Yes from memory the crankshaft pulley bolt is 22mm on EJ22.
Yes the EA82 is a non-interference engine so no the valves won't hit the pistons.
Subafury wrote: on a side note im a little worried about the tightness of the crank pulley bolt- how do i know if it is working its way loose? more belt slippage?
Which belts are slipping, your timing belts or the drive belts on the front? There should be a certain about of deviation in the drive belts if they are at the right tension (they give a belt deflection at a certain effort in nM normally but I just go to about 1cm movement on the longest straight length with a good finger push), and adjusting the tensioning mechanism (tensioner pulley or A/C mount usually). It is recommended you re-test/tension the belts after a few hundred km.
