DETROIT DIESEL 53
Engine Operating Conditions 13.2
2200 rpm
2500 rpm
2800 rpm
Cooling System
Coolant temperature (degr F.) - normal ..........................
160-185
160-185
160-185
Compression
Compression pressure (psi at sea level):
Average - new "N" engine at 600 rpm ...........
590
Minimum-"N" engine - at 600 rpm...................
540
*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 10 lower than the oil pan temperature.
=Maximum when this is the full-load engine speed.
1972 General Motors Corp.
July, 1972
SEC. 13.2 Page 3
