LN bearing failure

[Pdwight]

Or should I say on the heels of your statement "Has this data been collected?"

What is the failure rate of the different IMS replacement bearings after they are put into service ??

[thom4782]

Originally Posted by Pdwight

Or should I say on the heels of your statement "Has this data been collected?"

What is the failure rate of the different IMS replacement bearings after they are put into service ??

If your referring to my back of the envelop calculation, no the data hasn't been collected by an independent, unbiased party. At best, one can guess at the numbers.

After watching the forum for years, my sense is that there are between 5,000 and 10,000 LN bearings in service. If I'm conservative, then I'll work with 5,000. My sense also is that the number of failures is between 0 and 5. Again, if I'm conservative, I'll work with 5. Then the math becomes 5 failures out of 5,000 units. This implies a failure rate of 2 hundredths of a percent. I'll still take those odds any day.

To be fair, now that I reread Jake's post, I probably misinterpreted it when he mentioned 25,000. My bad if I did.

Bottom line...read as much as your can. View all of it skeptically. Then do your own calculus on which IMB fix is best for you trading off your perception of longevity of the product and cost of the product. Then place your bet by picking a product. That's what I did and only time will tell if I placed the right bet.

[KRAM36]

I use the Porsche Crest and the word Porsche for my desktop background. Do I have to stop using it?

[Timco]

Originally Posted by KRAM36

I use the Porsche Crest and the word Porsche for my desktop background. Do I have to stop using it?

Are you using that logo to give the appearance of being Porsche Affiliated? Like you work for them? So their name draws calls for you?

Because I sell Weil-McLain boilers, should I call myself "Weil-McLain Land" even if they sent me a cease & desist order to stop illegally using their name? How about "Triangle-Tube Land" or "Peerless Land"..... Maybe "Home-Depot Land" since I use their products.

Please don't tell me you guys can't see the difference between personal & (somewhat) professional use?? A hack is a hack, down to the last bolt, bearing, and typically their name, as in this case.

[KRAM36]

Originally Posted by Timco

Are you using that logo to give the appearance of being Porsche Affiliated? Like you work for them? So their name draws calls for you?

Because I sell Weil-McLain boilers, should I call myself "Weil-McLain Land" even if they sent me a cease & desist order to stop illegally using their name? How about "Triangle-Tube Land" or "Peerless Land"..... Maybe "Home-Depot Land" since I use their products.

Please don't tell me you guys can't see the difference between personal & (somewhat) professional use?? A hack is a hack, down to the last bolt, bearing, and typically their name, as in this case.

That would be a no in my case. I used it because it's cool looking and I made it myself.

How do you know that porsche land is a hack?

[Giller]

Originally Posted by KRAM36

That would be a no in my case. I used it because it's cool looking and I made it myself.

How do you know that porsche land is a hack?

Not sure hack is the right word.....but unprofessional does come to mind. He comes on here only to advertise and take shots at Jake.
He does not contribute anything productive to the forums or offer anyone any help or advice.
The whole point of this forum, or so I thought, was to share ideas and thoughts and engage in some fun banter, as well as help each other out with technical help.
Oh, and make fun of each other from time to time.
And no cats!

[KRAM36]

Originally Posted by Giller

Not sure hack is the right word.....but unprofessional does come to mind. He comes on here only to advertise and take shots at Jake.
He does not contribute anything productive to the forums or offer anyone any help or advice.
The whole point of this forum, or so I thought, was to share ideas and thoughts and engage in some fun banter, as well as help each other out with technical help.
Oh, and make fun of each other from time to time.
And no cats!

I do agree with you on that. Did Hell freeze over?

[Timco]

Originally Posted by Giller

Not sure hack is the right word.....but unprofessional does come to mind. He comes on here only to advertise and take shots at Jake.
He does not contribute anything productive to the forums or offer anyone any help or advice.
The whole point of this forum, or so I thought, was to share ideas and thoughts and engage in some fun banter, as well as help each other out with technical help.
Oh, and make fun of each other from time to time.
And no cats!

I say hack from a business owner's perspective. Uses another major company's name for free exposure (against their wishes), posts solely to promote his business and bash Jake, has an obvious troll buddy, offers no help as Jake does, and did the OP really move you to consider this guy as an indy option? What engine or customer or job is he talking to or about??

He is the type that nails signs to light poles. Free advertising. Rennlist didn't allow it, neither should Mark.

I have no *official* opinion on the statement regarding that small animal who's name shall not be mentioned as per my sealed, out of court settlement with Mark & Pelican....

[Perfectlap]

Originally Posted by Giller

Not sure hack is the right word.....but unprofessional does come to mind. He comes on here only to advertise and take shots at Jake.
He does not contribute anything productive to the forums or offer anyone any help or advice.
The whole point of this forum, or so I thought, was to share ideas and thoughts and engage in some fun banter, as well as help each other out with technical help.
Oh, and make fun of each other from time to time.
And no cats!

I'm not so sure that telling us of an LN bearing failure (or early stages) is having the intended effect. From where I stand it seems to underline the fact that we so rarely have forum members report an issue, even despite the fact that third parties of varying degrees of competence are doing nearly all of the installations. Think of all the ways that someone can screw that up... yet I don't think I could count on the fingers of one hand all of the people who have come on to this and other Porsche forums railing about a LN failure.
Granted, the forum represent only a sliver of sliver of total 986/996 drivers but I mean I can't think of a single person who has come on here to say the LN bearing was installed and the engine still grenades. Now compare that to the number of factory bearings that went kaput and the owners came on to ask what to do with their roller.
The fact that people with single row bearings even postpone the swap in the face of such an absence of complaints post-swap really baffles me.

[JFP in PA]

People, you can take the mickey out of it all you want, but Porsche has a history of shutting down websites and even businesses for using their copyrighted materials without their expressed permission. The point is, they have the right to do so if they are so inclined, just like any other copyright holder.

[jdiba]

Haven't been on the site in almost a year. Sad to see this same bashing going on against Jake. All I know is I bought the product close to 4 years ago. Had it installed by an authorized professional, and haven't had an issue.

[peter_bigblock]

I can tell you this much: Jake built me an M96 for my Boxster (well, rebuilt) that unfortunately suffered a 10,000-rpm mechanical over-rev. Yes, I missed a shift -- the money shift. The motor held together, however. No thrown or bent rods (billet rods, ARP fasteners) no cracked pistons (JE) or wrist pin failures. The crank (stock) was twisted and bent. The valves were goners. The timing chains (stock) were stretched. But the block and heads were good.

So I sent the motor back to Jake for another rebuild (that's the "money" part of money shift) with a billet crank, bored and stroked, full dyno tune, etc. Pulls hard, runs like a champ, do the maintenance and use the oil Jake tells you to. So what's my point? My point is build a motor that holds together at 10,000 rpm and then tell me you're the man and Jake is full of ********************.

I've been wrenching cars for 40 years, I can tell who to trust and who's all talk. Do as you please, it's your motor.

[Giller]