counterbore or sleeve flanges eroding
from long use. It is important that the
cylinder sleeve standout from the top
surface of the cylinder block be held
between .002 inch-.005 inch. Variation of,
more than .003 inch between adjacent
sleeves must not be allowed. Failure to
retain specified cylinder sleeve standout
will invite premature cylinder head gasket
(b) A cylinder sleeve reseating tool is
available; the tool, is discussed in detail
(c) Listed in the steps below are the
assembly, installation, and operating
instructions for the Counterbore Tool (fig.
Top groove for Buna N (black) ring
Lower grooves for silicone (red) rings
Figure 106. Cylinder sleeve.
The letters "PRS," representing
PUSH ROD SIDE, are stamped on the
top flange. This marking must be
positioned on push rod side of
engine when sleeve is installed in
block. This will position the relieved
sections opposite the cylinder head
capscrew bosses in the block.
d. Cylinder Sleeve Reseating.
Figure 107. Cylinder sleeve reseating tool
(a) Cylinder sleeve reseating may become
necessary if the cylinder sleeves have
been allowed to move due to incorrectly
deteriorated head gaskets, or from block