so i have a bunch of things out the car, replacing the oil pan and i figured well i might as well check the crank shaft end play. however i don't have my service manual with me, and i keep getting conflicting results on the internet while searching. some sites say the tolerance is between .002" - .007" with a maximum of 0.0098" others just say between .002"-.012"
the reading i got is .009" maybe a tad bit under. is the motor hooped or is that reading still ok, on its way out? what are you thoughts? the only reason why i am inspecting this, is because i am trouble shooting a noise. it sounds like a rotational noise, but it is almost a knock as well. when you depress the clutch, it totally goes away. the noise is only there at idle, and only randomly. if you accelerate the noise quickly goes away. its coming from the tranny side of the motor.
i suspected that if my crank shaft end play was bad enough it could be the crank pushing the flywheel/clutch into contact with the pressure plate. if that makes sense, and making noise. now i am not so sure. .009" is not much movement.
no other sign or symptoms as to what might be causing this. please feel free to discuss, and throw around theories.
also if my thrust bearings are on the way out, in an effort to extend the motors life can i just simply replace them? i have seen articles online of people doing it, and having good results, but no articles on how to do it. whether in the car or not.