TM 5-3895-356-14&P
number one as a method of preserving the bore/ piston
Examine the upper running face of the block. See Fig
relationship See Fig 109. All used pistons must be
199. Circular wear patterns or photographing that cannot
returned to their respective bores upon reassembly.
be felt with the fingernail are normal.
Figure 199.
Figure 197.
Inspecting cylinder block
Marking number one piston
Remove the cylinder block (40) by lifting It straight up off
the piston assemblies See Fig. 198.
Examine the block assembly (37) for excessive wear or
damage
Figure 198.
Figure 200.
Removing cylinder block.
Cylinder block rework specifications
Cylinder bores that exhibit only slight burnishing of the
If the block is acceptable for reuse in all other respects,
bronze liners are acceptable for reuse If the bores
several passes of the block over 500 grit emery paper on
exhibit galling or any other Irregularity In the running
a lap table, is recommended to put the block face in a
surface that can be felt, the cylinder block must be
like-new condition. If circular wear patterns can be felt
discarded. If there is evidence that the bronze liners
with the fingernail, grind the running face as necessary to
have begun to pull out of the steel block, the block must
remove the wear pattern keeping the face parallel to the
also be discarded
original face Lap the reworked face on 500 grit emery as.
119
