30 captured repliesPartial discussion capture · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCH254 over-revs range 5 27500 range 1
Reported or suspected cause
weak rod bolts in the
Reported cause
No successful repair reported for this finding.
1
Identified cause
0
Suspected cause
0
Reported fixes
Read evidence and context
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1
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Leading evidence: 'weak rod bolts in the' (1 discussions report identifying this cause; no attributable repair resolution). Across 1 matching discussions, the most frequently mentioned possible cause is 'weak rod bolts in the' (1 discussions; 1 report identifying it and 0 suggest it). The most frequently discussed action is 'Run away' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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Suspected cause
Also, with that many over-rev's it's likely the car was tracked hard.
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Suggestion
Unless you did a separate legally binding contract that said any over revs could not be used against you to deny coverage that is EXACTLY the first thing that Porsche will do to you, CPO or not.
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30 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
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should i be concerned that this car has been dogged out? Its priced well and it passed PPI with flying colors but that seems real scary to me. The mechanic says its probably just a miss shift. But 27500 range 1 seems like the car has been driven hard. Any thoughts on this would be appreciated
I'm no expert, but I just bought an 08 CS with 34k miles, and it had 1925 in range 1 and 78 in range 2.
So yeah, your numbers scare the piss out of me.
The
DME
report should include the last time each rev range had hits and the total engine time. Compare those before making a decision as to whether it is relevant.
The large # of range 1 would not be an issue for me. It mostly indicate spirited driving with shifting at red-line. I agree that the range 5 is a missed downshift. I would not buy unless it was very clear why it was still a good buy (great price, long history since missed-shift, great condition, etc).
If you post up the range list that is provided from the
DME
readout i.e. 1-6, number of ignitions and hours of last instance it would help.
The range 1's are not an issue as this is a normal range as a reference mine has 65k of them
Anything in 1-3 is normal, however 4-6 is not and even with my missed shifts I have only 366 in Range 4, so the Range 5 number is a bit of a concern.
Don't buy that car. There is a very good chance that rod bolts have been weakened and the engine will blow at some point. Also, with that many over-rev's it's likely the car was tracked hard. Here's what my over-rev's looked like just before my engine below last month:
Number of ignitions range 1 (7300 - 7500rpms) 39874 / 612h
Number of ignitions range 2 (- 7700) 4201 / 611h
Number of ignitions range 3 (- 7900) 779 / 610h
Number of ignitions range 4 (- 8400) 240 / 610h
Number of ignitions range 5 (- 9500) 33 / 337h
Number of ignitions range 6 (- 11000) 0 / 0h
Operating hours counter 612
Even with a CPO warranty Porsche will DENY WARRANTY COVERAGE with those range 5 over revs. The CPO warranty isn't worth the paper it is written on if you have those kind of over-revs. Unless you did a separate legally binding contract that said any over revs could not be used against you to deny coverage that is EXACTLY the first thing that Porsche will do to you, CPO or not.
RUN, RUN AWAY FAST - DO NOT BUY THIS CAR!
* - one exception you could buy it and wipe its over rev memory but if the dealer already has a record of it then Porsche already has a record and you are screwed either way.
Another 'run away' vote here. With over revs in that range, even a year from now if that motor goes you are in for a fight with Porsche to get anything covered. They will sell you one without mentioning this (or giving you a copy of the rev report) but will hold it agains you when it goes. The dealer here said it matters in relation to the time it was done vs engine problems, but I have seen people here get hung out to dry on over revs many hours in the past when the engine acted up.
There are other
Caymans
, be patient and keep looking
I love how when you own a Porsche everyone tells you to track it! But when you go to buy a used Porsche everyone says, make sure you don't buy a car that's been tracked hard.
:hilarious:
Thanks for all the feedback everyone. I decided to walk away from this one. Ive been looking for that perfect car for so long im getting impatient. it seems to me that 08s that are lightly optioned are still going for quite a premimum at least as far as the dealerships go. There are just not a lot of gen 2s out there and they are about 10 g more than an 08.
I know the feeling well. Why are you looking at '08s versus '07s or '06s? The differences are very minor but the price premium is about $4K per year per my research.
The engine is a new design, among other things. This is just my opinion but if I were looking for a Cayman I'd go for an '09+ DFI, especially if you want to track it. If you don't want to track it then consider a Gen 1.
The "254" number is tiny - this means it spent a very small fraction of a second there (254
spark plug
ignitions happen in a flash at high revs). The number that is scary is "5". Range 5 overrev should be avoided - just look elsewhere for another car...
It's been 10 years. The poster has likely come to his conclusion by now.
But we'll never know because he hasn't posted in the last decade either
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History does repeat itself, so these old posts are quite useful, even though you will not get a reply from the maker, he is long gone. The issue is the weak rod bolts in the
M97 engine
. This is a known fact. So the limit is 7000, do not exceed it or you maybe facing a $15,000 rebuild or replacement junk yard motor. If you bought this car and drove it like at 8/10 max, and less most often, then you may prevent an engine explosion. Down the road, it may only take one more episode of range 3 or more to have this happen. Best to walk away and find your dream with a little less sensitive
DME
RPM report.
Everyone seems a bit hypersensitive to these overrev issues on Porsches. 254 ignitions takes less than half a second at that high of an engine speed, the engine is probably fine.
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