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Light bore scoring found in PPI

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Old 02-08-2016, 04:21 PM
  #136  
Henrik964
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Originally Posted by Carmichael
But ... Isn't that a waste of oil?

The oil's just sitting at the bottom of the sump doing nothing.
and getting older But yes. Probably.
Old 02-08-2016, 05:41 PM
  #137  
vitman
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As an original owner of a 2006 997.1 S, who had bore scoring and ultimately purchased a new engine, I would say for you to RUN or ask for a $20K - $30K discount to cover the new engine that is in your future.
Old 04-09-2016, 09:52 PM
  #138  
Luxter
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Default Scoring Images

Here are real life images from borescoping and with head removed for your reading pleasure:






Bore #: 6 in this case. 997.1; 3.6L.

Cheers,
=L=
Old 04-09-2016, 10:00 PM
  #139  
Flat6 Innovations
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Originally Posted by Luxter
Here are real life images from borescoping and with head removed for your reading pleasure:







Bore #: 6 in this case. 997.1; 3.6L.

Cheers,
=L=
Classic mid bore scoring.. You'll find signs of more at BDC when the engine comes the rest of the way apart. This one just progressed faster than the rest.

You'll also find the piston skirt coating in the process of failure. This is the primary failure, which creates the cylinder wear, as the dos- similar wear surface being compromised leads to the bore scoring.
Old 04-10-2016, 01:50 AM
  #140  
leon yagudayev
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Originally Posted by w1234ale
Thank you all! Well I have to admit it was love at first sight with this car.

But . . . alas it was not meant to be. I will walk.

Here is a final question: what then is the car worth?

34? 24?

What if I could get the car at a deep discount. No indication that I could, but I'm curious.
Run away and get a 997.2 09 thru 12. I had a cylinder scoring on 996 well discussed here couple of months ago . It's a 20 thousand dollar mistake. Don't buy it even if it's discounted. There are plenty of 997 for sale all over.
Old 04-10-2016, 09:37 AM
  #141  
ljpviper
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Default Bore scoring

I am bothered by the people that say all cars have bore scoring and its somewhat acceptable in the 997. Well most cars are not 20k to rebuild a motor. I love the 997 platform and have had two of them, I would definately do tons of due dilegence if I buy another.
Old 04-10-2016, 11:55 AM
  #142  
leon yagudayev
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Originally Posted by ljpviper
I am bothered by the people that say all cars have bore scoring and its somewhat acceptable in the 997. Well most cars are not 20k to rebuild a motor. I love the 997 platform and have had two of them, I would definately do tons of due dilegence if I buy another.
No..not all cars are, but from personal experience I was quoted 24k for a an motor from porsche, 18 thousand to do low end rebuild by jake raby and 13 thousand to do a rebuild by another company somewhere in florida. And that's still all ridiculous price if OP buys a car for 43 large and then has to deal with it even 3 years down the road.
Old 04-10-2016, 04:01 PM
  #143  
myw
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rod, do you know the manufacture date of your car?

Originally Posted by rodH
This kind of stuff scares the crap out of me. I must admit, I didn't do a ton of research on these cars before purchasing one. I was lucky enough to find one here on the board with only 20,000 miles and a 2005c2s. I thought the extended Warranty through the end of 2019 would give me piece of mind regarding the IMS issue (then save my pennies and if nothing happens, just before the warranty runs out, spend the money to get the IMS fixed the correct way, and not worry about it again). Now I have to worry about scoring? crap!!!!! I guess it is good that the motor only has 20k mikes on it, less chance of scoring, but still scary stuff.
Old 04-10-2016, 05:08 PM
  #144  
rodH
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Originally Posted by myw
rod, do you know the manufacture date of your car?
Don't have exact date on me but Oct or Nov 2004. Just turned 23,000 miles. It's an early one

Found it. Build 10/04
Engine code: M97/0168504775
Old 04-10-2016, 07:48 PM
  #145  
SAN997
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Originally Posted by Bruce In Philly
I spoke to my Ford engineer friend. He said marks are OK, if you can feel them with your nail, that is bad. Beyond that, if it blows up, it was bad.
I'm an engineer, and I was going to say the same thing. You can visually see marks in metal that are less than a micron deep. A visual inspection is really going to tell you fairly little about how deep a scoring mark is.

I agree that if you really want to know, you would have to take the head off and feel. My guess is that almost every engine with at least 10K miles has some type of abrasion marks from normal impurities and thermal expansion.
Old 04-11-2016, 03:16 AM
  #146  
rodH
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Originally Posted by myw
rod, do you know the manufacture date of your car?
Any particular reason you asked? Referring to IMS?
Old 04-11-2016, 06:43 PM
  #147  
myw
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Originally Posted by rodH
Any particular reason you asked? Referring to IMS?
yes exactly. before end of warranty definitely get it replaced.
Old 04-11-2016, 07:21 PM
  #148  
rodH
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Originally Posted by myw
yes exactly. before end of warranty definitely get it replaced.
That's the plan. I know that they say they don't know 100% for sure if it has the replaceable IMS or not until they look at it and build date and engine number isn't enough to know for sure. It is such an early build date and engine number of not 100% for sure, maybe it's 99.99%.
Old 04-12-2016, 03:03 PM
  #149  
KNS
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Originally Posted by rodH
Don't have exact date on me but Oct or Nov 2004. Just turned 23,000 miles. It's an early one

Found it. Build 10/04
Engine code: M97/0168504775
What was that Porsche ad showing a 911 sitting in a garage...

"The days your Porsche sits - you don't get those back"
Old 04-22-2016, 09:10 PM
  #150  
w1234ale
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All,

I thought you might be interested in the conclusion of this story. I did say that I would buy the car if it was discounted by 2/3 of an engine rebuild. No go. The car was sold at auction--and get this--for 41k.

Maybe it will never amount to much, or maybe it will require a rebuild.


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