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IO-390-D Series Engine Maintenance Manual
IO-390-D Series Engine Maintenance Manual
Step
Chapters 12-10, 72-25, 72-50, and 73-
Step 19
10 in this manual and airframe
Install the
manufacturer's instructions
accessory
housing,
fuel pump,
oil filter
base, oil
cooler
bypass
valve, oil
filter and
propeller
governor
(Figure 18)
"Oil Sump Installation" in Chapter 72-
Step 20
50
Install the
oil sump on
the
crankcase
(Figure 19)
"Piston Installation" procedure in
Step 21
Chapter 72-30
If removed
install the
piston in
each engine
cylinder
(Figure 20)
© 2020 Avco Corporation. All Rights Reserved
March 2020
Table 2 (Cont.)
Sequence of Engine Assembly Procedures
Reference
Figure 18
Accessory Housing
Figure 19
Oil Sump
Figure 20
Piston
Step
"Cylinder Installation" section in
Step 22
Chapter 72-30
Install all
four engine
cylinders on
the
crankcase
(Figure 21)
"Starter Ring Gear Support Installation"
Step 23
procedure in Chapter 72-70
Install the
starter ring
gear support
on the
engine
(Figure 22)
Step 24
"Intake Pipe Installation" procedure in
Install the
Chapter 72-80
intake
pipes, each
to the
correspond-
ing cylinder
(Figure 23).
Reference
Figure 21
Engine Cylinders
Figure 22
Starter Ring Gear
Figure 23
Intake Pipes
72-10
Page 119
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