15 captured repliesPartial discussion capture · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHIms advice please and help
Leading reported evidence
Install will be better
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0
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1
Discussions
Read evidence and context
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Performed · outcome unconfirmed
...Porsche won't sell you an original weak and poorly designed bearing with the fragile stud thus whatever replacement is fitted will be better...
Leading evidence: 'Install will be better' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check bearing' (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
So your advice on having the IMS bearing replaced or buying one with a replacement bearing is duff information unless the stud is replaced with a more robust solution.
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Suggestion
if you want piece of mind, it would be a good idea to get Hartech to check the bearing when you have your clutch replaced.
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Suggestion
They will only replace a bearing during a rebuild..........unless when they do your clutch they find the bearing is about to go bang.
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Suggestion
Get the bearing changed on purchase or buy one with this work done would be my advice unless you enjoy a £10k gamble?
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Performed · outcome unconfirmed
So your advice on having the IMS bearing replaced or buying one with a replacement bearing is duff information unless the stud is replaced with a more robust solution.
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Suggestion · Original poster
That was done in 05 so might have a ride down Hartec later this year for a new clutch and ims change with the stronger one , until then I'm going to change the oil n filter every 2000 miles or every 3 month whatever comes first and drive it very hard :thumbs:
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.
15 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
911uk: 1 discussions
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Generation: 20261027T053112Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
Hi should be picking up my car soon but was wanting if someone can be so kind to upload a noise from a stock 996 c4 or c2 so I can rule out what the ims is like , it's been a long time since I heard a stock 996 so was wanting to find a good clear sound to avoid me buying a car with possible bike issue but more important not buying it because I thought no it's knocking when it isn't. Or is there any good clear sound files ? Thanks for any help
...I am afraid that comparing engine sounds will not help you...it could sound and drive perfectly ok until it fails...ask me how I know!
Mine was perfect for 1000 miles and then the stud snapped off the ims...now being completely rebuilt!
Ignore those that will tell you not to worry...Hartech gave me this advice when I spoke with them prior to purchase...and then it broke...
Get the bearing changed on purchase or buy one with this work done would be my advice unless you enjoy a £10k gamble?
It doesnt happen very often these days .. but as mentioned it can , my advise is always if your worryed about it then replace it .
Re a noise .. you dont really get one ..
Example .. a collegue of mine at OPC took a car on road test for a phone fault .. poor sound quality .. as he was speaking to the workshop foreman ( hands free ) the bearing let go .
It was that quick and no prior warning .
Thats the scary bit .. the reality .. ive not seen one of these go in over a year .. might be pushing 2 .
...semantics; the stud is attached to the bearing, the bill for the repair is the same...the engineering equally poor and the risk just as unpredictable...
But a different fault from what you stated. So your advice on having the IMS bearing replaced or buying one with a replacement bearing is duff information unless the stud is replaced with a more robust solution.
Thanks yea sounds as it was an rms leak that was fixed along with a new clutch and flywheel and ims plate. That was done in 05 so might have a ride down Hartec later this year for a new clutch and ims change with the stronger one , until then I'm going to change the oil n filter every 2000 miles or every 3 month whatever comes first and drive it very hard :thumbs:
Hartech son't offer that service. They will only replace a bearing during a rebuild..........unless when they do your clutch they find the bearing is about to go bang.
Just have the outer seal removed from the bearing and leave it alone.
Funny how Porsche's weak under spec'd bearing was perfectly fine in over 90% of all M96/M97 engines.
OP,
if you want piece of mind, it would be a good idea to get Hartech to check the bearing when you have your clutch replaced. Alternatively, there are many well respected Indies who have replacement / upgrade bearing solutions which ought to give you the piece of mind you are looking for. It depends on the level of risk you are prepared to accept.
As has been mentioned, there are no characteristic noises that indicate future or imminent failure.
Hi Alex,
It would be interesting to know from Hartech which type are failures, who fitted them and how many failures occur. From what I have seen Baz does not say that people should not install IMS replacement / updgrades.
Here is a respected Indie with zero replacement failures for example!
https://rpmtechnik.co.uk/servicing/ims-bearing-upgrade/
It is possible to rubbish any statement with one liners and without the facts, as Baz advocates, people are free to fit replacements and some are good solutions. GMG may wish he had! It is what risk you are prepared to accept of an IMS bearing failing.
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