Guys,

Can anyone in this group determine the rotor alloy?  It is ductile cast iron.  I have two rotors that are '90 high compression rotors that have been damaged by broken apex seals.  Ed says that they are very scarce and expensive.  I would like to know if anyone has ever welded up the apex groove and then machined the groove to 2mm and used the rotors again.  What would be the downside of buffing out grooves on the face of a rotor?  This is for an auto application NOT aircraft application.  Bottom line question: Can rotors be repaired?  Piston replacement is cheap....not so with rotors.   Your input, please.

 

Jim Brewer