IO-390-D Series Engine Maintenance Manual
72-10
© 2020 Avco Corporation. All Rights Reserved
Page 118
March 2020
IO-390-D Series Engine Maintenance Manual
Table 2 (Cont.)
Sequence of Engine Assembly Procedures
Step
Reference
Step
Reference
Step 13
“Camshaft Assembly and Installation”
procedure in Chapter 72-20
Step 16
“Crankshaft Oil Seal Installation”
procedure in Chapter 72-20
Assemble
and install
the
camshaft in
the
crankcase
(Figure 12).
Install the
crankshaft
oil seal in
the
crankcase
(Figure 15)
Figure 12
Camshaft
Figure 15
Split Oil Seal and Solid-Ring Oil Seal
Step 14
“Crankshaft Installation” procedure in
Chapter 72-20
Step 17
“Crankshaft Idler Gear Installation”
procedure in Chapter 72-20
Install the
crankshaft
in the
crankcase
(Figure 13).
Install the
crankshaft
idler gears
(Figure 16).
Figure 13
Crankshaft
Figure 16
Crankshaft Idler Gears
Step 15
Assemble
the
crankcase
halves
(Figure 14)
“Crankcase Assembly” procedure in
Chapter 72-20
Step 18
Install the
oil pump
and the fuel
pump
plunger on
the
accessory
housing
(Figure 17).
Procedures in Chapter 72-25
Figure 14
Crankcase Halves
Figure 17
Oil Pump
