51 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHIMS BEARING AND CRANK SEAL REPLACEMENT
Leading reported evidence
Clean area
Performed · outcome unconfirmed
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
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Discussions that performed work without a confirmed outcome
1
Discussions that contain suggestions
1
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Suggestion · Original poster
Oh, and yes, I cleaned the area, but hard to tell if oil contaminants was from IMS or RMS.
Leading evidence: 'Clean area' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check application' (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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Performed · outcome unconfirmed · Original poster
The existing bearing appeared fine, but I replaced anyway.
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Performed · outcome unconfirmed · Original poster
I have been able to determine that the IMS bearing was replaced and that the OEM flange was reused.
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Performed · outcome unconfirmed · Original poster
Planned to replace IMS bearing as well, but it appears that it was replaced.
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Performed · outcome unconfirmed · Original poster
I ran a buddy's 1986 911 SCCA when I was stationed at NAS Pensacola.
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Suggestion · Original poster
Replacing AOS with engine/trans drop so performing preventive maintenance while the engine is out: clutch, starter, crank seal, plugs, thermostat, hoses, etc.
Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.
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Rennlist: 1 discussions
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Hello All! I am ready to replace the IMS bearing on crank seal on my 2002 996 Carrera. I'm using OEM replacement IMS bearing and crank seal. Does anyone have the appropriate specialty tools to perform the removal and replacement that I could borrow? Greatly appreciate any support.
Email:
[email removed]
Regards,
Lane
I guess I'm going to be the first to say it - don't put a Pelican Part bearing in your car. If you're going in that deep, get the
Solution
from LN Engineering. I also believe they have the tools to rent. Your single row IMS bearing is the most at risk so do it once and do it right.
Read everything in their technical section
https://lnengineering.com/
Part of why I wished him luck.
Lane - you should provide more information on your car:
Miles?
Why you think it needs an IMS bearing?
Why you think the Pelican part is a good idea?
How it was cared for (records, receipts, etc.)?
How long have you owned it, how many miles have you put on it?
What has been inspected?
You're going to get a lot of different feedback and a lot of recommendations. Filtering what is valid and what works for you, is up to you. Good luck.
Why use the same failure prone part? Do it right and never worry again. The LN IMS Solution for the win!
Have you gone through the prequalification check list?
So I've dropped my engine and trans and removed the clutch and flywheel to inspect IMS bearing and crank seal. To my surprise I find that the IMS bearing flange bolts and center nut each have torque seal placed on them. I'm assuming that this isn't factor. The flange reflects a German made component with the part number: K99602401 on the flange. Does anyone know if this is an OEM original part number or possibly after market? My 2002 996 Career has 70K. I can't find any record in the documentation that I have that reflects IMS bearing replacement. I've researched the flange part number, but no luck identifying so far. Appreciate any insight and feedback.
Appreciate everyone's feedback. I neglected to provide additional info:
I'm the 3rd owner
70K miles
IMS not problematic
Replacing AOS with engine/trans drop so performing preventive maintenance while the engine is out: clutch, starter, crank seal, plugs, thermostat, hoses, etc.
Planned to replace IMS bearing as well, but it appears that it was replaced. I don't have any record of this being done. I have the maintenance book, but not entry. Had routine overservice work at least annually.
I've put 20K over that past six years; no driving in the winter; MI snow
I change oil and filter twice annually and always before I prep for its winter hibernation
No mechanical issues since ownership
I'm not interested in providing the prequal check list information, which seems excessive. I understand liability. I'm performing all of the work myself so I am searching for a IMS solution that is straight forward and reliable.
The flange bolts and center bolt are open to oil inside the crankcase - hence the thread sealer. This is a normal part of IMSB replacement. I'm interested in why you would disregard the pre-qualification process, as it's meant to protect you in the long run? By the looks of the flange and the surrounding area, it's been cleaned up quite a bit - was it leaking before?
Is that dual row, single row, larger bearing? And what is meant by, '2018 onward'?
This isn't a one size fits all condition. I did check that part number at Sunset Porsche's site. Very little detail. They list it as an "As Bearing Shaft". What the hell is that?
^^ That would be the IMS (Intermediate Shaft) itself (including the bearing) - I'm pretty sure this is how they sell it (not bearing by itself - though they apparently did sell the bearing & Flange for a short period of time).
That makes some sense. Still not clear which application it fits.
I recall seeing a post by either Jake or Charles where they bought a genuine Porsche IMS bearing from a dealer. As part of that post, it was shown to very closely resemble the LN retrofit, right down to the ceramic ***** (IIRC) and an almost exact duplicate of the flange. It was noted that, that part was only available as a dealer part for a short period.
No
That is the part number for the bearing itself. Single row. Latest version from Porsche. Available since late 2017-2018.
Flange would be 996.105.124.80
The price I saw for that part would not reflect the IMS. We still don't know the application. Single row could be 2000-2004, right? If it's the larger bearing, then that's a different application as well. I don't believe they are interchangeable.
It is the single row for the 00 to 04 cars... and yes... it is really expensive
You better check the application for a specific car with the parts guys at the Porsche dealer
I know that thread sealer is used. I'm was pointing out the use of torque seal, which is used to check the bolts and nut for any loosening. I use torque seal on nearly every fastener in my planes, but I haven't seen used in most auto work. I'm comfortable qualifying myself and performing the work. I appreciate your feedback.
I've been trying to piece together little bits of your posts to build a picture. I figured you may have messed with planes. Do you have your own plane(s), or work on them? The Oscoda connection is what has me curious. Do you have a connection with Wurtsmith, or their air museum?
It's been a while, but we used to compete in autocrosses at the airport there. Great site and good vacation country.
Ok, so by "Torque Seal" I assume you mean something like Loc-Tite (thread locker) - it looks like there's some red stuff on the center nut). It's not recommended in the instructions for "The Solution" - And I certainly wouldn't use "red", as that's generally reserved for connections that are never to come apart. In any case, whatever you decide, I hope it works out for you. Good luck with the work
Hey Scott. Yes, since retiring from the Navy I have build four experimental aircraft and restored another 5. I currently own and fly a Titan T51 Mustang (profile pic), which I restored a few years back. I also share a Bonanza A36 with a Buddy. Yes. I hanger both planes at Wurtsmith and have the privilege of flying from a beautifully new 12,000' long runway. Fast cars and planes right!
Well, not exactly. Torque seal is used to "mark" fasteners, both on the fastener itself and and the face of the seating surface. This forms a bridge of torque seal which is visually inspected to ensure that the bridge is intact. If not, the fastener has moved. The three flange fasteners and the nut had torque seal placed on them, which washed off when I cleaned the area.
I have been able to determine that the IMS bearing was replaced and that the OEM flange was reused. Unfortunately, I am unable to determine what replacement bearing was used, when the work was done, and by whom. I am replacing regardless along with all many other preventive maintenance components.
Not familiar with ASSA. My google did not find something that makes sense. Is this cars, or planes? If cars, you probably mean SCCA. That's the club I belong to and run with.
Here are a couple of shots from a couple of my most 'recent' trips to Wurtsmith.
Sorry...I should read what I type prior to firing. Yes....SCCA! Those are great pics and looks like such great fun. I ran a buddy's 1986 911 SCCA when I was stationed at NAS Pensacola. Fantastic fun!
IMS bearing replacement went very well; surprisingly straight forward process. The existing bearing appeared fine, but I replaced anyway. I used the Pelican bearing. I don't drive my 911 for five to six months during Michigan's winter weather. So I plan to replace the IMS bearing every two years regardless of mileage. I enjoy the work and have plenty of winter down time for engine/trans drop. Appreciate everyone's guidance.
I think he said he enjoys the work. And if he changes out the $200 bearing every two years, it will take eighteen years for the Solution to pay off in "raw" numbers (I can show you my math).
We all make choices based on many factors. What's right for you (or me), may not match with the next guy. I think Lane has a handle on this.
Completion update on my 2002 996 Carrera: replaced IMS bearing, RMS, starter, clutch/slave cylinder, plugs, thermostat, several hoses, AOS, and a few other preventive maintenance parts. All went very well. I now have 100 or so miles since engine/trans reinstall. This all started due to an AOS failure. Again, appreciate all the feedback.
