IMS replaced with roller bearing?

[Redboxs]

Originally Posted by KRAM36

Yes our cars have some issues, buttttt

Porsche Tops J.D. Power Initial Quality Study for Second Consecutive Year

http://www.nytimes.com/2014/06/19/automobiles/porsche-tops-jd-power-initial-quality-study-for-second-consecutive-year.html

Also Toyota had a major issue with sludge build up on their V6 engines in early 2000 models, those engines were in the Camry, Solara, Lexus ES300, Lexus RX330. How they kept it so quite I don't know.

Toyota Broadens Sludge-Repair Program | The Center for Auto Safety

Oh yeah I remember that! maybe toyota has a better PR team or media cover up team lol!

[thom4782]

Take a look at the referenced Rennlist thread

Since when does an LN bearing come with an outer seal installed?

[porsche-land]

Originally Posted by thom4782

Take a look at the referenced Rennlist thread

Since when does an LN bearing come with an outer seal installed?

It comes with outer seal, not inner seal. We have removed the rear seal to take this bearing apart.

[thom4782]

Originally Posted by porsche-land

It comes with outer seal, not inner seal. We have removed the rear seal to take this bearing apart.

An ironic answer to a rhetorical question

[Gelbster]

Jake hints that the cause of the problem may be misalignment
If so, any deep-groove ball or roller IMSB bearing would quickly fail -even a spherical bearing would fail?
Perhaps Martin's new IMSB patent addresses the misalignment issue ?
Hey Martin - here is a great opportunity to plug your new product -so "GO!"

[Perfectlap]

Originally Posted by KRAM36

Yes our cars have some issues, buttttt

Porsche Tops J.D. Power Initial Quality Study for Second Consecutive Year

http://www.nytimes.com/2014/06/19/automobiles/porsche-tops-jd-power-initial-quality-study-for-second-consecutive-year.html

Also Toyota had a major issue with sludge build up on their V6 engines in early 2000 models, those engines were in the Camry, Solara, Lexus ES300, Lexus RX330. How they kept it so quite I don't know.

Toyota Broadens Sludge-Repair Program | The Center for Auto Safety

Originally Posted by Redboxs

Oh yeah I remember that! maybe toyota has a better PR team or media cover up team lol!

I wouldn't put a whole lot of stock in those JD Power rankings if you are interested in an apples to apples comparison. For starters, Half (at least) of Porsche's fleet see little mileage as these are not daily-driven cars. Japanese cars on the other hand and others like GM/Ford are not typically low mileage garage queens. If the Porsche fleet registered mileage similar it's competitors that sell 200K cars a month instead of per year, Porsche would be nowhere near the top of those rankings. Porsches may be reliable under low mileage conditions but they certainly not engineered to be durable. If they were, everyone would have one and the prices wouldn't be falling down to basically just the value of the engine itself.

[Gelbster]

Anyway these are NEW cars ,not old clunkers like ours !
JDP does not focus/study/survey the reliability of older cars. After 5 years old ,they are forgotten.

[flaps10]

JD Powers "Initial Quality" is the first 90 days.

Get back to me in five or ten years and I'll tell you how many times this pig made me walk.

[KRAM36]

Originally Posted by Gelbster

Anyway these are NEW cars ,not old clunkers like ours !
JDP does not focus/study/survey the reliability of older cars. After 5 years old ,they are forgotten.

JDP does do used car reliability ratings. I don't have one from them on 5 year old or older. I think it's pretty much a given that a 5 year old or older car isn't going to be reliable, some exception to that yes.

JDP's 2015 used car reliability results. Porsche didn't make the cut in any category.

19 Most Dependable Cars on the Road

Highest-Ranked Nameplate — Lexus
Small Car — Scion xD
Compact Car — Toyota Corolla
Compact Premium Car — Lexus ES
Compact Sporty Car — Scion tC
Midsize Car — Chevrolet Malibu
Midsize Sporty Car – Chevrolet Camaro
Midsize Premium Car – Mercedes-Benz E-Class
Large Car — Buick LaCrosse
Small SUV — Kia Sportage
Compact SUV — GMC Terrain
Compact Premium SUV — Mercedes-Benz GLK-Class
Compact MPV — Scion xB
Midsize SUV — Nissan Murano
Midsize Premium SUV — Lexus GX
Midsize Pickup — Honda Ridgeline
Minivan — Toyota Sienna
Large SUV — GMC Yukon
Large Light-Duty Pickup — GMC Sierra 1500
Large Heavy-Duty Pickup — Chevrolet Silverado HD

Anyways my 2003 Boxster S "pig" has never made me walk with 117k miles on it now.

[clickman]

Interesting - no rebuttal from Jake or Charles...

[Giller]

Originally Posted by clickman

Interesting - no rebuttal from Jake or Charles...

I think because this topic has been absolutely beaten to death. Hey - there is a rule about cats....can we get a rule about the IMS???

[Jamesp]

Cats will only take out Timco's engine. The IMS can take out anybodys' regardless of bearing choice. That's why it's worth beating to death.

[thom4782]

Originally Posted by clickman

Interesting - no rebuttal from Jake or Charles...

Perhaps they don't need to respond.

The attacking party is wrong on at least two points which undercuts the credibility of his posts.

LNE retrofits come without outer seals (see attached photo from LNE website) and the expert claims they do.



Pictures shown in the two cited LNE failure examples show bearings with outer seals, which means they aren't LNE bearings to begin with or have been doctored

[Jamesp]

You cannot see the seal in this picture, its on the other side of the bearing. I don't think Porsche-land is lying. Any bearing can fail. The bearings shown do have the correct number of balls for the classic ceramic bearing and also have the correct number of seals which is one. What is not clear is what the operating environment of the bearing was. If there is contamination in the bearing it will fail, and as it does it generates more contamination. There is a reason the engines get screened.