07 997S - 54k. I average 1k miles per month, but not dd.

 

I too am surprised there aren't more 100,000+ cars. There's a 996 TT out there with 300,000! I don't think I'll ever approach that considering I live on an island that's 45 miles wide.

 

Sorry I lied...I haven't quite hit 109K yet. Maybe tomorrow. Only issues has been clutch slave cylinder. Otherwise perfect.

 

Crazynesssss

 

06 C2s - 42k. Engine replaced under cpo warranty about 500 miles ago.

 

^ What happened in your case? IMS failure?

 

I agree, I'd love to know more about what was behind the motor replacement, especially since I have an 06 C2S too! (with 33k on odometer).

 

Nice to see these cars being driven

 

2007 C2S, 54k and getting better with every mile (wish I could say the same for my body)!

 

2005 C2S, not my daily driver, 34500 miles. Love this car!

 

'07 C2 80K+ and loving it

 

I new inquiring minds would want to know lol. Definately not IMS failure. When the failed engine was removed, the IMS was intact and no oil seepage.

I do track my car occasionally and the engine did fail on the track. When it blew, there was no warning. The engine was running fine. All of a sudden there was a muffled boom and an unbelievable amount of white smoke billowing out both tailpipes. Engine stopped immediately. I had just changed the oil a couple of days before. Nothing unusual looking in the oil.

Had it flatbeded to Hennessy Porsche in Roswell Ga. Completely covered under my cpo warranty. The service people there are great. From the time of diagnoses to replacing the engine was 8 business days. Took it in on a Monday and got it back the next week on Thursday.

Now the diagnoses. The spark plugs where removed and there was oil and water in five cylinders. There was oil coming out of the right exhaust header. The number one cylinder had a busted piston. The shop forman showed me the busted piston with a bore scope. There was not any external damage to the engine block. He felt sure the cylinder liner in the number one cylinder had failed. How he describe it to me is the liner slid down. As the piston comes up, the top piston ring expands over the top edge of the liner and grabs the liner and all hell breaks loose. He did tell me a cylinder liner failure int 997s is very rare.

Porsche authorized a replacement engine with out any further tear down. I really wanted the head pulled on the number one cylinder side to see what happened for sure. The shop foreman said once Porsche authorized the replacement, they had to send it back like it was. I offered to pay to take a look and was told they couldn't do it.

I was thinking maybe a failed Air Oil Seperator at high rpm causing hydro lock causing a massive failure but, the shop foreman didn't think so. At that point the dealership and technician wanted to get it fixed and out the door and move on which I don't blame them. Get on to the next job.

Here is a pic of the oil and water running out of the cylinders on the left bank when they removed the spark plugs.



Here is a pic of oil coming out of the right cylinder bank header.


Picture of replacement engine.



To tell everyone the truth, I'm glad I do track my car some. My suspicion is there was a defect regardless. The track time may have exposed it way sooner. Maybe it might have never failed. I don't know. But I do know this. My cpo expires this coming June. Thank goodness it failed now while still under warranty .

Cheers,

Nick

 

Thanks for the comprehensive answer. Glad it turned out so well for you too.

 

"slipped sleeve" is one of the standard failure modes of the M96/M97

We haven't heard about too many in the M97, but they were well known on the M96.

 

Thanks!

I was told by the shop forman that it is very rare in the M97 and the problem was solved. It was really quite a problem with older model Boxters.