13.2
DETROIT DIESEL 53
Engine Operating Conditions
2200 rpm
2500 rpm
2800 rpm
Cooling System
160-185
160-185
Coolant temperature (degr. F.) - normal .....................
160-185
Raw water pump:
5.0†
5.0
5.0†
Inlet restriction (inches mercury) - max...............
Outlet pressure (psi) - max. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10.0†
10.0
10.0†
Keel cooler pressure drop (psi)
Maximum through system ...................................
6.0†
6.0
6.0†
Compression
Compression pressure (psi at sea level):
Average - new engine - at 600 rpm ......................480
Minimum - at 600 rpm ..............................................430
*The lubricating oil temperature range is based on the temperature measurement in the oil pan at the oil pump inlet.
When measuring the oil temperature at the cylinder block oil gallery, it will be 10o lower than the oil pan temperature.
†Maximum when this is the full-load engine speed.
SEC. 13.2 Page 3
July, 1972