10 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHIMSB verification using scope?
Reported or suspected cause
flywheel
Suggestion or failed attempt
No successful repair reported for this finding.
0
Identified cause
1
Suspected cause
0
Reported fixes
Read evidence and context
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that suspect a cause
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Leading evidence: 'flywheel' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, the most frequently mentioned possible cause is 'flywheel' (1 discussions; 0 report identifying it and 1 suggest it). The most frequently discussed action is 'Recommend before' (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.
Source reports, not a diagnosis or a success probability. Counts refer to discussions and can overlap.
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that suspect a cause
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suspected cause
FWIW,, if I'm in deep enough to have the engine and tranny out,, no way its going back in the car without a new rear main seal and probably a pilot, too cheap to leave a old one in there..
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that contain suggestions
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion
This method has been recommended before for 997 cars since you cant change the bearing without splitting the case.
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that contain suggestions
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion
This method has been recommended before for 997 cars since you cant change the bearing without splitting the case.
Replace clutch, you can always remove the flywheel
Suggestion or failed attempt
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that contain suggestions
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion
if you ever drop the transmission to change the clutch, you can always remove the flywheel, inspect and remove the outer seal from the bearing so that it gets some splash oil in there.
Replace clutch, you can always remove the flywheel
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion
if you ever drop the transmission to change the clutch, you can always remove the flywheel, inspect and remove the outer seal from the bearing so that it gets some splash oil in there.
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion · Original poster
Maybe no room to see the bearing cover straight on, but if LN can run an 3/8" oil feed line in to the bearing cover then certainly a scope camera half the diameter would easily fit.
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suspected cause
FWIW,, if I'm in deep enough to have the engine and tranny out,, no way its going back in the car without a new rear main seal and probably a pilot, too cheap to leave a old one in there..
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.
10 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
Rennlist: 1 discussions
0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.
0 acknowledgements have no verified action link; they do not establish a repair result.
Generation: 20261026T205155Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
Has anyone ever used a scope to see if the IMS Bearing has been replaced? Is there room? I'm sure the IMS bearing cover would be identifiable for each manufacturer. If it was my car I'd be fine putting a 1/4 inch "weep-hole" in the right place to prove it. Even the LN Solution oil feed hole is at least 1/2 inch, right? Anyway, just a thought.
When I bought my first 996 in 2010, the PPI was at Autometrics, a well know race shop in SC. I asked them the same question. The answer was an emphatic NO. I think the issue is the flywheel. Too long ago to be sure. Maybe one of the DIY’ers here can confirm the obstacles.
Interesting. Maybe no room to see the bearing cover straight on, but if LN can run an 3/8" oil feed line in to the bearing cover then certainly a scope camera half the diameter would easily fit. I believe LN DIY'rs don't get a sticker or the other mfg'rs don't have a sticker program, so if I DIY a bearing I will take pictures and mark the sides of the bearing cover to prove it.
I had a '99 with a Porsche re-manufactured motor, including all the factory paperwork. That included the build date of December 15, 2005. I wanted to know if was the non-serviceable bearing. The only way to know is look at the nut on the plate. If it is 22mm, it the the final bearing design, non-serviceable. So I guess they needed a straight on look.
I would think that a picture of a DIY bearing and all its associated paperwork would be absolutely essential when you sell. For me the price delta between doing it myself versus resale with a respected shop receipt and sticker might might me rethink DIY.
Good luck with whatever you decide to do.
Installing the IMS Solution involves drilling the edge of the engine case for the oil feed line - it doesn't use an existing hole. You _could_ drill one yourself...
The reluctor ring for the crank position sensor is under the starter gear ring and there will be no room to feed a scope down. BUT maybe, the gap in the reluctor ring is enough, if the crank position sensor is pulled, to push a scope down. I have no idea if removing the sensor is possible with the engine in the car. So this is just pure speculation on my part.
Hmm. I was thinking you could go through, and snake it around the side and work it close enough to see the flange..
Purely speculation..
they make bore tubes as small as 1.5MM but very narrow field of view..
if you ever drop the transmission to change the clutch, you can always remove the flywheel, inspect and remove the outer seal from the bearing so that it gets some splash oil in there. This method has been recommended before for 997 cars since you cant change the bearing without splitting the case. I would only recommend doing this is your car has a dual row bearing, but that is just my personal opinion.
FWIW,, if I'm in deep enough to have the engine and tranny out,, no way its going back in the car without a new rear main seal and probably a pilot, too cheap to leave a old one in there.. and in for a nickle as they say,, pulling the IMSB seal is trivial at that point..
This is a source reference. Confirm exact model applicability in the original material.
