TM 5-3825-225-14&P
1-59. LUBRICATION OIL PUMP DRIVE GEAR.
a. Number of Teeth ....................................................................................................... .................... 12
b. Inside Diameter of Gear Bore ....................... .............. ......... 0.4965-0.4970 in. (12.611-12.624 mm)
c. Outside Diameter of Oil Pump Drive Shaft ............................. 0.4983-0.4986 in. (12.657-12.664 mm)
d. Interference Fit of Gear on Shaft ............................... ................. 0.0013-0.0021 in. (0.033-0.053 mm)
e. Lubricating Oil Pump Drive Gear Backlash .................... ............ 0.0155-0.019 in. (0.394-0.483 mm)
1-60. OIL PUMP PRESSURE RELIEF VALVE.
a. Type ......................................... ........................................................ ..............Spring Loaded Plunger
b.
Pressure Setting..................................................................................... 50-65 psi (344.8-448.2 kPa)
c.
Length of Plunger......................................................................................... 0.9375 in. (23.813 mm)
d. Outside Diameter of Plunger ............................................. .........0.5585-0.5595 in. (14.19-14.21 mm)
e. Inside Diameter of Valve Housing Bore .............. ......................0.5605-0.5625 in. (14.24-14.29 mm)
f. Clearance of Plunger in Bore..........................................................0.001-0.004 in. (0.025-0.102 mm)
g.
Outside Diameter of Spring ................... ............................ ............0.368-0.377 in. (9.347-9.576 mm)
h.
Spring (Free Length) ..................................................................... ...................... 1.5 in. (38.10 mm)
1-61. LUBRICATING OIL FILTER.
a. Type ......................... ............................................................................................................Full Flow
b.
Element Type ...........................................................................................................................Paper
c.
By-pass Valve Setting ........................................................... Opens Between 13-17 psi (90-117 kPa)
Pressure Differential
d. Type of Valve ................................ ................................................... ................... Spring Loaded Ball
1-62. COOLING SYSTEM.
a. Type ............................................................ ............................................................. ....Water Cooled
b.
Cylinder Block and Head ................................ ..................... ....... Thermo-syphon Impeller Assisted
c.
Engine Water Capacity (Less Radiator) ....................... ................... 6 Imp. pt (7.2 U.S. pt or 3.4 1)
1-63. THERMOSTAT.
a. Type ........................................................... ................................................................... Wax Capsule
b.
Opening Temperature ....................................... ........................................... 175°-182° F (80-84C)
c.
Fully Open Temperature ................................................................................ 200-205F (94-96C)
d.
Minimum Travel at Fully Open Temperature ................................................... 0.3125 in. (7.94 mm)
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