450 c engine problem

[Dave Buchanan]

I have a 450c crawler loader engine got antifreeze in oil , pin hole in liner
I am worried about the block pitted bad on top o ring going to leak to middle o ring the middle and bottom grove are in good shape . Will this be ok ? [/list]

[jtrichard]

when you get it back together you need to run anti cavitation treatment in the coolant it stops the pitting