ok so two weekends ago i had trouble starting my m60b but i figured out it was a dead battery .... but in the process i left the linkage loose on the bottom two carbs and since it ran fine off the dock i didnt realize it was like that until it was too late
compression was 105 0 105 when i got it home so i pulled the head and this is what i found :
on this one you can really see it
my question is about the groove in the cylinder wall i dont think thats sposed to be there or is it ? looks like the wrist pin broke freee of the retainer clip and wore a deep groove in it if so i know the power heads toast but if it IS sposed to be there what is it for?
this is the middle cylinder btw if that matters
compression was 105 0 105 when i got it home so i pulled the head and this is what i found :

on this one you can really see it

my question is about the groove in the cylinder wall i dont think thats sposed to be there or is it ? looks like the wrist pin broke freee of the retainer clip and wore a deep groove in it if so i know the power heads toast but if it IS sposed to be there what is it for?
this is the middle cylinder btw if that matters