How do you change the apex seals on an rx7 13b?

very very big job!!!!! dont recommend for the novice or driveway mechanic. if you blew your apex seals then you more than likely ruined your intermediate housing and more than likely blew out all the other seals. you will need new housings apex seals, corner seals, side seals etc. to many to name. look into a new engine, much easier.