12 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHWhat IMS bearing is this?
Leading reported evidence
Replace leads one
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
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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
Leads one to think the bearing was changed out but reused the flange.
Leading evidence: 'Replace leads one' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace leads one' (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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1
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Suggestion · Original poster
I am trying to decide if this is some thing that can be replaced without having to split 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.
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Suggestion
Like DeJeeper says the tensioners will pull on the chains/IMS and have it out of place...Also the valve springs can try to roll the cams and tighten the chains if they are not locked..
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.
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Suggestion
Uses an off-the- shelf roller bearing with the OEM housing and a Custom center bolt/nut with cotter pin and spacers if used on dual row cars...
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.
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Suggestion
Uses an off-the- shelf roller bearing with the OEM housing and a Custom center bolt/nut with cotter pin and spacers if used on dual row cars...
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
Like DeJeeper says the tensioners will pull on the chains/IMS and have it out of place...Also the valve springs can try to roll the cams and tighten the chains if they are not locked..
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.
12 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.
1 acknowledgements have no verified action link; they do not establish a repair result.
Outcome without a verified action link
The LNE removal tool package did not fit this 10mm shaft so I had to weld up something and then that broke because the IMS shaft is no longer center on the hole so the tool did not work.
Can anyone tell me what IMS bearing assembly this is?
The shaft is 10mm, the castellated nut is 17mm on the outside. The part number on the cover plate is K99602401 . The first letter is a scripted capitalized K (or KC, or KG, hard to tell).
I am trying to decide if this is some thing that can be replaced without having to split the case. And what is its replacement.
What we know is that is definitely factory flange for a 6204 single row bearing. The nut and cotter pin are not. Leads one to think the bearing was changed out but reused the flange.
The person went a little crazy the black silicone sealant too.
that was an IMS kit made by a guy name Robert Herst ( probably misspelled his last name) who has a Porsche Shop and promoted these and sold them on E-bay also I think...
Uses an off-the- shelf roller bearing with the OEM housing and a Custom center bolt/nut with cotter pin and spacers if used on dual row cars...
The bearing can be replaced for piece of mind ,with same just get the number off the old bearing...
You will need to know if the Intermediate "Shaft" is a Dual Row or Single Row ( that "kit" will fit either with the appropriate spacers) , then order the correct LN Retrofit Kit or IMS Solution...
You will need to pull that bearing and look at the "SHAFT" to order the correct LN Replacement...
Yep, the guy is
Bob Hearst and still has a Facebook account, but his website "www.por-ims.com" was not renewed last year. He had a tendency to not play by the rules and why his account was banned here on Rennlist. He was also warned several times for doing the same on the IMS bearing Facebook group.
So what a ****-poor design this thing was. The LNE removal tool package did not fit this 10mm shaft so I had to weld up something and then that broke because the IMS shaft is no longer center on the hole so the tool did not work. I resorted to a blind hole bearing puller to get the bearing off.
1. It looks like a single row bearing 14mm thick.
2.
@Porschetech3
, I released two of the three chain tensioners but the shaft is not centering itself, does it look like I have to release the last tensioner under AC compressor to make it loose enough to center the shaft?
Yes something is pulling on the chains and has the shaft pulled up/over
Like DeJeeper says the tensioners will pull on the chains/IMS and have it out of place...Also the valve springs can try to roll the cams and tighten the chains if they are not locked..
If the cams are locked you can also rotate the crank just a few degrees "counterclockwise" to loosen the chains and the IMS will drop down/over......
All is well. Even releasing the third chain tensioner did not center the shaft. I had to back off the main crank a little bit to have it drop to center position. All is good.
Good deal...Porsche actually has a special tool that screws onto the stud and has an arm that fits against the block and a Turn-buckle that can "force" the IMS against the tensioners or chain tension to center the shaft for reinstalling the IMS cover..... but I hate to even use it...I much much rather have the shaft centered so it will just "slide into place" ...
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