OK I got my R broke down and i dont know which side the arrow on the piston is supposed to point to. Does it point to the intake or exhaust side? I know this is a stupid question but i dont wanna put it together backward.

 

arrow always go to exhaust side

 

The half round cutaway in the piston skirt goes toward the intake. Just incase you can't see the arrow sometime.

 

Also the windows cut into the piston always goes to the intake side (if your piston has one)

 

The R is cutaway. You've been working with too many banshees DaBeechMan[img]i/expressions/face-icon-small-wink.gif[/img][img]i/expressions/face-icon-small-happy.gif[/img].