Sometimes I get carried away..
Look at this tiny piece of alloy that was left behind when the bearing feed holes were drilled.
I really want to grind it off but I don't really understand what happens to the gas flow between the right hand main bearing and the crank seal.
It does look tempting though!!!…..maybe if I remove it, oil flow to the bearing will be improved…or maybe the flow needs to be disrupted here.
This sort of thing keeps me awake at night…..I should probably put the grinder away and put the engine together!!!
Have a look at were that blob of epoxy had been. I'm surprised it passéd QC, (assuming this happened in the foundry)