TM 1-1500-204-23-1
Table 7-2. Engine Conditioning Table
Complete
conditioning
When
Personnel
steps
Procedure
performed
responsible
Step 1. Ignition System
Time all phases of ignition. This in-
Complete
Maintenance
Timing.
cludes breaker point-to-magneto
Conditioning
timing, magneto-to-engine timing,
and, distributor finger-to-engine
timing.
Step 2 Compression
Test cylinder compression.
Complete
Maintenance
Test
Conditioning
Step 3. Valve Adjust-
Check valves and adjust clearances
Complete
Maintenance
ment
if necessary. Visually inspect valve
Conditioning
mechanism.
Step 4. Ignition Harness
Check Ignition harness for high
Complete
Maintenance
Check
voltage leakage.
Conditioning
Step 5. Spark Plug
Install new or reconditioned set of
Complete
Maintenance
Installation
spark plugs.
Conditioning
Step 6. Check for
Pull propeller through to deter-
Complete
Maintenance
Hydraulic Lock
mine whether combustion cham-
Conditioning
bers are clear.
Cockpit Check
Air Crew
Daily Check
Air Crew
Step 7. Blowby Check
While performing step 6, listen for
Complete
Maintenance
an extended hissing sound from
Conditioning
exhaust stack or stacks.
Cockpit Check
Air Crew
Daily Check
Air Crew
Step 8. Engine Start
Start engine.
Complete
Maintenance
Conditioning
Cockpit Check
Air Crew
Daily Check
Air Crew
7-31
