Posted: Sat Jun 23, 2012 9:54 am
Dave
On the sealant what happens is any excess after filling the gap comes into the head. I leave it there as it clears itself. It is soft and will do no damage as it breaks away/burns. Interestingly any liquid gasket in the gap remains I assume that with the area filled it becomes a location in which there is little flame activity. I have had heads apart after a few seasons and the gasket is still there.
Picture shows cases punched. I now use a chisel to raise a sharp edge like the barb on a hook. Sharp edge aligned so that it points to the piston. It seems to stop the gaskets blowing out. I also do it along the side on the thin bit by the transfers as I have had that show signs of pushing out.
Makes cleaning teh gasket off a bit of a pain but I would rather that than have a costly engine build
On the sealant what happens is any excess after filling the gap comes into the head. I leave it there as it clears itself. It is soft and will do no damage as it breaks away/burns. Interestingly any liquid gasket in the gap remains I assume that with the area filled it becomes a location in which there is little flame activity. I have had heads apart after a few seasons and the gasket is still there.
Picture shows cases punched. I now use a chisel to raise a sharp edge like the barb on a hook. Sharp edge aligned so that it points to the piston. It seems to stop the gaskets blowing out. I also do it along the side on the thin bit by the transfers as I have had that show signs of pushing out.
Makes cleaning teh gasket off a bit of a pain but I would rather that than have a costly engine build