ok so im doing a rebuild and building my s5 na to turbo engine. i disassembled the engine about ayear ago and am in the process of putting it back together. one problem i forgot to mark which rotor was the front and which one was the rear... i have looked alll over the rotors and i cant find any markings or anything on them to help indicate which one is the front or which oneis the rear. am i fucked now or does anyone have any advice, tips, pointers etc, thanks in advance
alex

 

It doesn't matter. You should see a letter stamped on the rotor, A-D. As long as those letters match or at least are one letter apart from each other you can put whichever rotor you want in there.

 

front and rear only matters for 12a rotors cause they are LDR ( leading deep recess )

13b rotors are MDR ( middle deep recess )
and so are symmetric,, and can be used either position

 

Thank you for the clarification.

 

oh thank god. well i think madatrix rebuild video said labeling the front and rear rotor is a " very critical step" thanks for the clerification.

 

labeling them is more important if you are reusing parts

 

it is good practice to be able to put all the pieces back EXACTLY where they came from.

 

oh i see well im not reusing any of the seals just the rotors so i should be fine thanks for the help

 

ahh i see well im definetly going to get into that practice next time thanks