....well, what happens if a gigantic asteroid hits our planet and we all die in a flash tomorrow?
Come on, man!
By that reasoning, we'd never do anything.
Why fix the IMS when any number of other things could grenade the engine?
Simple---Because we KNOW that can grenade the engine and we have the ability to prevent that from happening for sure. At least we KNOW that problem is solved.
Don't suffer paralysis by analysis.
FWIW, when I bought my 986 about three years ago, I immediately flat bedded her to Flat 6 Innovations and had them install the "solution", R&R the RMS, Air/oil separator, water pump, all three cam chain tensioners, all the spark plugs, clutch, and flywheel.
Cheap?
No.
Priceless.
We've driven her all over the country with no fear and have been enjoying life.
EVERY car out there has some sort of flaw that affects a certain percentage of the build. After 20 years we all know what can grenade a 986. You just budget the preventative fixes into the purchase price of the car. Deal with it. It is what it is.
Just add $8,000 to the purchase price of any 986 for this work. Simple.
You can't expect to buy one of these for $5,000 on Auto Trader an expect a trouble free life.
That's what Civics are for.
I over paid for a solid car with full history and then invested even more money to make sure she would not leave us on the side of the road in Canyonlands.