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TM 10-3930-643-34
GENERAL SUPPORT ENGINE, FUEL, EXHAUST AND COOLING MAINTENANCE.
13-3.
Crankcase and Cylinder Sleeves. (Sheet 6 of 11)
CLEANING/INSPECTION
18.
19.
20.
21.
22.
23.
24.
25.
Inspect lower cylinder sleeve pilot
bore for erosion.
If water leakage
is evident, replace crankcase.
Send
damaged
crankcase to
Depot
Maintenance.
Inspect for coolant or oil leaks in
crankcase.
If leaks are found,
notify Depot Maintenance.
Inspect sleeve counterbore for burrs
or fractures.
If repair is
indicated, notify Depot Maintenance.
Inspect twelve oil jets for dirt and
blockage.
Clean and open, if
necessary.
Inspect jets for cracks and chips.
Replace damaged jets.
Remove only if jets are damaged using
pilot driver.
Install new jets with pilot driver.
Check surface recess of jets.
Jets
must be recessed 1/8 inch below
surface.
Go to sheet 7
13-19
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