TM 5-6115-400-35
(d) To double check the cylinder sleeve
Caution.
standout, insert sleeve in cylinder block,
Silicone rubber packing rings are
firmly
seating sleeve flange in the
counterbore. Hold a straight edge across
very tender, having less than half the
top of sleeve flange, and using a feeler
tensile strength of the black Buna N
gage as shown in figure 105, measure
packing rings. Use extreme care in
sleeve standout. Make certain straight
handling and installing them in order
edge is on cylinder sleeve flange and not
not to cut or shear them. Silicone
on firewall, refer to figure 106.
rings swell and expand after short
Caution
contact with petroleum products and
Do not attempt to measure cylinder
certain types of permanent anti-
sleeve standout in this manner with a
freeze. This causes them to drop out
shim installed in counterbore, rough
of their cylinder sleeve grooves and
edges or burrs on shim may give a
their installation in the cylinder block
false reading.
becomes impossible. Do not apply
(4) Two types of packing rings are used on each
lubricant to a silicone ring prior to
cylinder sleeve, silicone rubber, and Buna N
installation of the cylinder sleeve.
rubber. They are identified by their color.
(5) Thoroughly clean the packing ring grooves, in
Silicone packing rings are red; Buna N rings are
the cylinder sleeve. Stand sleeve on a clean
black.
work bench with packing ring end up. Refer to
ring in the groove indicated. Install a red
silicone packing ring in each of the other
grooves. The silicone rings must be installed
dry without lubrication of any kind.
(6) Brush a light coat of engine lubricating oil in
lower sleeve bore in cylinder block and install
cylinder sleeve.
Be extremely careful so
packing rings are not cut on sharp edges of bore
in block when install ring.
Caution
New cylinder sleeve packing rings
must be used at each installation of a
new or used sleeve. Do not use any
other lubricant except light engine
oil; doing so prevents proper
installation and operation.
(7) The cylinder sleeve is relieved in four places on
the upper pilot diameter directly under the top
flange. These relieved sections are to provide
additional clearance between the sleeve and the
1. Cylinder sleeve
cylinder head cap screw bosses in the block,
2. Feeler gouge
and eliminate any possibility of distortion to the
3. Straight edge
sleeve when cylinder head capscrews are
6115-400-35/105
tightened to their specified torque.
Figure 105. Measuring cylinder sleeve flange height
(standout) block.
140
