Yes the pully Will be ESS. This is the first of the ESS Casting companies products used by Victa",They supplied right through into the sheerline,and possibly beyond with pullies,carbies and a few other parts.
Anyways...You DO NOT wannt to pull the conrod from the crank. The aim is to get the piston out of the barrel,no more no less,using any means possible.
Destroy the piston,drill it out,press it out,bore it or die grind it,Acid...Heat the barrel to loosen and shock the rust(just not to hot) And let it cool naturally,as its Cast Iron and may crack or distort. Whatever means you can. it will come out and its the least expensive part to sacrifice and easily replaced...
