TM 5-6115-400-35
(2) Inspect cylinder heads and component
parts for wear or damage. Repair or
replace any worn or damaged parts. If
cylinder heads are to be replaced, parts
removed from old heads must be
thoroughly inspected before installing
them in the new heads. Make certain that
the cored water and air passages, and
drilled oil holes in the cylinder heads, are
clean.
d. Installation.
(1) Make certain that machined surfaces of
cylinder block and cylinder heads are
thoroughly clean.
New cylinder head
gaskets must be used when installing
cylinder heads.
(2) Make certain that the cylinder sleeve
standout is within the specific limits.
The specified standout of each cylinder
sleeve is .002 inch-.005 inch above top
flat surface of cylinder head and the
variation between the adjacent sleeves
must not exceed .003 inch.
(3) Install the four cylinder head guide studs
locations as shown.
(4) Position cylinder sleeve gaskets around
the fire walls of cylinder sleeves with side
marked "Cylinder Block Side" facing
down. Place cylinder head gaskets in
position with side marked "Top" facing up.
Figure 40. Cylinder head guide studs.
Note.
Install gaskets dry and make
place and tightened sufficiently so that the
certain head gaskets do not overlap
cylinder heads cannot move, remove the
cylinder sleeve gaskets.
four cylinder head guide studs, and install
(5) Position each cylinder head over guide
the remaining capscrews.
studs and onto cylinder block.
Aline
Caution
manifold mounting surfaces with a straight
Before cylinder head capscrews are
edge.
installed, make certain that there is
(6) Lubricate threads of all cylinder head
not an excessive amount of oil, or
capscrews. Refer to figure 41, and install
any other liquid, in the capscrew
the various size capscrews in the
holes in the cylinder block. Too
locations indicated. The hardened steel
much oil in any of these holes may
washers must be in place under the head
cause a hydrostatic lock and crack
of each capscrew. After all the capscrews
the cylinder block when the
(except at guide stud locations) are in
capscrew is tightened.
(7) Tighten cylinder head capscrews to the
specified torque following se-
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