Textron Lycoming O-540 Series - Page 19

TEXTRON
LYCOMING
OPERATOR'S
MANUAL
0-540
&
10-540
SERIES
SECTION
2
SPECIFICATIONS
0-540
SERIES
-A*
-B
-E,-G-,H
FAA
Type
Certificate
295
295
295
Rated
horsepower
250
235
260
Rated
speed
RPM
2575
2575
2700
Bore,
inches
5.125
5.125
5.125
Stroke,
inches
4.375
4.375
4.375
Displacement
cubic
inches
541.5
541.5
541.5
Compression
ratio
8.5:1
7.2:1
8.5:1
Firing
order
1-4-5-2-3-6
1-4-5-2-3-6
1-4-5-2-3-6
Spark
occurs
degrees
BTC
250
25
25
Valve
rocker
clearance
(hydraulic
tappets
collapsed)
.028-.080
.028-.080
.028-.080
Prop.
drive
ratio
1:1
1:1
1:1
Prop.
driven
rotation
Clockwise
Clockwise
Clockwise
0-540
SERIES
-J,-L
-F
FAA
Type
Certificate
295
295
Rated
horsepower
235
235
Rated
speed
RPM
2400
2800
Bore,
inches
5.125
5.125
Stroke,
inches
4.375
4.375
Displacement
cubic
inches
541.5
541.5
Compression
ratio
8.5:1
8.5:1
Firing
order
1-4-5-2-3-6
1-4-5-2-3-6
Spark
occurs
degrees
BTC
23
250
Valve rocker
clearance
(hydraulic
tappets
collapsed)
.028-.080
.028-.080
Prop.
drive
ratio
1:1
1:1
Prop.
driven
rotation
Clockwise
Clockwise
*0-540-A
Series
alternate
hp/rpm
rating:
235/2400
(except
-A3D5).
2-1