This controversial topic resurfaces in the form of a video I was asked to take down last year (which I did), but re-edited to point out the many errors that were in it. I didn’t want to spread any bad information that I got from a trip to HBI Auto.
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I've known the solution to permanently fixing the IMS issue was to remove the seal from the original bearing so engine oil would lubricate the bearing. I did this simple fix when I replaced my clutch years ago. I argued with LN engineering on this issue and returned their so called IMS bearing fix kit. This was 5 years ago. So now they just got rid of the seal and considered it a fix. Geez I wonder where they got that idea from???
I bought my 97 just to avoid the extra fail rate of IMS bearing and pull cable throttle for the instant response. I like it a lot so far, impressed even though I just walked out from a miata.
Yeah, and it sounded like he was suggesting that one should let the vehicle idle for an extended amount of time, buuut that procedure is detrimental on new-era Porsches with modern emissions equipment.
FWIW I caught the IMS failing in my 97 Boxster in time to prevent any damage. I got the rattle on startup symptom and got it to the shop whereupon I learned all about IMS bearings… My mechanic offered my a "standard" or "race" replacement which I chose thinking it should be better, not sure of the specifics without hunting down the receipts. Had the clutch and clutch plate replaced at the same time.
As for the "tech" in this video, keep away from him. Anyone who works on engines and doesn't know that oil doesn't absorb water and that engines operate with a degree vacuum in them shouldn't be allowed near an engine.
I have a 99 and I am going to go with changing my oil often until I need a clutch then look at doing the IMS bearing at that point. I believe I read that the pre-2000 had an even lower failure rate since it was dual bearings.
I have the TRS Direct Oil Feed kit in my 2001 Boxster. He keeps talking about "oil leaks" from the pressure, but my car doesn't leak. I've had it in there for over a year, and it's my track car, so it gets pounded pretty good, and it does not leak. Maybe it just needs to be installed correctly<g>. (And I didn't do it, my mechanic did.)
My 986 direct oil fed IMS solution (completed by previous owners) doesn't leak and seems to be working fine. Been 5+ years and 25k+ miles. He doesn't look like the kind of gentleman that accepts when he is providing inaccurate information during his presentations. Thanks for the video!
Very good update and very important.
it always amazes me how many people say "if it hasn't happened yet (or after XXX miles), It won't happen. It astounds me how many times I've seen that statement on the various forums and places on the internet…
Interesting video. I didn't see the video you pulled down but I appreciate anyone spreading knowledge about the Cayman/Boxster. I have a 2007 Cayman 2.7 – I am not at all worried about IMS issues. I tend to think they are highly overblown issues. I hear a lot about “affects 10% of cars” – my guess would be less than 1%. They're such wonderful cars, they drive well, look good, and are built well. Drive and enjoy them.