Originally Posted by
Maximo
dam rights it fuel related ..don't kid yourself otherwise.......worn crankpins and spun rod bushing
All guys have to do is start measuring their crankpin, they will see right away which brands of fuel protect, and which brands do not......I have been tracking worn cranks for 2 seasons now, there is a definite relationship to the fuel being used, its always the same two brands at the source of the trouble.....
I have not seen a single worn crankpin on either Bones or Werks end of story..these other fuels with less then 11% oil are a lost cause ..
You also have stated that dirt can get in through the front bearing, especially on Nova's. That and poor filter maintenance can wear crank pins also. I am not saying there arent plenty of bad fuels but I feel dirt is the major problem.
Rex