TM 5-3805-281-24-2
Lubrication System
LUBRICATION SYSTEM SPECIFICATIONS
ITEM
SPECIFICATION
Engine Oil Pressurea @ 1800--2000 RPM ............................................................................
280--400 kPa (2.8--4.0 bar) (40--58 psi)
Oil Filter Bypass Valve Operating Pressure ...........................................................................
220 kPa (2.2 bar) (32 psi)
Oil Cooler Bypass Valve Operating Pressure .........................................................................
220 kPa (2.2 bar) (32 psi)
Pressure Regulating Valve Starts to Operate .........................................................................
340 kPa (3.4 bar) (49 psi)
Oil Pressure Regulating Valve Spring:
Compressed Length ................................................................................................................
43.0 mm @ 6674 N (1.69 in. @ 1517
lb-force)
Free Length .............................................................................................................................
85.0 mm (3.35 in.)
Oil Filter Bypass Valve Spring:
Compressed Length ................................................................................................................
30.0 mm @ 6478 N (1.18 in. @ 1418
lb-force)
Free Length .............................................................................................................................
44.0 mm (1.73 in.)
Oil Cooler Bypass Valve Spring:
Compressed Length ................................................................................................................
30.0 mm @ 6478 N (1.18 in. @ 1418
lb-force)
Free Length .............................................................................................................................
44.0 mm (1.73 in.)
Oil Pump:
Crankshaft Gear-to-Oil Pump Drive Gear Minimum Backlash ...............................................
0.08 mm (0.003 in.)
Pump Gear Backlash ..............................................................................................................
0.33--2.00 mm (0.013--0.079 in.)
Oil Pump Drive Gear-to-Crankshaft Throw Minimum Clearance ...........................................
0.38 mm (0.0015 in.)
Maximum Drive Shaft End Play ..............................................................................................
0.15 mm (0.006 in.)
Maximum Drive Shaft Side Movement ...................................................................................
0.17 mm (0.0065 in.)
Oil Filter Housing-to-Cylinder Block ........................................................................................
80 Nm (60 lb-ft)
Oil Cooler Cover-to-Cylinder Blockb ........................................................................................
37 Nm (27 lb-ft)
Oil Pressure Regulating Valve Housingc-to-Cylinder Block (External) ...................................
61 Nm (45 lb-ft)
Oil Pump Outlet and Oil Cooler Cross-Over Tube-to-Cylinder Block Adapter (Internal) .......
54 Nm (40 lb-ft)
Valve Plugs .............................................................................................................................
100 Nm (74 lb-ft)
Oil Pump:
Drive Gear-to-Pump Drive Shaft Nut ......................................................................................
54
Nm
(40
lb-ft)
Pump Cover-to-Housing ..........................................................................................................
41
Nm
(30
lb-ft)
Intake (Pickup) Tube-to-Cover ................................................................................................
41
Nm
(30
lb-ft)
Pump Housing-to-Cylinder Block ............................................................................................
42
Nm
(31
lb-ft)
Oil pressure with oil sump temperature at 105C (220F).
a
b
Refer to REMOVE, INSPECT, AND INSTALL ENGINE OIL COOLER, later in this group for cap screw tightening sequence.
c
Use new, stronger-grade cap screws when reinstalling oil pressure regulating valve housing.
Continued on next page
RG,RG34710,1214
1923OCT971/2
