Engine Description
Teledyne Continental Motors, Inc.
TM
2-34
IOF-550 Permold Series Engine Maintenance Manual
1 April 2007
Table 2-2.
IOF-550 C Specifications & Operating Limits
CYLINDER HEAD TEMPERATURE
Normal Operational Temperature (using bayonet
thermocouple) (cruise)
420
°
F 216
°
C
Maximum Allowable Operational Temperature
(using bayonet thermocouple)
460
°
F 238
°
C
Minimum Take-off Temperature (using bayonet
thermocouple)
240
°
F 116
°
C
*All temperatures are measured with bayonet thermocouples
EXHAUST
Exhaust System back-pressure, maximum, measured at port, inches Hg (kPa)
2.5 (8.5)
EGT Thermocouple Probe, min. location distance from port, in (mm)
2.00/2.50 (50.8/63.5)
OIL
Oil Pressure – Normal Operation* @ 75
°
F to 240
°
F (24 to 116
°
C)
30 to 60 psig
Maximum Allowable Oil Pressure (cold oil)*
100 psig
Minimum Oil Pressure @ Idle (700 RPM)*
10 psig at or below 200°F
Maximum Allowable Oil Temperature*
240
°
F 116
°
C
Minimum Take-off Oil Temperature*
100
°
F 38
°
C
Cruise Flight Operation Oil Temperature
170 to 220
°
F 77
to
104
°
C
Oil Sump Capacity
12.0 Quarts
Useable Oil - 16
°
Nose Up
(12 quart fill)
6.9 Quarts
Useable Oil - 10
°
Nose Down
(12 quart fill)
6.3 Quarts
Recommended Oil Grade, SAE – above 40
°
F
50 or Multi Viscosity
Recommended Oil Grade, SAE – below 40
°
F
30 or Multi Viscosity
Oil Grade, TCM Specification
MHS-24
CAUTION: Oil must be aviation oil conforming to MHS-24.
*Oil pressure and temperature are measured at the oil cooler adapter.
BRAKE SPECIFIC OIL CONSUMPTION (BSOC)
Maximum BSOC = .006 lb/HP/HR x (%Power/100)
ENGINE PHYSICAL SPECIFICATIONS
Weight, Dry, lb. (kg) +/- 2.5%
Minimum runnable engine
Detailed weights by Specification Number
453.2 (205.6)
Refer to TCM’s Detailed Model Specifications
Overall Dimensions, inches (mm)
Height
Width
Length
19.78
33.56
42.47
(502)
(852)
(1079)
Center of Gravity, inches (mm)
Forward of rear accessory case
Below crankshaft centerline
Beside crankshaft centerline toward 1-3-5 side
12.23
0.50
0.40
(311)
(13)
(10)
Moment of Inertia, standard accessory package,
in·lb·sec
2
(mm·kg·sec
2
)
Roll - Longitudinal Axis, (I
x-x
)
Pitch - Lateral Axis, (I
y-y
)
Yaw - Vertical Axis, (I
z-z
)
85
110
170
(979)
(1267)
(1959)
