When in Karachi I saw a shop trying to "overhaul" the 13-B genesis - they actually installed the apex seals into the rotors but also into busted and fully shiny rotor housings - the rotor housings nicasil was shot. I got to see it after they had packed it ham handedly - needless to say it was dead.
the owner tried to "sasta kaam kardo buss" and faced the heat because in the end he had to pay for the labor of the ill fated job.
If you replace the rotor housings and follow the rebuild manual carefully you can achieve guaranteed success.