986 Forum - The Community for Porsche Boxster & Cayman Owners - View Single Post - Is there truly no way to tell that it’s time to replace the IMSB?

thstone · 08-09-2019, 03:54 PM

Correct.

There is NO WAY TO KNOW.

Its a lot like the Heisenberg Principle - if you actually look at (inspect) the IMSB then you might as well replace it anyway.

Cutting the filter open or oil analysis will provide information about the entire engine, not exclusively the IMSB.

08-09-2019, 03:54 PM	#5
thstone Certified Boxster Addict Join Date: Nov 2010 Location: Los Angeles Posts: 7,669	Correct. There is NO WAY TO KNOW. Its a lot like the Heisenberg Principle - if you actually look at (inspect) the IMSB then you might as well replace it anyway. Cutting the filter open or oil analysis will provide information about the entire engine, not exclusively the IMSB. __________________ 1999 996 C2 - sold - bought back - sold for more 1997 Spec Boxster BSR #254 1979 911 SC POC Licensed DE/TT Instructor