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Shop Talk: Cylinder Liner Protrusion Installation Tips
Liner protrusion is the measurement the cylinder liner extends above the surface of the engine block. It is supposed to stick above the surface of the block and act essentially as a cushion on the cylinder head gasket. Once torqued into place the cylinder head crushes the gasket evenly and to the correct OEM specifications. In essence the cylinder liner is a guide to make sure the cylinder head and block are in proper alignment. Measurements are taken using a bridge micrometer and a dial indicator. ... Read more
