I have a case SC 1952 the block surface was pretty beat up the previous owner. I also have two cracks in the block that extended through the top of the block and down the full length of the stiffeners between the cylinders.Because welding cast is not an option in this area I have repaired them the best I could by installing a piece of 0.90 304 stainless double this is the thickest and strongest material I could find and install in the limited space that I had,and still have room for the heads of a grade 8 hex head bolts to clear the sleeves. However There was No room on the other side to install a nut so I tapped the attachment holes for the repair in the block casting stiffeners and installed the repair straps. My question now is how much can I safely remove from the surface of the block? I measured the height of the pistons to the top surface of the block at 0.29. I intend to seal the repair and the crack from the inside of the block with 8802-B2 aircraft tank sealant it has a temperature range from -65°F (-54°C) to 250°F (121°C), I have seen this stuff on 30 year old aircraft still looking like the day it was installed. Thanks for any help or comments
Byron
Byron