We'll here's the quick rundown. About 3 years ago my 13b na was running fine. Then it blew a water seal, then bursted a coolant passage in the intermediate housing due to someone leaving pure water in it. So I found another 13b with a blown apex and disassembled it. Me being mr. freakin smart did not label which rotors and balancer's went together. So by now you understand my problem. I took some pics today hoping that someone will be able to tell me which go with which. Or is there a way to weigh them and equate which match? Or am I just plain screwed! Sorry I have to post a link, but photobucket was having a bad day. Thanks for any input.
jamie

http://photobucket.com/albums/b333/cjwalkeriii/rx-7/

 

First make sure you have the same series rotors together, the s5 rotors are machined in the tub area. If all four are the same series, they should have a letter stamped on them, just pair up rotors within 1 letter of each other.

Now if your rotors are all from the same series, your counter weights are the same. If not... someone else may know

 

So the couterweights aren't considered a set to the rotors... the are inter changeable? and I do have two dif letters ...D, C...