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Discussion summary
YOUR RESEARCHsingle row bearing confused
Reported or suspected cause
idler roller bearing
Reported cause
No successful repair reported for this finding.
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Reported cause
The owner was kind enough to lift my Turbo and inspect the car when it developed a noise that proved to be a bad idler roller bearing.
Leading evidence: 'idler roller bearing' (1 discussions report identifying this cause; no attributable repair resolution). Across 1 matching discussions, the most frequently mentioned possible cause is 'idler roller bearing' (1 discussions; 1 report identifying it and 0 suggest it). The most frequently discussed action is 'Check guard transmission's web site' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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Reported cause · Original poster
"The problem is with the Single Row Bearing" in 2001 and later cars.
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Oh, I checked the Guard Transmission's web site for shops it recognizes for installing its parts and there are these:
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Suggestion
The owner was kind enough to lift my Turbo and inspect the car when it developed a noise that proved to be a bad idler roller bearing.
Repair shop, i am in the central valley california
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Suggestion
and any recommendations for a repair shop, I am in the central valley California
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I have a 2000 996.
I emailed Flat 6 Innovations today to ask them when i could get the IMS SOLUTION installed.
1) I received a response 1 hour later saying it is not necessary on the 996 year 2000 because these were the double row bearing. "The problem is with the Single Row Bearing" in 2001 and later cars.
then
2) I get another email 1 hour later from someone else saying that they have spots available in June and it will be $3500 for IMS, clutch, and rms. Seems like a fair price.
but my question is do i or don't i need the IMS Solution for a 2000 996?? One email says no and the other says to ship 2 their shop in June ??
3) Is it only the later Single Row bearing design that has problems and not the 1999-2000 model double bearings??
thanks for allevating my confusion
Has any one had Transmission issues "noise" that could be from the Shaft bearing? and any recommendations for a repair shop, I am in the central valley California
The failure rate for the single row bearings has apparently been much higher than for the double row bearings. At this time LNE/Flat 6 are only offering the IMS solution for engines with the single row bearings, although I read that they have developed parts for the double row bearing but are not releasing/producing them at this time.
Most 2000 cars have the dual row bearing, although they say you can only be sure by looking at the IMS cover. I know my 2000, which was produced in late '99 has the dual row bearing.
Quote:
Are you sure the noise is from the transmission input shaft and its bearings?
The AWD models can develop a problem with the cardan shaft and its bearings. They can also develop a problem with the front diff.
Then of course there is always the rear diff and the tranny and of course the tranny has the input shaft.
Might mention too that for every input shaft that fails a larger number of water pumps, idler roller bearings, and other things fail that can have one suspecting the transmission when of course the problem lies elsewhere.
Central valley, huh? All I'm familiar with is the Fresno Porsche dealer and the one up in Sacramento (or in a town on the outskirts of Sacramento). I have no Porsche indy recommendations to make.
(Well, not the central valley that's for sure, but there was (and probably still is but I haven't been through there for a few years now) a shop in Tehachapi that did some Porsche work. The owner was kind enough to lift my Turbo and inspect the car when it developed a noise that proved to be a bad idler roller bearing. Sorry, but I can't recall the name of the shop.)
If the diagnosis proves to be with the tranny you might ask around at the various BMW and M-B dealers in your area where they send manual transmissions for rebuilds and get a recommendation.
Oh, I checked the Guard Transmission's web site for shops it recognizes for installing its parts and there are these:
IPB Autosport
Ron Kain
1206 C Street
Sacramento,CA 95814
[phone removed]
This shop is in the bay area of course not in the central valley.
Jerry Woods Enterprises
Jerry
491 McGlincey Lane #1
Campbell,CA,95008
[phone removed]
There are a few other shops in CA but I think these are located in southern CA.
Here's the link and you can search out a shop:
http://www.guardtransmissionllc.com/dealers/
My MY2000 was also dual-row, but my understanding is that some 2000's had single-row.
Don't confuse the "solution" with the LNE Upgraded Ceramic bearing. The "Solution" replaces the single-row bearing with a re-engineered unit that has no bearing. The LNE Ceramic Upgrade bearing is available in single and dual-row versions and is a direct replacement for the stock bearing.
I changed out the bearing on my 99 C2, just for piece of mind. 65k and needed a clutch so while in there just do it. Was it needed???? But it was worth the piece of mind for me... But I am selfish pretty attached to my toy..it's your money and if your asking about it then you have the same worries as many of us had. Once it's done you will thank yourself as you will be set.
Quote:
IIRC...
If you have a double row bearing 996:
It purportedly has a slightly lower failure rate.
You can replace it externally with an OEM-type bearing (pelican).
You can replace it externally F6/LNE's 'IMS Retrofit'ceramic hybrid single row bearing.
If you have a single row bearing 996:
It purportedly has a slightly higher failure rate.
You can replace it externally with an OEM-type bearing (pelican).
You can replace it externally F6/LNE's 'IMS Retrofit' ceramic hybrid double row bearing.
You can replace it with F6's new 'IMS Solution', an oil-fed bearing that is more expensive, more difficult to install, but should last the lifetime of the engine.
In addition to the above, you can also install the LNE/F6 "IMS Guardian" and "IMS Guardian Jr.", which does nothing to increase the life of your existing bearing, but will warn you of deterioration before engine damage is done, allowing you to replace it when actually needed rather than for "peace of mind".
At $250 for the Jr., I really wonder why all the IMS paranoia doesn't just have everybody installing one of these quite inexpensively rather than dropping their transmission solely to install a replacement for a bearing that might or might not be deteriorated... Now if you are already dropping your transmission for something else like a clutch or RMS seal, than absolutely, I'd say spend the extra few $ for the IMS retrofit.
