TM 10-3950-672-24-2
Injector Protrusion
Injector protrusion can affect power from the engine. In
addition to a single sealing washer (A) on the injector,
the thickness (B) of the head gasket controls injector
protrusion.
Oversized service head gaskets are used when the
head surface on the block has been refaced. The head
gasket is marked to indicate the thickness. One notch
means the gasket is standard for use with blocks that
have not been refaced.
Two notches identify that the gasket is for use with
blocks that have been refaced 0.15mm [0.006 in.]. The
block should be marked with one X to indicate the
surface has been refaced 0.15mm [0.006 in.].
Three notches indicate the gasket is for use with a block
that has been refaced 0.50mm [0.20 in.]. Two XX's
identify a block has been refaced 0.O5Omm [0.020 in.].
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