Not to be argumentative. My '92 300D had red stuff on the threads, not blue. I remember cleaning peices out of the hole threads with a pick.
I live by blue with motorcycles. Red I only use when called for in a manual because it's, like, not supposed to be easy to remove.
Somehow the new idler pulley bolt sheared off in a few minutes of driving, I nursed the car home, pulled the tensioner, and it either overnighted or cross threaded.
Somehow the new idler pulley bolt sheared off in a few minutes of driving, I nursed the car home, pulled the tensioner, and it either overnighted or cross threaded.
Stronger and easier than a Time-Sert in this situation, that bolt doesnt need to removed to many times in the cars life.
Edit: If that is in an oil passage you are best using a spiral fluted STI Heli-Coil tap. Lots of them online, these are just an example.