Metal in filter
06-05-2013, 06:58 PM
#46
Racer
06-05-2013, 10:29 PM
#47
Rennlist Member
06-05-2013, 10:59 PM
#48
Pro
Thread Starter
06-06-2013, 05:10 AM
#49
Race Director
Wait, one bearing photo is the evidence required to indict all dual-row bearings? Dude, you just never quit. Well, I suppose I admire your tenacity.
HOWEVER...
I saw metallic flakes similar to OP's when I did my first oil change on my first M96 (in my Boxster) and proceeded to see them sometimes, sometimes not, over the next 50,000 miles. Thus, I disagree that the presence of said flakes increases your IMSB disaster odds from 5% to 95%.
HOWEVER...
I saw metallic flakes similar to OP's when I did my first oil change on my first M96 (in my Boxster) and proceeded to see them sometimes, sometimes not, over the next 50,000 miles. Thus, I disagree that the presence of said flakes increases your IMSB disaster odds from 5% to 95%.
06-06-2013, 05:13 AM
#50
Race Director
As I recall from reading the settlement docs, the dual-row failure rate was alleged by Porsche to be less than one percent.
I am quoting my memory, so this "statistic" is no more reliable than any of the others getting tossed out here...
I am quoting my memory, so this "statistic" is no more reliable than any of the others getting tossed out here...
06-06-2013, 11:40 AM
#51
Racer
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The 996 is in my mind, the deal of the century, IMS or no IMS problem. For $25K+ (I wish I had waited to pay this little), this is a lot of car for those that like to drive hard, which usually means taking it to the track. So one needs to be vigilant. The IMS is not palpable like a wheel bearing. And the failure window is relatively small. I posted pics to illustrate the level of failure vs. not feeling a problem w/ the car in any way, on the street or the track. The only reason I caught it is I put in the little extra effort to change frequently and look for issues each time. I agree w/ Schnell of people getting the wrong idea, metal does not equal IMS. But it should raise the defcon level temporarily. The OP had a leaky IMS seal and the bearing is probably just fine (minor point: hard to tell if a bearing if fine by looking at the outside and spinning it), and this is borne out by the statistics. Something bad is going to break sometime on all cars. And my car is no exception. After 35,000 track miles of living between 4500 and 7000 RPM, 1 type 2 overrev, hundreds of type 1, I know it is inevitable. But I hope the irony is not lost. Apologize for sounding so preachy. But I am defensive about these cars I guess.
06-06-2013, 12:02 PM
#52
To the OP, glad you got it fixed and your right. Should be good for a long time. You can now ENJOY the car without the worry of the bearing issue.
Congrats on making a well informed decision!
Congrats on making a well informed decision!
06-08-2013, 09:51 AM
#54
Race Director
The 996 is in my mind, the deal of the century, IMS or no IMS problem. For $25K+ (I wish I had waited to pay this little), this is a lot of car for those that like to drive hard, which usually means taking it to the track. So one needs to be vigilant. The IMS is not palpable like a wheel bearing. And the failure window is relatively small. I posted pics to illustrate the level of failure vs. not feeling a problem w/ the car in any way, on the street or the track. The only reason I caught it is I put in the little extra effort to change frequently and look for issues each time. I agree w/ Schnell of people getting the wrong idea, metal does not equal IMS. But it should raise the defcon level temporarily. The OP had a leaky IMS seal and the bearing is probably just fine (minor point: hard to tell if a bearing if fine by looking at the outside and spinning it), and this is borne out by the statistics. Something bad is going to break sometime on all cars. And my car is no exception. After 35,000 track miles of living between 4500 and 7000 RPM, 1 type 2 overrev, hundreds of type 1, I know it is inevitable. But I hope the irony is not lost. Apologize for sounding so preachy. But I am defensive about these cars I guess.
06-09-2013, 11:42 PM
#55
Pro
Thread Starter
[QUOTE][Slopeslider, What did the pulled IMSB look and feel like? Single or dual row?QUOTE]
It was a single row. The seal was failing and leaking. Took it to the track this weekend and ran flawlessly.
It was a single row. The seal was failing and leaking. Took it to the track this weekend and ran flawlessly.
