09-19-2013, 05:43 AM
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#1
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Registered User
Join Date: Jul 2013
Location: Oslo, Norway
Posts: 325
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He said they change from double to single row in 99:
Mine is a 2000 (and just almost failed), it is a double row bearing.
So his logic isn't 100% correct, when he states that engines started failed right after they went from double to single bearing....
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09-19-2013, 06:09 AM
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#2
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Registered User
Join Date: May 2009
Location: Frederick, MD
Posts: 1,396
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Quote:
Originally Posted by haz
He said they change from double to single row in 99:
Mine is a 2000 (and just almost failed), it is a double row bearing.
So his logic isn't 100% correct, when he states that engines started failed right after they went from double to single bearing....
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in 2000, porsche started using the single row. not every engine had a single row until 2002 MY, so it's possible that 2 cars of the same MY (2000, 2001) have different bearings.
he also said that there were more failures from single row than double row, which i think has been shown to be true from others who have worked on this. doesn't mean the double row doesn't fail, just that the single row fails more often.
remember, statistics don't matter to the individual.
__________________
"Speed has never killed anyone, suddenly becoming stationary... that's what gets you."
Last edited by tonycarreon; 09-19-2013 at 06:11 AM.
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09-19-2013, 06:24 AM
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#3
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Registered User
Join Date: May 2012
Location: Vancouver Island, Canada
Posts: 211
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My apologies if I missed something in Pedro's video. With the DOF, the filtered oil enters the unsealed bearing through the orifice in the flange which I really like.
Where does the oil go after running through the bearing? Does any pass through into the IMS or does it simply return to the sump?
BTW I think it's awesome that folks like Pedro and Jake have given us these options that allow us to stop worrying about this IMSB nightmare.
Thanks to both of you!
__________________
'01 Boxster S (purchased new) triple black, litronics, cruise, heated seats,18's.
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09-19-2013, 08:21 AM
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#4
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Registered User
Join Date: Nov 2005
Location: Florida
Posts: 529
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Where does the oil go?...
Quote:
Originally Posted by ccjazz
My apologies if I missed something in Pedro's video. With the DOF, the filtered oil enters the unsealed bearing through the orifice in the flange which I really like.
Where does the oil go after running through the bearing? Does any pass through into the IMS or does it simply return to the sump?
BTW I think it's awesome that folks like Pedro and Jake have given us these options that allow us to stop worrying about this IMSB nightmare.
Thanks to both of you! 
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With the DOF after stream of oil is shot into the open-ended bearing, it runs down back into the oil sump to be picked up by the pump and the path starts again (sump->pump-> filter-> oil cooler-> DOF-> beraing-> sump....)
Happy Boxstering,
Pedro
__________________
Racecar spelled backwards is: Racecar!
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09-19-2013, 10:09 AM
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#5
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Registered User
Join Date: May 2012
Location: Vancouver Island, Canada
Posts: 211
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Quote:
Originally Posted by ppbon
With the DOF after stream of oil is shot into the open-ended bearing, it runs down back into the oil sump to be picked up by the pump and the path starts again (sump->pump-> filter-> oil cooler-> DOF-> beraing-> sump....)
Happy Boxstering,
Pedro
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Thanks Pedro!
__________________
'01 Boxster S (purchased new) triple black, litronics, cruise, heated seats,18's.
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09-19-2013, 08:18 AM
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#6
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Registered User
Join Date: Nov 2005
Location: Florida
Posts: 529
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Quote:
Originally Posted by haz
He said they change from double to single row in 99:
Mine is a 2000 (and just almost failed), it is a double row bearing.
So his logic isn't 100% correct, when he states that engines started failed right after they went from double to single bearing....
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Porsche started the change of the IMS bearings in the (calendar) year 1999 which is (model) year 2000. The first part of the MY2000 production run included dual row bearings, which is your particular case.
happy Boxstering,
Pedro
__________________
Racecar spelled backwards is: Racecar!
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09-19-2013, 10:33 AM
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#7
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Registered User
Join Date: Nov 2004
Location: New Jersey
Posts: 8,709
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Quote:
Originally Posted by haz
He said they change from double to single row in 99:
Mine is a 2000 (and just almost failed), it is a double row bearing.
So his logic isn't 100% correct, when he states that engines started failed right after they went from double to single bearing....
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Haz, approximately how many oil changes did your double row bearing car have up until the failure began? As you shared with us your double row bearing went nearly 2 1/2 years without an oil change. Somehow I don't think the previous owner(s) were good at critical engine maintenance. Do you have the most recent coolant cap? was the coolant tank and water pump ever replaced?
I think the logic is spot on. Typically lawyers will not chop off a whole big group of possible class action members (more $$$$$) unless the documents they reviewed show that the number of cars that Porsche had to fix as part of their engine replacement program differ greatly from the class action members with only single row bearings. The documents given to them by Porsche via subpoena must have confirmed that there was a big jump in repairs needed once single row bearings were used. If the documents showed the opposite that there were just as many, they would have expanded the pool of plaintiffs or filed a separate complaint for dual row cars.
__________________
GT3 Recaro Seats - Boxster Red
GT3 Aero / Carrera 18" 5 spoke / Potenza RE-11
Fabspeed Headers & Noise Maker
BORN: March 2000 - FINLAND
IMS#1 REPLACED: April 2010 - NEW JERSEY -- LNE DUAL ROW
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09-19-2013, 10:42 AM
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#8
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Registered User
Join Date: Jul 2013
Location: Oslo, Norway
Posts: 325
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Quote:
Originally Posted by ppbon
Porsche started the change of the IMS bearings in the (calendar) year 1999 which is (model) year 2000. The first part of the MY2000 production run included dual row bearings, which is your particular case.
happy Boxstering,
Pedro
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Hat tip to you my good sir
Quote:
Originally Posted by Perfectlap
Haz, approximately how many oil changes did your double row bearing car have up until the failure began? As you shared with us your double row bearing went nearly 2 1/2 years without an oil change. Somehow I don't think the previous owner(s) were good at critical engine maintenance. Do you have the most recent coolant cap? was the coolant tank and water pump ever replaced?
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I will not argue against you on those questions  I was merely pointing out that, from what I have hear from people and also read myself up on, the problems with the IMSB didnīt happen the second Porsche changed from single to double bearing.
Yes, most recent 04 cap. Expansion tank replaced, as well as the water pump and the AOS.
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09-19-2013, 11:57 AM
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#9
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Registered User
Join Date: Nov 2004
Location: New Jersey
Posts: 8,709
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Quote:
Originally Posted by haz
Yes, most recent 04 cap. Expansion tank replaced, as well as the water pump and the AOS.
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I'm more curious about the total number of oil changes (approximately doesn't have to be precise) that you're car had until the failure began.
__________________
GT3 Recaro Seats - Boxster Red
GT3 Aero / Carrera 18" 5 spoke / Potenza RE-11
Fabspeed Headers & Noise Maker
BORN: March 2000 - FINLAND
IMS#1 REPLACED: April 2010 - NEW JERSEY -- LNE DUAL ROW
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09-19-2013, 01:37 PM
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#10
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Registered User
Join Date: Jul 2013
Location: Oslo, Norway
Posts: 325
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Quote:
Originally Posted by Perfectlap
I'm more curious about the total number of oil changes (approximately doesn't have to be precise) that you're car had until the failure began.
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AFAIK.. and have documentet in the service manual... these are the oil changes as far back as the story books that came with the car can confirm:
Date........KM
24.07.13..158.000
16.05.11..142.688
06.05.08..118.584
16.08.06..106.280
12.10.05..97.354
11.03.03..79.477
09.07.02..54.023
23.07.01..41.700
23.10.00..23.151
Most likely there have been more oil changes than this, as the services above include more than just the oil changes.
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09-19-2013, 03:09 PM
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#11
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Registered User
Join Date: Nov 2004
Location: New Jersey
Posts: 8,709
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Quote:
Originally Posted by haz
AFAIK.. and have documentet in the service manual... these are the oil changes as far back as the story books that came with the car can confirm:
Date........KM
24.07.13..158.000 / 98K miles
16.05.11..142.688 / 88k miles
06.05.08..118.584 / 74K miles
16.08.06..106.280 / 66K miles
12.10.05..97.354 / 60K miles
11.03.03..79.477 / 49K miles
09.07.02..54.023 / 33K miles
23.07.01..41.700 / 26K miles
23.10.00..23.151 / 15K miles
Most likely there have been more oil changes than this, as the services above include more than just the oil changes.
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I had to add the intervals in miles to see it better. Were these Mobil1 oils? It looks like you're missing records for at least 8 oil changes in the first 88K miles/142KMs to get the average mileage between oil changes down to 5K miles.
__________________
GT3 Recaro Seats - Boxster Red
GT3 Aero / Carrera 18" 5 spoke / Potenza RE-11
Fabspeed Headers & Noise Maker
BORN: March 2000 - FINLAND
IMS#1 REPLACED: April 2010 - NEW JERSEY -- LNE DUAL ROW
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09-20-2013, 04:51 AM
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#12
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Registered User
Join Date: Jul 2013
Location: Oslo, Norway
Posts: 325
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Quote:
Originally Posted by Perfectlap
I had to add the intervals in miles to see it better. Were these Mobil1 oils? It looks like you're missing records for at least 8 oil changes in the first 88K miles/142KMs to get the average mileage between oil changes down to 5K miles.
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Yes Mobil1. And yes I agree. I just bought it in july so it's not much I can do about the past.
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