Quote:
Originally Posted by Joester
Have you ever done an oil analysis?
I'd be curious to see what an oil analysis tells you vs what you actually see once you get the bearings out.
If the oil analysis accurately predicts what you end up seeing on the bearings, that may give hope to fellow N55 owners that they can just periodically send in oil samples to see if their bearings are failing and catch/fix it early.
I think your plan to use OE parts and not plastigauge it is acceptable. It's not like they're plastigauging every engine in the factory either. If you used aftermarket stuff thats obviously a different story.
Good luck! You say its relatively uncomplicated which I suppose it is, but that's still a bigger task than 99% of this forum would ever try. Take lots of pics!
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No oil analysis done during my ownership so we won't have that data point.
Quote:
Originally Posted by 9krpmrx8
This. But hey it's your money and your engine to risk so do it to it.
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Money...yes. But I'm not sure I follow you when you say "your engine to risk." This is a very common procedure for the S65 crowd with some engines already having two or three sets of bearings replaced. I have also seen this done on a number of N54s...one you should be able to find on a pretty popular site without too much searching (project car). I suppose a careless approach could result in damage (i.e. incorrect torque applied or incorrect color combo installed) but it really isn't that difficult a procedure.