View Poll Results: Has YOUR car suffered an IMS failure
Voters: 1591. You may not vote on this poll
IMS bearing failure for your 996, Y or N? tell us (yr, 996 Mk1 or MK2 failure mode)
#931
Pro
I'd just read from various sites and magazines that non-IMS replaced vehicles probably will have more longevity with a 5k service, but I know the book says 10k, so maybe if the next inspection comes out looking clean, I'll bump it up to 7k. I plan to only drive mine 2x a week or so.
#932
Rennlist Member
I will certainly add that to the list of things to check when I take it in for it's next service, in another 3k miles or so.
I'd just read from various sites and magazines that non-IMS replaced vehicles probably will have more longevity with a 5k service, but I know the book says 10k, so maybe if the next inspection comes out looking clean, I'll bump it up to 7k. I plan to only drive mine 2x a week or so.
I'd just read from various sites and magazines that non-IMS replaced vehicles probably will have more longevity with a 5k service, but I know the book says 10k, so maybe if the next inspection comes out looking clean, I'll bump it up to 7k. I plan to only drive mine 2x a week or so.
#934
Racer
2003 C2 cab with 75k. Changed IMS as it needed a clutch (10% left). Original bearing looked fine. Went to the LN single row retrofit dual row pro.
#935
Rennlist Member
Local race shop with a large fleet of 996 cars said same thing. They only run 0W40 MobileOne.
#940
Instructor
'03 3.6. 61k stock single row IMS. Zero play tight as a virgin. Lots of life left. Replaced today with LN Engineering IMS Pro Retrofit, single row ceramic bearing
#941
Racer
99 M96/Tip - 82300 miles - replacing
Rather than rely on the statistic someone gave me that the failure rate for the 1999 M96 mated up to a tiptronic was .4%, I took the car to my long time shop to get an LN replacement. It was the best decision yet. My guy at the shop said I should defitnitely buy a lottery ticket this weekend. The IMS bearing was intact, but there is about 1/8" of play - the beginning of the end. Caught it just in time before any badness happened.
We found a few small chain guide chips in the pan, so we're doing upper guides and maybe new tensioners. New rear main seal too, just in case. AND and air/oil separator...preventative replacement I guess. At least the water pump had already been replaced!
Dodged a bullet with the IMS.
We found a few small chain guide chips in the pan, so we're doing upper guides and maybe new tensioners. New rear main seal too, just in case. AND and air/oil separator...preventative replacement I guess. At least the water pump had already been replaced!
Dodged a bullet with the IMS.
#942
Former Vendor
Rather than rely on the statistic someone gave me that the failure rate for the 1999 M96 mated up to a tiptronic was .4%, I took the car to my long time shop to get an LN replacement. It was the best decision yet. My guy at the shop said I should defitnitely buy a lottery ticket this weekend. The IMS bearing was intact, but there is about 1/8" of play - the beginning of the end. Caught it just in time before any badness happened.
We found a few small chain guide chips in the pan, so we're doing upper guides and maybe new tensioners. New rear main seal too, just in case. AND and air/oil separator...preventative replacement I guess. At least the water pump had already been replaced!
Dodged a bullet with the IMS.
We found a few small chain guide chips in the pan, so we're doing upper guides and maybe new tensioners. New rear main seal too, just in case. AND and air/oil separator...preventative replacement I guess. At least the water pump had already been replaced!
Dodged a bullet with the IMS.
Debris was found in the oil sump, along with what sounds like a Stage III bearing failure in process, yet the shop continued with the IMS Retrofit?
I am sure that LN Engineering will want to know what shop did this work. What was the shop's directives for you moving forward?
#943
Racer
Perhaps I did not state the facts correctly. Before we start a witch hunt on my local shop, there was no pre-buy inspection. A cardinal sin, yes...but the price had all this factored in. This was elective surgery. There was no metal in the sump, just enough plastic to warrant checking the upper guides. The bearing housing is undamaged, so whatever the hell a Stage 3 failure is - it was not happening. The IMS had a little wobble. It's in the shop to get it replaced and the removal found that it was time. The new LN bearing should have arrived yesterday. My guy has done many, many LN fits. More than qualified.
SO....I am going to leave it at that. If you want more details, you can send a private message and I may be able to supply more details.
SO....I am going to leave it at that. If you want more details, you can send a private message and I may be able to supply more details.
#944
Rennlist Member
Perhaps I did not state the facts correctly. Before we start a witch hunt on my local shop, there was no pre-buy inspection. A cardinal sin, yes...but the price had all this factored in. This was elective surgery. There was no metal in the sump, just enough plastic to warrant checking the upper guides. The bearing housing is undamaged, so whatever the hell a Stage 3 failure is - it was not happening. The IMS had a little wobble. It's in the shop to get it replaced and the removal found that it was time. The new LN bearing should have arrived yesterday. My guy has done many, many LN fits. More than qualified.
SO....I am going to leave it at that. If you want more details, you can send a private message and I may be able to supply more details.
SO....I am going to leave it at that. If you want more details, you can send a private message and I may be able to supply more details.
http://imsretrofit.com/pre-procedure-qualification/
#945
Racer
OK. Thanks for the clarification. Again, this shop is LN qualified and experienced. I regret posting, now.