As an ex technician for Sears, please allow me to tell you DO NOT ATTEMPT TO TIME YOUR MACHINE!!! This needs to be done by a qualified and trained technician and any attempt to do this may end up in a NON REPAIRABLE unit! PLEASE take it to the nearest SEARS SERVICE CENTER or Sears Store for repair. THANKS!
Even if you do not accept my answer, PLEASE follow my advice or you could end up with a nice boat anchor!