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50-Hour Engine Inspection Checklist for IO-390-D Series Engines (Cont.)
Inspection Item
Induction System
Complete the Induction System
Inspection.
Engine Cylinders
For possible causes and corrections, refer to the section "Fault Isolation Guide" in Chapter 12-30.
Examine the rocker box covers for
oil leaks. Identify and correct the
cause of oil leaks. For possible
causes and corrections, refer to the
section "Fault Isolation Guide" in
Chapter 12-30.
Alternator
Make sure the alternator belt
support brackets and mountings
are tight.
Exhaust System
Examine the exhaust system.
Operational Test
Complete an Operational Ground
Check in Chapter 72-00.
05-20
Page 22
IO-390-D Series Engine Maintenance Manual
IO-390-D Series Engine Maintenance Manual
Comments
Refer to the "Induction
System Inspection"
procedure in Chapter 72-80.
Cyl. 1
Tighten all loose hardware
per torque values in the
Standard Torque Tables in
the latest revision of the
Service Table of Limits -
SSP-1776.
Refer to the "Exhaust
System Inspection"
procedure in Chapter 78-00.
© 2020 Avco Corporation. All Rights Reserved
Results/Notes
Cyl. 2
Cyl. 3
Done
Cyl. 4
March 2020
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