when installing the crankshaft pulley, what parts do i have to reuse? do i have to put my lower cover back on? or can i just put the crankshaft pulley on? also.. if i dont use the lower cover.. do i have to use the cirular metal piece that goes behind the cover? TIA

 

what? take the old one off then bolt the new one on....

 

if you dont use the little circular metal peice on, your timing belt will "Walk" off of the cam gears. not good at all. you dont have to use the plastic cover but damn,.... why would you NOT want to?

you'd be fucked the first gravel road you went on!

 

seriously, everything you take off, put it back on. Not doing so would be retarded. If it's damaged, replace it, but definitely do not go without any piece that was already on there in the first place.

 

put the cover back on there unless you've already stuggled to put the timing belt
on and realize you forgot to do it

 

Use that cover. Its there for a reason. I know from experience.