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ambient pressure reference line. Make sure
the inner bore of the pipe is clear.
(2) Put the drain pipe assembly in position
below the engine. Install the drain pipe to
the injection pump.
On aircraft equipped with an altitude
compensating fuel pump, install the ambient
pressure reference line to the fuel pump.
(3) Install the drain pipe to the fuel drain bracket
below the bottom left shock-mount.
(4) Push the rubber hose onto the fuel drain
outlet assembly. Install the hose clamp.
(5) Install the engine cowlings. Refer to Chapter 71-10
DA20-C1 AMM
Engine
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CHAPTER 72
ENGINE
Engine
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Engine
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TABLE OF CONTENTS
CHAPTER 72-00 ENGINE.......................................................................................................................1
1. General .............................................................................................................................1
2. Description ........................................................................................................................1
Engine
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CHAPTER 72-00
ENGINE
1. General
This Chapter tells you about the Teledyne Continental IO-240-B engine installed in the DA20-C1. It
does not give you the data to do maintenance on the engine. And it does not tell you about
maintenance in the repair shop.
Refer to the Teledyne Continental IO-240-B Maintenance Manual for data/instructions to do
maintenance on the engine. Also refer to the newest service bulletins before you do work on the
engine.
2. Description
Figure 1 shows a general view of the engine. The engine has the usual parts. The crankcase
makes the body of the engine. It supports the crankshaft, camshaft, different gears, accessories,
cylinders and support brackets.
The steel crankshaft has three machined journals. The three main journals attach to the bearing
saddles in the crankcase. Machined rod journals attach to the four connecting rod assemblies.
An accessory case closes the rear of the crankcase. The accessory case has drive pads for the
starter and two magnetos. Refer to Chapter 80-00 for data about the starter. Refer to Chapter 74-
00 for data about the ignition system.
Four cylinders attach to the crankcase. Number 1 cylinder is at the rear on the right. Refer to
Figure 1 for the cylinder numbering.
An oil sump attaches to the bottom of the crankcase. The oil sump has a filler tube behind the rear
right cylinder. A special oil distribution block attaches to the accessory case. The block has the oil
filter and the oil system sensors. Refer to Chapter 79-00 for data about the oil distribution block
and its components.
The induction system attaches to the top of the crankcase. Air enters through the air metering
valve at the front. A plenum assembly supplies the air to four inlet pipes which carry the air to the
cylinders.
A fuel pump attaches to the front of the crankcase. The fuel metering unit and fuel manifold valve
are on top of the crankcase. Refer to the Teledyne Continental IO-240-B Maintenance Manual for
data on the fuel system components.
Engine
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Figure 1: Engine
DA20-C1 AMM
Engine Fuel And Control
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Rev. 0 73-TITLE Page 1
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CHAPTER 73
ENGINE FUEL AND CONTROL
Engine Fuel And Control
DA20-C1 AMM
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TABLE OF CONTENTS
CHAPTER 73-00 ENGINE FUEL AND CONTROL...................................................................................1
1. General .............................................................................................................................1
2. Description ........................................................................................................................1
TROUBLE-SHOOTING...............................................................................................................101
1. General .........................................................................................................................101
　
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