While I'm not positive that my rod bearings are bad just yet (visual inspection has not been done), they are suspect and I was doing some pricing. I see there are the OEM's avail all over the place and then some that are .25mm oversized. So, the question is, when is there a need for the .25mm oversized set? I'm guessing when there is a fair ammount of ware, but what are the limits and what is the best way to measure for the limit?
I've never had to get this deep into a motor, so, sorry for the newb'ish questions.
An if anyone wants to chew on the main issue with me, the problem is as follows.
9a 2l 16v
Engine knock at idle after a few min of engine warming up. Sounds like it's coming from the #1 cyl area of the block using the screwdriver to the ear method.
When the engine is rev'd or is above idle, the knock is gone. Oil pressure is also suspect on the pump side, but alas, I need to check that as well. So, if anyone has any other ideas besides, spun rod bearing or crapped out oil pump, let me know.
Thanks in advance.