19 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
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YOUR RESEARCHIMS bearings pics
Leading reported evidence
Clean i just got my old single row back...after it
Performed · outcome unconfirmed
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Performed · outcome unconfirmed
I just got my old single row back...after it was cleaned up my races had some pitting, but it spun with no resistance at all and the center shaft wobbled back and forth some.
Leading evidence: 'Clean i just got my old single row back...after it' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Clean i just got my old single row back...after it' (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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Suggestion · Original poster
LN says to check or change bearing at 4-5 years or 50-60k miles - maybe coincide with some other repair/upgrade etc.
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Suggestion
Oil changes by the book or better work quite well huh?
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Clean i just got my old single row back...after it
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
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 just got my old single row back...after it was cleaned up my races had some pitting, but it spun with no resistance at all and the center shaft wobbled back and forth some.
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.
19 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
Rennlist: 1 discussions
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Generation: 20261026T155324Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
Please forgive the fact that I am without any mechanical aptitude. Do these picture indicate no damage to OEM IMS? I am scheduled to get mine done next week. Getting clutch replaced and a B&M short shifter done while I'm at it. BTW, any one in DFW used RAC Performance? Would you recommend them?
I've seen bearings that looked 9000% worse then these. Some missing *****, others with chunks out of the ***** and the races look like a lunar landscape. My indy has quite a collection along with another indy I drop into for oil filters has a jar with dead ones as well. These look like they could have gone many more miles or years even. Oil changes by the book or better work quite well huh?
out of curiosity how freely did yours spin before you tore it down? and did your center shaft have any wobble to it? I just got my old single row back...after it was cleaned up my races had some pitting, but it spun with no resistance at all and the center shaft wobbled back and forth some.
Take a micrometer to each of those ***** and measure around the circumference of them.. Visual inspections don't illustrate the stage 1 bearing wear very well at all, but it can sometimes be measured.
Based on what this bearing looks like I'd say the driver had the proper driving technique and might have owned an air-cooled Porsche in the past. This bearing is still worn and looking at it under heavier magnification will show a lot more of the wear.
Mine looked like that with 103k miles. I was "not" happy about that but of course it was too late. Now I have to change mine every few years per LN's website.
I will post a pic of my IMS bearing as soon as my mechanic shows me what was inside my oil filter. Disintegrated last Wed, but motor may actually survive. Sitting at idle, heard what sounded like the timing chain flopping around and shut it down. No fault codes indicating cams out of time, and leak down was good. More to come, but moral of the story: keep your ears open - especially at startup, and you might hear this coming...
2005 997C2 20k miles and a few track days.
Well, even though your bearing looked fine, like mine, the products in our cars now are very likely better than original in design and quality. LN says to check or change bearing at 4-5 years or 50-60k miles - maybe coincide with some other repair/upgrade etc.
