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 Part nomenclature
New dimension
Condemnable
Min
Max
dimension
Scavenge pump connecting rod:
Sleeve to shaft clearance
0.003
0 005
Piston pin sleeve:
Inner dia
3.4900
3.5005
3.505
Outer dia
4.127
4.128
Press fit
Piston pin dia
3.4965
3.4970
3.493
Side clearance-Total
0.018
0.032
0.094
Lubrication oil pump drive:
Drive shaft to bearing clearance
0.005
0.0075
Camshaft-
Sleeve to shaft
0.001
0.0065
Thrust bearing end clearance
0.008
0.012
Sleeve-inside dia-
Scavenging pump end
2.752
2.754
Center and drive end
3.503
3.505
Table 1-4. Operating Pressures (Engine Model 37F16)
Normal operation of:
Operating pressure (psi)
Lubrication oil header
15 psi
Fuel oil header
2 to 6 psi
Soft water inlet
10 to 15 psi
Air receiver
1.5 to 2.5 psi
Starting air-maximum
250 psi
Firing pressure-maximum
860 psi
Hot engine compression: max
490 psi
min
420 psi
Maximum variation between cylinders
25 psi
Exhaust back pressure-inches of water-(measured at cylinder
most remote from exhaust outlet) maximum
12 in.
Table 1-5. Operating Temperatures (Engine Model 37F16)
Normal Operation of:
Operating temperature
in degrees F
Min
Max
Exhaust:
o
o
Recommended
400 F
58 F
o
Individual at cylinder-maximum
600 F
Soft Water outlet:
o
Recommended
135 F
Differential:
o
Inlet to outlet
10 F
Lubrication oil outlet:
160oF
Recommended
Differential:
o
Inlet to outlet-max
25 F
1-9
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