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How many 15-16 gt3's have engine replaced?

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Old 07-25-2016, 06:58 PM
  #916  
robmypro
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Originally Posted by Macca
Bruce. It would be great if you can let us know the summery findings of the oil analysis here. I doubt at 700 miles there will be much to tell...
There is a thread that includes oil analysis from Blackstone. Maybe we could consolidate our reports there?

https://rennlist.com/forums/991-gt3-...-analysis.html
Old 07-25-2016, 09:16 PM
  #917  
cdturne
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Originally Posted by bruce987
Too reset the oil indicator, the mechanic turned off the motor, raised the back lid and close it... that's how you force an oil reset - makes the oil level recalculate. Now it reads two bars below high.
So if the oil level won't give a reading, you do this procedure then restart the engine, do you get an immediate reading?
Old 07-25-2016, 09:48 PM
  #918  
R.Deacon
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Originally Posted by Chris3963
Mine is an "F" series engine. It's 2015 car with a late 2014 build.
Our builds may well be close ,mine late Oct./14 , care to share track miles and total
Miles ?
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Old 07-25-2016, 09:56 PM
  #919  
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Originally Posted by fbirch
Jamie - Thanks for taking the initiative on this. It will be very interesting to follow the info you post re your own car.

BTW - I agree with you 100% on changing heads (vs the entire engine) after major metallic abrasion. The pics posted in another thread of a severely worn finger were pretty alarming. I wouldn't be comfortable with that amount of particulate being pumped through the engine. Do you believe the oil filter will be effective in catching most/all of the particulates? Or is this a case of secondary damage being done before the particulate makes it to the filter in the first place?
Filters are only effective at certain sizes and only a percentage at that size. There will be damage with the circulating particulate and on it's way to the filter... So both ways.

Oil analysis is a great way to stay educated and more important is more frequent oil changes to make sure there isn't any build up in the engine...

Originally Posted by bruce987
Another good reason to have an oil analysis done. I just sent in an analysis to Blackstone on the new "G" motor just put in... it now has ~700 miles on it.
Good Call!

We'd want to see oil analysis on vehicles that are "fixed" to make sure there isn't a second time bomb in there waiting to happen from debris that has been circulating eating bearing surfaces, rings, cylinders etc...
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Old 07-26-2016, 03:04 AM
  #920  
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Originally Posted by R.Deacon
Our builds may well be close ,mine late Oct./14 , care to share track miles and total
Miles ?
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Around 10,000 miles with approx 1,500 miles on track. My garage has done two other F series replacements this year. Both had similar mileage.
Old 07-26-2016, 04:47 AM
  #921  
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I'm pretty sure there are AT LEAST 3 times more rebuilds and replacements that people who only count "reported by rennlisters" think.

Those who still keep repeating mantra "It's a great reliable car, engine faults are just unlicky conicidents and there are only 17 reported" are blindfolded.
Old 07-26-2016, 05:41 AM
  #922  
Macca
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Originally Posted by levd
I'm pretty sure there are AT LEAST 3 times more rebuilds and replacements that people who only count "reported by rennlisters" think. Those who still keep repeating mantra "It's a great reliable car, engine faults are just unlicky conicidents and there are only 17 reported" are blindfolded.
I agree entirely. It's clear now F engines aren't immune either. If what Dunson Motorsports believe is the potential cause then none of the 991.1 GT3/RS engines are without the possibility of having similar issues. A black mark for Porsche IMO.
Old 07-26-2016, 06:58 AM
  #923  
Chris3963
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Originally Posted by Macca
I agree entirely. It's clear now F engines aren't immune either. If what Dunson Motorsports believe is the potential cause then none of the 991.1 GT3/RS engines are without the possibility of having similar issues. A black mark for Porsche IMO.
I concur. While my garage has done 3 engine replacements this year....it has actually done 6 in total. This may be a statistical anomaly, but if this is representative of the number of replacements per garage, its a much, much bigger number.
Old 07-26-2016, 08:07 AM
  #924  
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Chris3963
Thanks my car coming up on 15k miles and many more track miles .
Will plan an oil analysis/change soon
Ug, sure hope P will stand tall behind there
Error on this build if truly the case.
Old 07-26-2016, 11:44 AM
  #925  
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Originally Posted by Macca
I agree entirely. It's clear now F engines aren't immune either. If what Dunson Motorsports believe is the potential cause then none of the 991.1 GT3/RS engines are without the possibility of having similar issues. A black mark for Porsche IMO.
To think that people are (supposedly) paying $1m+ for 911R's with this engine in them. Then again, they won't be actually driven so will probably be OK.
Old 07-26-2016, 12:27 PM
  #926  
bronson7
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Curious what update PAG will do with the .2 engine regardless whether they use the 3.8 or 4.0. They certainly will be working on a fix you would think, so I'm wondering what they will do to all 3.8's and 4.0's out there?
Old 07-26-2016, 01:06 PM
  #927  
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As I reported here a few weeks ago, a new GT3RS on loan from Porsche Australia blew an engine whilst being reviewed by Wheels Magazine in Australia. To quote: '...and while Butler is at the wheel, the GT3RS suddenly goes bang. Butler notices unfortunate noises, warning lights and then thick white smoke from behind him. ' I've seen enough F1 races to know what it looks like when an engine lunches itself, he later reports dolefully.''
Old 07-26-2016, 01:08 PM
  #928  
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There will be more. It's essentially the same engine as infamous 3.8.
Old 07-26-2016, 06:18 PM
  #929  
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PAG better get to the bottom of this.
Old 07-26-2016, 06:28 PM
  #930  
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Originally Posted by 90944
As I reported here a few weeks ago, a new GT3RS on loan from Porsche Australia blew an engine whilst being reviewed by Wheels Magazine in Australia. To quote: '...and while Butler is at the wheel, the GT3RS suddenly goes bang. Butler notices unfortunate noises, warning lights and then thick white smoke from behind him. ' I've seen enough F1 races to know what it looks like when an engine lunches itself, he later reports dolefully.''
In that article, they report Porsche found an issue with the "valve keeper failed" This is the first I have heard of the "valve keeper" as a problem.


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