OPERATING SPECIFICATIONS
2 1 0 0 RPM
1800 RPM
2300 RPM
LUBRICATION SYSTEM
Lubricating oil pressure (psi)
Normal....................................
45-65
43-65
45-65
Min. for safe operation.. . . . . . . . . . . . . . . . . .
28
30
30
Normal....................................
200-235
200-235
200-235
AIR SYSTEM
Air box pressure (inches mercury)-min. at full load
At zero exhaust pressure.. . . . . . . . . . . . . . . .
30.0
21.0
37.0
At max. full load exhaust pressure
(clean ports). . . . . . . . . . . . . . . . . . . . . . . . . . . . .
19.5
27.7
34.7
Air inlet restriction (inches water)-max
Full load speed
Dirty air cleaner (dry). . . . . . . . . . . . . . . . . . .
14.5
20.0
20.0
Clean air cleaner (dry). . . . . . . . . . . . . . . . . . .
8.7
12.0
12.0
No load speed
Dirty air cleaner (dry). . . . . . . . . . . . . . . . . . .
8.7
12.0
12.0
Clean air cleaner (dry). . . . . . . . . . . . . . . . . . .
7.2
Crankcase pressure (inches mercury)-max.. .
5.2
0.9
1.2
Exhaust back pressure (inches mercury)-max
Full load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
2.0
3.0
3.0
FUEL SYSTEM
Fuel pressure at inlet manifold (psi)-normal..
50-70
50-70
50-70
Fuel spill (gpm) -min. a t n o l o a d ( 0 . 0 8 0 " o r i f i c e )
0.9
0.9
0.9
Pump suction at inlet (inches mercury)-max
6.0
6.0
6.0
Clean system.. . . . . . . . . . . . . . . . . . . . . . . . . . . .
12.0
Dirty system. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12.0
12.0
COOLING SYSTEM
Coolant temperature (degrees F)-normal. . . . . .
160-185
160-185
160-185
COMPRESSION
Compression pressure (psi at sea level)
A v e r a g e - new engine at 600 RPM.. . . . . . . .
475
Minimum at 600 RPM.. . . . . . . . . . . . . . . . . . . . .
425
1
The lubricating oil temperature range is based on the
temperature in the oil pan at the oil pump inlet.
When measuring
the oil temperature at the cylinder block oil galley, it will be
approximately 10 lower than the oil pan temperature.
General Information
11A-7