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My 991.1 GT3 RS have less that 5,000 milles, I'm the original owner and the car has been in the repair shop at least 9 times ( more that 100 days in total ), never been in a track.
My 991.1 GT3 RS have less that 5,000 milles, I'm the original owner and the car has been in the repair shop at least 9 times ( more that 100 days in total ), never been in a track.
thats the problem. our 991.1 RS, tracked, 30.000 KM no issues.
My 991.1 GT3 RS have less that 5,000 milles, I'm the original owner and the car has been in the repair shop at least 9 times ( more that 100 days in total ), never been in a track.
Wow! That's very problematic! What kind of problems do you have in your RS?
I ran into an issue last week with my .1 GT3-RS. I was driving my car and it went into "limp mode" and the engine light came on. I took my car down to my shop and they tried replacing the ignition coil to see if that would solve the problem. Nothing happened. Still threw the code. Then they tried replacing the spark plug. After that, they went out to test and see if the car would throw the '4th cylinder misfire code" sure enough they came back and it threw the code. They ended telling me that I needed to take it to my dealer because it was a warranty issue. I now have it at the dealer and I was told that the car needs a "new engine". They said that they noticed some damage to the camshaft but reinsured me the car will be getting a new engine. Fast forward 3 days later. I got a call from the dealer saying that Porsche is taking longer than usual to get back regarding the issue. I was then told that they weren't 100% sure what Porsche was going to do. Try and rebuild the camshaft??? I was wondering if anyone could shed some light on this issue. I understand 991.1 GT3's had engine problems and that the customers got new engines along with 10yr/120K miles warranty. Appreciate the help!
Thanks
Just had the same issue happen to my RS with 5500 miles, Currently getting a replacement engine.
Looks like there have been At least 5-10 Of these failures. Has anyone heard of Porsche doing anything for warranty extension or potentially Diminished value?
Just had the same issue happen to my RS with 5500 miles, Currently getting a replacement engine.
Looks like there have been At least 5-10 Of these failures. Has anyone heard of Porsche doing anything for warranty extension or potentially Diminished value?
I would strongly recommend that you let your dealer know you are well aware of the issues associated with the 991.1 GT series engines and you expect as a minimum an equivalent warranty to that offered to 991.1 GT3 owners.
I would strongly recommend that you let your dealer know you are well aware of the issues associated with the 991.1 GT series engines and you expect as a minimum an equivalent warranty to that offered to 991.1 GT3 owners.
Just got word today that a friends 991.2 GT3RS engine failed today. Just over 500 miles the oil light came on during a simple freeway commute to work. Within seconds engine rattle. Hope to hear from the dealer tomorrow. Stay tuned
The engine has indeed failed, having spun one or more bearings at 576 miles. Copper particles detected in the oil. I am told the dealer and Porsche folks are shocked this happened. Now waiting to see what PAG will do about it. I suspect new, non-number matching engine rather replace the whole car? Not sure that I would be content with a non-matching numbers on a car like this.
I am happy to report that at 570 miles, my engine has used very little oil (if any), and my trip to and from Paso Robles produced 19.6 MPG with an average speed 67 MPH.
I can tell you which bearing too, probably. We are asked to "hot rod" these engines and in doing so, become aware of their mechanical issues. I always seem to be the bearer of the bad news.
We found this out early on with the 991.1 engine. We saw the finger follower issue. We solved that issue by modifying the hydraulic finger actuation to solid. Porsche coated the fingers and the cam lobes, just hoping the coating will outlast the warranty. The issue remains, the finger followers do not get oil to remove the heat generated by the sliding action of the fingers across the cam lobes. The fingers are pushed by hydraulic pressure hard into the cam lobes not allowing any oil film to be present. We know the problem still exists and the solution is completed and available when required.
Then the 991.2 engine came. This appears to be is a more dramatic failure. Two engines failed in the exact same way. Loosing main bearings. the same main bearings. Our evaluation shows a serious issue with the engine block stiffness. This is an ongoing project and hopefully before we can build these engines we will come up with a solution. How and why it happens is clear, but why some engines do not fail is still a mystery. Thankfully these engines are still under their warranty so when they do fail, a new engine is replaced. But like the 991.1 engine these warranties will expire and the issue will become the owners problem. We will have a solution for this problem as well, hopefully.
nh
Last edited by Neil Harvey; 12-01-2020 at 01:06 PM.
I can tell you which bearing too, probably. We are asked to "hot rod" these engines and in doing so, become aware of their mechanical issues. I always seem to be the bearer of the bad news.
We found this out early on with the 991.1 engine. We saw the finger follower issue. We solved that issue by modifying the hydraulic finger actuation to solid. Porsche coated the fingers and the cam lobes, just hoping the coating will outlast the warranty. The issue remains, the finger followers do not get oil to remove the heat generated by the sliding action of the fingers across the cam lobes. The fingers are pushed by hydraulic pressure hard into the cam lobes not allowing any oil film to be present. We know the problem still exists and the solution is completed and available when required.
Then the 991.2 engine came. This appears to be is a more dramatic failure. Two engines failed in the exact same way. Loosing main bearings. the same main bearings. Our evaluation shows a serious issue with the engine block stiffness. This is an ongoing project and hopefully before we can build these engines we will come up with a solution. How and why it happens is clear, but why some engines do not fail is still a mystery. Thankfully these engines are still under their warranty so when they do fail, a new engine is replaced. But like the 991.1 engine these warranties will expire and the issue will become the owners problem. We will have a solution for this problem as well, hopefully.
nh
Unreal. Well hopefully for the .2 owners that it isn't as widespread or as easy to produce as the .1 issue.
First I’ve heard of a .2 RS fail ......will be interesting to see how this pans out?
I've heard of ZERO issues on the 991.2 from speaking to multiple owners and at least 4 dealers I trust across the US. There hasn't been any significant issues reported anywhere on failures engine wise either. I know of many with over 15k miles with heavy track use on 991.2 GT3's in my area that have been running strong.
We are often "un" privileged to see things we never want to see. We saw this back a few years when asked us to build a 991.1 hot rod. Opening the engine we saw the finger follower issue. Immediately the build was stopped as we had to solve this issue first. The solid conversion was completed and soon after Porsche kind of admitted to the failure by offering the extended warranty.
Then came the 991.2 engine projects. In the middle of the production of new parts we became aware of two engine failures, exactly the same failure, in the exact same position in the engine, which again has stalled the builds of the two 991.2 engines. We have now another serious issue to understand and fix before we continue.
New 991.2 blocks are very expensive and unavailable unless you have a ticket written up by a Porsche agency tech for an engine failure. They are not available through the Porsche parts system to "outsiders" like me. I wonder why this is??
So we have to do our own repair. Oversize bearing shells are not available either, so we found some that will work by narrowing the shell length and line boring the block. To say this issue is not serious, baffles me. We saw the same thing with the .1 engine issue. I think human nature plays games with us when confronted with things we don't want to believe. Why, because it may cost us a lot of money. We would rather believe it doesn't exist , so then hopefully it won't happen to me. Unfortunately, this is not the world I live in with respect to broken engines. I cannot disregard an issue and say, well its a 1 time thing so lets keep building hot rods.
The same customer who thinks its not serious and "I have never heard of any issues" would jump all over my *** if I built him or her an engine and the failure was to happen. I can hear them now, you should have done something if you knew.
"O" the world of an engine builder. My favorite saying is, "nothing will humble a man more than an engine or an angry wife". And so we continue to try to understand the failure, the cause and create a fix.
I managed to get some time to post some photos of the bearing failures and the repair in progress. We had already line bored the rear 2 main housings and after the removal of all of the trash and cutting the new housing found the crack. The failures are limited to the two rear bearings and the block cracked down to the breather hole.
It is my current thought that the block is flexing enough to crack the rear housing and loose the clearance on the back to bearings. I do not believe this is an oiling issue as he other bearings are perfect and show no signs of starvation.
10-10-2019, 05:49 PM
. our 991.1 RS, tracked, 30.000 KM no issues.
Engine failure
new engines along with 10yr/120K miles warranty. Appreciate the help!
