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On the .2, 4.0 engines the intake are same part, exhaust are different part. I (think) the .74 engine is the RS4 engine in the PET. .77 is 3.8. I400 option indicates rs parts.
Anybody know specifically what Porsche did different with the .93 parts? What makes them stand up to the harmonics better with respect to bolts backing out that loc tite would not do?
I have never been able to find a definitive and authoritative description of what changed between versions. Not that they haven't occurred, but I have not read/heard of failures traced to the latest versions.
Originally Posted by usctrojanGT3
Ok so can someone please clarify the part numbers that I need to buy for the intake cam actuators and the exhaust cam actuators?
My version of PET cites the 997.2 3.8L engine code as M97.77, but it ends at 2011 and does not include the RS 4.0. My guess is that the engine code M97.74 cited above is the 997.2 RS 4.0 engine code. If so, the latest version of the actuators would be:
My version of PET cites the 997.2 3.8L engine code as M97.77, but it ends at 2011 and does not include the RS 4.0. My guess is that the engine code M97.74 cited above is the 997.2 RS 4.0 engine code. If so, the latest version of the actuators would be:
Thanks RedRSA...I have an RS so do I get the same part numbers (since you have a non-RS)?
Yes, we all want the good stuff, i.e., the latest RS version.
Note - I did caveat the part numbers based on the RS 4.0 having engine code M97.74; I hope to confirm this/have someone with a 2012+ version of PET verify this. However, these are the parts used in my car.
I called Sunset Porsche today and they confirmed that the RS 4.0 engine code is M97.74. The latest variocam actuators applicable to both the 997.2 GT3 and GT3RS are as cited above (ending with .93)
I have the same variocam engine failure on my 2011 GT3RS. Porsche is not covering it due to over-revs. Has anyone gone to arbitration over this? I'm contemplating it and would like any advice.
This happened to my 997.2 RS. It was 4 months out of warranty. I had stage 1-2 over revs. Porsche covered the bill for a new engine out of "goodwill."
I sold the car soon after that.
I just had it done. Here are the parts and cost for both parts and labor. Done by my dealer includes 2 years warranty. Car has 7500 miles on it and no bolts had backed out, but decided to replace with newer rev of the actuators. This was based on discussions with multiple Porsche mechanics, including those @ Barber. All had seen the issue multiple times.
Had a 4.0 clutch, pressure plate, and throw-out bearing replaced at the same time. The shop did not charge for the labor for that since it was being done at the same time.
I just had it done. Here are the parts and cost for both parts and labor. Done by my dealer includes 2 years warranty. Car has 7500 miles on it and no bolts had backed out, but decided to replace with newer rev of the actuators. This was based on discussions with multiple Porsche mechanics, including those @ Barber. All had seen the issue multiple times.
Had a 4.0 clutch, pressure plate, and throw-out bearing replaced at the same time. The shop did not charge for the labor for that since it was being done at the same time.
Thanks for the detailed info, why does yours start with $4,158? Is that the labor for this job?
Also, should you replace the actuators if the car doesn't have RS LWFW?
Thanks for the detailed info, why does yours start with $4,158? Is that the labor for this job?
Also, should you replace the actuators if the car doesn't have RS LWFW?
Yes, $4,158 is the labor. Don't know about the flywheel. I don't think that is really a factor as the Porsche mechanics I have talked with have seen the issue with other models as well.
04-05-2015, 01:24 PM
