User's Manual

15
TORQUE SPECIFICATIONS
Assembly torques in inch pounds (in. Ibs.)
13mm Cylinder head bolts ................................. 265 - 292
10mm Valve bolts ................................................101 -111
Rear end cover or adapter bolts/studs ............. 195 - 212
Bottom cover ..................................................... 97 - 115
Crankshaft nut ............................................. 1200 - 1440
Metric (Detroit Diesel)
M12
x
1.5 .................................................................... 222
M16
x
1.5 .................................................................... 386
M22
x
1.5 .................................................................... 531
M27
x
2 ....................................................................... 792
U.S. (Caterpillar)
1/2"-20 UNF ................................................................ 222
3/4"-16 UNF ................................................................ 398
7/8"-14 UNF ................................................................ 531
1 1/16"-12 UNF ........................................................... 792
DIMENSIONAL DATA
Port Sizes
Metric (Detroit Diesel)
Water inlet ........................................................M16
x
1.5
Water outlet ..................................................... M16
x
1.5
Discharge safety valve ..................................... M16
x
1.5
Air discharge ....................................................... M27
x
2
Unloader port .................................................... M22
x
1.5
Oil inlet (end cover or adapter) ........................ M12
x
1.5
U.S. (Caterpillar)
Water inlet ................................................... 3/4"-16 UNF
Water outlet ................................................. 3/4"-16 UNF
Discharge safety valve ................................. 3/4"-16 UNF
Air discharge ........................................... 1 1/16"-12 UNF
Unloader port ................................................ 7/8"-14 UNF
Oil inlet (end cover or adapter) .................... 1/2"-20 UNF