Signs your bolts need to be tightened
I got my engine back from getting the snapped bolt removed and right away I noticed a big diff on how it runs. It's much smoother.
1. If you can feel the engine vibrate through you seat alot more then you could before.
2. It's louder
3. Doesn't run as smooth.
If you get any of these then It's time to check your nuts.(no pun intended)