the wear has “flattened” the rocker arm, evidence of metal to metal wear.
Camshaft lobe is quite scored.
Thanks guys!
