LYCOMING OPERATOR’S MANUAL
SECTION 2
IO-320 SERIES
SPECIFICATIONS
SPECIFICATIONS (CONT.)
IO-320-B1E, -D1C
FAA Type Certificate ................................................................................................................................. 1E12
Rated horsepower...........................................................................................................................................160
Rated speed, RPM........................................................................................................................................2700
Bore, inches.................................................................................................................................................5.125
Stroke, inches..............................................................................................................................................4.875
Displacement, cubic inches.........................................................................................................................319.8
Compression ratio ....................................................................................................................................... 8.5:1
Firing order ............................................................................................................................................. 1-3-2-4
Spark occurs, degrees BTC..............................................................................................................................25
Valve rocker clearance (hydraulic tappets collapsed) ......................................................................... .028-.080
Propeller drive ratio ....................................................................................................................................... 1:1
Propeller drive rotation (viewed from rear) ........................................................................................Clockwise
*Accessory Drive
Drive Ratio
**Direction of Rotation
Starter
13.556:1
Counterclockwise
Starter
16.556:1
Counterclockwise
Generator
1.910:1
Clockwise
Generator
2.500:1
Clockwise
Alternator
3.250:1
Clockwise
Tachometer
0.500:1
Clockwise
Magneto
1.000:1
Clockwise
Vacuum Pump
1.300:1
Counterclockwise
Prop. Gov. AN20010
Mounted on Accy. Hsg.
0.866:1
Clockwise
Mounted on Crankcase
0.895:1
Clockwise
Fuel Pump AN20003
1.000:1
Counterclockwise
Dual Drives
* - When applicable.
** - Viewed facing drive pad.
NOTE that LIO-320 series engines will have opposite rotation to the above.
DETAIL WEIGHTS
1. Engine, Standard, Dry Weight.
Includes fuel injector, magnetos, spark plugs, ignition harness, intercylinder baffles, tachometer drive,
starter and generator (alternator) drive, starter and generator (alternator) with mounting bracket.
2-3
Содержание AIO-320
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