Lycoming IO-390-D Series Maintenance Manual page 137

IO-390-D Series Engine Maintenance Manual
IO-390-D Series Engine Maintenance Manual
Step
"Crankcase Disassembly" procedure in
Step 23
Chapter 72-20
Separate the
crankcase
halves
(Figure 23).
"Tappet, Main Bearing and O-Ring
Step 24
Removal" in Chapter 72-20
Remove the
tappets,
main
bearings,
and O-rings
(Figure 24).
Tappets, Main Bearings and O-Rings
"Propeller Governor Drive
Step 25
Removal/Disassembly" in Chapter 72-
Remove the
20
propeller
governor
drive
(Figure 25).
Propeller Governor Drive
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March 2020
Table 1 (Cont.)
Sequence of Engine Disassembly Procedures
Reference
Figure 22
Crankcase Halves
Figure 23
Figure 24
Step
"Oil Plug Removal" procedure in
Step 26
Chapter 72-20
Remove the
oil plugs
(Figure 26).
"Crankshaft Idler Gear Shaft Removal"
Step 27
procedure in Chapter 72-20
Remove the
crankshaft
idler gear
shafts
(Figure 27).
Crankshaft Idler Gear Shafts
"Piston Cooling Nozzle Removal" in
Step 30
Chapter 72-20
Remove the
piston
cooling
nozzles
(Figure 30).
Piston Cooling Nozzles
"Crankshaft Disassembly" in Chapter
Step 28
72-20
Disassembl
e the
crankshaft
(Figure 28).
Crankshaft Disassembled
Reference
Figure 28
Oil Plugs
Figure 26
Figure 30
Figure 28
72-05
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