DETROIT DIESEL 53
Engine Operation Conditions 13.2
3
-53 IN-LINE
ENGINE
(4-Valve Cylinder Head)
200rpm
2500 rpm
2800 rpm
Lubrication System
Lubricating oil pressure (psi):
Normal ........................................................................
40-60
40-60
40-60
Minimum for safe operation ........................................
30.0
32.0
32.0
*Lubricating oil temperature (degr. F.) - max. ................
200-235
200-235
200-235
Air System
Air box pressure (inches mercury) - min. at full load:
At zero exhaust back pressure ....................................
3.7
4.8
6.1
At maximum exhaust back pressure .........................
5.4
8.0
9.3
Air inlet restriction (inches water) - full load max.:
Dirty air cleaner - oil bath or dry type...........................
18.8
23.0
25.0
Clean air cleaner - oil bath or dry type
with precleaner ........................................................
12.0
14.0
16.0
Clean air cleaner - dry type without precleaner............
7.4
8.7
10.0
Crankcase pressure (inches water) - max.......................
0.8
0.9
1.0
Exhaust back pressure (inches mercury) - max.:
4.0+
Full load......................................................................
3.0
4.0
No load .......................................................................
2.1
2.7
2.7+ +
Fuel System
Fuel pressure at inlet manifold (psi):
Normal with .070" restriction .......................................
45-70
45-70
45-70
Minimum .....................................................................
35
35
35
Fuel spill (gpm) - minimum at no-load:
.070" restriction ...........................................................
0.6
0.6
0.6
Fuel pump suction at pump inlet
(inches mercury) - max.:
Clean system ...........................................................
6.0
6.0
6.0
Dirty system.............................................................
12.0
12.0
12.0
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