Sorry taping the holes is one of last things to do. Get your self some tide laundry detergent,white rags and warm water and clean the block.You should get all the dirt out of the cylinders.Clean until the white rags stay white.This is a good time to deburr the block.Have a air tank to blow the dirt and water out of the holes.When you get to this point give me a shout. Mark
first ting i do is run a tap through every hole then clean clean clean even if everything was hottanked. then i clean and orgainize my tools and parts then i measure everything and log it. thats how i start.
