IMS tell tale

[JFP in PA]

Originally Posted by Gelbster

In theory (covered in another JFP thread) you can use Durametric deviation readings (bouncing line) to observe the effect of a worn/wobbling IMSB. How much warning you get with this I don't know. But it helps make the case for using your Durametric every time you change oil or even more frequently to develop a history and familiarity with this tool. And getting a filter slitter if you have a spin-on.

We have only seen a very small handful of cars do this, and quite plainly it was a moot point anyway, as further examination showed the filter and sump full of ferrous grit, eliminating the chance of a retrofit without a full rebuild.

[Jamesp]

Treat this like a "lifetime" timing belt. Change it. Use anything from a steel deep groove ball bearing you source yourself over the internet for a few bucks, which you'll need to service again in a few years, to a custom made plain bearing for a few grand you'll never have to change or think about again. Or you can just leave the bearing in place and bet it won't bother you. You'll be right 92% of the time for a single row, and 99% of the time for a double row if you decide not to worry about it.