Everyone else, Replacing the IMS bearing is a good idea as is doing all the other regular maintenance. Replacing the IMSB should never be thought of as making your M96 engine 'bullet proof'. M96 (and any other) engines can fail for a lot of reasons. I don't see anything pointing to IMS failure on this particular engine. Might be, might not be. The '01 engine I tore down was full of metal and seems to have failed (initially) from a broken rod bolt. The original IMS bearing looked good at 124k miles.
I have learned a lot from Tom and agree with his assessment in the post above, except that I don't see failure in most street cars as inevitable as his racing engines.
911 Monty..........Bringing up my 1st post brings back memories..........I have no reason to lie. After 2 weeks of ownership I has a very respected independent shop do the LN IMS and a complete 30k service. I then drove the car over 4 years {avg 5k miles a year} without one single problem. It was my weekend fun car and hobby. I only had to change the oil every 5k and change the tires twice.
To everyone..........I never stated the IMS was the cause of the engine grenading. I only mentioned it to let everyone know that it wasn't the original .........A lot of times the damage to the IMS IS SECONDARY. THERE ARE ALOT OF THINGS THAT DESTRUCT IN THESE MOTORS CAUSING DAMAGE TO OTHER COMPONENTS. This is happening more and more to these motors according to a very respected engine builder here in the Atlanta area. I sold the car as is because I don't have the space, time, or patience to rebuilt the motor. I also lost my faith in Porsche...........I loved this car and had over 4 years of fun with it for that I am grateful, things could of been worse and in the road of LIFE this was only a small pothole.......Take Care.
911 Monty..........Bringing up my 1st post brings back memories..........I have no reason to lie. After 2 weeks of ownership I has a very respected independent shop do the LN IMS and a complete 30k service. I then drove the car over 4 years {avg 5k miles a year} without one single problem. It was my weekend fun car and hobby. I only had to change the oil every 5k and change the tires twice.
To everyone..........I never stated the IMS was the cause of the engine grenading. I only mentioned it to let everyone know that it wasn't the original .........A lot of times the damage to the IMS IS SECONDARY. THERE ARE ALOT OF THINGS THAT DESTRUCT IN THESE MOTORS CAUSING DAMAGE TO OTHER COMPONENTS. This is happening more and more to these motors according to a very respected engine builder here in the Atlanta area. I sold the car as is because I don't have the space, time, or patience to rebuilt the motor. I also lost my faith in Porsche...........I loved this car and had over 4 years of fun with it for that I am grateful, things could of been worse and in the road of LIFE this was only a small pothole.......Take Care.
Hey Nobrakes, great post. Again, I’m really sorry for your loss. This is my 7th Porsche. If my 986 SE engine goes, I’ll sell the roller for whatever I can and move on. No way I’m replacing the motor in the 986. Maybe an Aston Martin, maybe a 993, maybe a Lotus Evora. Who knows. Life’s too short and there are a lot of cars out there to experience.
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Rgds, Fred
#317 550 Spyder Anniversary Edition 2004 Boxster S, 3.8L Flat Six Innovations engine, PSS9s, etc, etc . . . The contents of my posts are for entertainment only. As confirmed by my many motor sports fails, I am not qualified to give product endorsements or mechanical advice
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