29 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHPictures of my IMS bearing 100k miles
Leading reported evidence
Replace oil at 67000 and the filter was
Performed · outcome unconfirmed
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 performed work without a confirmed outcome
1
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0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Performed · outcome unconfirmed
BTW I just changed my oil at 67000 and the filter was clean when I cut it open.
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
Put the drilled metal covers on the foot pedals, did the easiest of jobs changing the Reverse light switch, Cab top fixed and working good now, I had the front bumper off and cleaned between the radiators and Condensers but as far as dropping engines and heavy stuff I will have to bite the bullet and let others do those things for me if/when needed.
Leading evidence: 'Replace oil at 67000 and the filter was' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Clean between the radiators and condensers' (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.
Replace serpentine belt and have plugs and sleeves
Performed · outcome unconfirmed
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 performed work without a confirmed outcome
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.
Performed · outcome unconfirmed
Coolant changed, Serpentine belt and have plugs and sleeves to change soon.
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 performed work without a confirmed outcome
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.
Performed · outcome unconfirmed
And yet another bearing has been changed which had next to nothing wrong with it.
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 performed work without a confirmed outcome
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.
Performed · outcome unconfirmed
I use Motul Synthetic 8100 X-cess Sae 5W40 and change it every 5000 miles.
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 performed work without a confirmed outcome
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.
Performed · outcome unconfirmed
I send my used oil for a UOA...in addition to inspecting used oil filters.
These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.
Clean between the radiators and condensers
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
Put the drilled metal covers on the foot pedals, did the easiest of jobs changing the Reverse light switch, Cab top fixed and working good now, I had the front bumper off and cleaned between the radiators and Condensers but as far as dropping engines and heavy stuff I will have to bite the bullet and let others do those things for me if/when needed.
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
Put the drilled metal covers on the foot pedals, did the easiest of jobs changing the Reverse light switch, Cab top fixed and working good now, I had the front bumper off and cleaned between the radiators and Condensers but as far as dropping engines and heavy stuff I will have to bite the bullet and let others do those things for me if/when needed.
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.
29 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: 20261027T031046Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
I figured I would share pictures of my IMS bearing that was removed from my car.
I opted to go with the Pelican Parts bearing kit rather than the LN.
Bearing looks fine but definitely has significantly more resistance than the new Pelican Parts one does.
Also I find there is more side to side play on the Pelican Parts new bearing, where to old one had none.
I'm guessing my seals may have started to go bad on the original, causing the resistance and lack of side to side play.
Either way, it rolled smooth and had no hang up or friction points.
And yet another bearing has been changed which had next to nothing wrong with it. Can this be called preventative maintenance? Personally I think not. Not that anyone would care what I think. If so, then can we say that eventually every moving part of the 996 will wear out and should be changed before it does starts wearing out? And before anyone jumps in to say that the IMS gives no warning of failing in comparison to other moving parts on the car, , It does. If owners would cut open their oil filters every 5000 miles, they would quickly find out if the bearing was failing or some other important part of the engine was wearing. BTW I just changed my oil at 67000 and the filter was clean when I cut it open. I use Motul Synthetic 8100 X-cess Sae 5W40 and change it every 5000 miles. I would like to add that I will change my IMS IF I find the slightest of debris inside the oil filter. If I still find more on the next change then I know it is something other than the IMS bearing and further investigation would be required at that point.
2002 996 c2
Not the original owner, have had it since 2006. Bought with 30k miles.
I do oil changes every 3000-5000 miles. Regardless of time.
I use Redline oil but have recently changed to Total.
I will take apart the original bearing tomorrow and post up more pictures.
Any advice on how to take the seals off?
Hurdigurdiman - I agree with you but couldn't afford to have my motor blow. So whilst doing a clutch, I decided to use the pelican kit to change the bearing. My shop didn't charge me much and the parts are much cheaper than the LN kit.
Other items I'm changing while under there - cam plugs, all cam chain tensioners, AOS, RMS, Clutch, flywheel, TO bearing, clutch arm.
Don't just pop the seals, cut that bearing apart and post pics.. No other way to grade that bearing otherwise. All too often people think they have a "good' bearing but they don't tear it down to really see.
Philip I didn't realize that you were doing the work yourself. Good for you that you decided to do the IMS while you had it apart. Don't I only wish that I was younger when I got my first 996 and could have turned my attention into a deeper mode of thought as you did in DIY work. I ache at the very thought. I admire you so much in that you can do anything on your car. Work these days is just another four letter word to me lol.
I also think that a bearing under any real load (installed) will act differently than when its spinning on your finger. Philip already mentioned some resistance compared to the new one. Not a good sign. Good call to swap it out when you were in there, looks like you may have dodged a $10K bullet.
Hurdi, I believe he said a shop did it. Don't beat yourself up over it. You got some years than a lot of us here and I for one will be happy if I still have a sports car by then, let alone being able to use a computer and understand the younger lingo. If I'm able or inclined to work on my cars then, then I know I would be one step to being senile.
I still do a lot of simple DIY tasks on the car and I will be 72 a week from today. Ie:- air and cabin filters, oil changes, brake pads and fluid changed. Coolant changed, Serpentine belt and have plugs and sleeves to change soon. Put the drilled metal covers on the foot pedals, did the easiest of jobs changing the Reverse light switch, Cab top fixed and working good now, I had the front bumper off and cleaned between the radiators and Condensers but as far as dropping engines and heavy stuff I will have to bite the bullet and let others do those things for me if/when needed. I admire the guys who can strip the engines. By my doing DIY I have come to love the car even more. That's a lot of satisfaction knowing that you did the work yourself and that it was done correctly. All in favor say Hi. Hey Alpine, thanks for your encouraging comments.
well taking apart the bearing was much more difficult than I anticipated.
I pressed out the bolt center and tried to get it apart but that didnt work. I then used a punch and just made a mess.
This is the best photos I got.
Well judging by how much engine oil is in the bearing and the fact that it had a significant difference in resistance than the new one I received from Pelican, I would have to say it was probably on its way out eventually? Haha
Apparently, innumerable fragged engines, a class-action settlement, and subsequent designs in which it is deleted are not sufficient proof that the IMS bearing is now in the preventive maintenance column.
Only one in twenty 996 engines have been known to fail. I think those are the stats in the USA. I wonder what they are in Europe where drivers KNOW how to drive a manual car. Probably one in a hundred if the truth is known. Is that alright 5CHN3LL ? I bet there will be a few on here wish they could cue Hurdi.. Yeh with a ****ing billiard cue hahaha
Too bad I didn't have the ability to cut it in half but for those that care, the bearing was still very solid. No side to side slop, even the new one from pelican I got had a little side to side movement.
But who knows. At a 100k miles and has to be serviced now, I'm not complaining.
Autofarm was posting detailed information about this and other modes of M96 failure in '06 and before, Hurdi, so I don't think this is a problem unique to the NA market.
1 in 20 - which is higher than your previously unsubstantiated facts - is still a 5% failure rate. Would you buy a plane ticket on an airline that offered a 95% chance you'd arrive at your destination alive?
I don't understand why your knickers are so twisted about the consideration of the IMS bearing as a wear item.
This is a source reference. Confirm exact model applicability in the original material.
