RE: I need help !!!
I would say over tightening the bolts will do it. Remember the engine goes through heat cycles. I tried the paper method and was never good at it. The way I do it is that I will loosen the engine bolts just enough that i can move the enging with some effort. I would roll it on the ground listening to the gears and feeling the gears. I would adjust to where I had no vibration and the gears had a little play. I have to say that it has worked for me. I fail to mention that I start by having the gears in full contact and back it off from there.