61, 65 and 70 Series Vertical Shaft Engines
116
NOTE: On the X65 series of engines, the cylinder is
manufactured using a special machining
process. This process does not leave a
cross hatch that is normally seen in most
engines. As the engine breaks in, the cylin-
der will develop a smooth, dull finish.
NOTE: The cylinder may have some scratches. As
long as the scratches cannot be felt with a
finger nail, they are acceptable. See Figure
10.19.
NOTE: Do not de-glaze an X65 series engine cylin-
der. If the cylinder needs to be de-glazed,
replace the cylinder block.
Bearings
There are two bearings to inspect; a plain bearing in the
sump and a ball bearing in the cylinder block. To inspect
the bearings:
1. Remove the sump and cylinder block oil seals using
a seal puller. See Figure 10.20.
2. Inspect the bearing surface for galling, scratches,
metal transfer or any other signs of damage.
3. Measure the inside diameter of the bearings and
compare to the chart at the end of this chapter. See
Figure 10.21.
Figure 10.20
Sump oil seal
Seal puller
Figure 10.21
Measure the
bearing ID
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