OIL PUMP IDLER GEAR, OIL PRESSURE REGULATOR VALVE AND OIL PUMP ASSEMBLY.

293. OIL PUMP IDLER GEAR, OIL PRESSURE REGULATOR VALVE AND OIL PUMP ASSEMBLY.

Wear limits

Depot

Field

Sizes and fits

Fig.

Ref.

maint

of new parts

letter

Point of measurement

No.

a. Oil Pump Idler Gear.

0.7876

0.7870 to 0.7874

515

Inside diameter of oil pump idler gear

bearing.

0.7867

0.7869 to 0.7873

Outside diameter of oil pump idler

gear shaft.

0.0008L 0.0006L

0.0003T to 0.0005L

C-AH

Fit of oil pump idler gear bearing on

shaft .

1.8496

Out side diameter of oil pump idler

1.8499 to 1.8504

gear bearing.

1.8506

1.8494 to 1.8504

1.8506

Inside diameter of oil pump idler gear.

Fit of bearing in oil pump idler gear.

0.0010 T to 0.0005L

0..000L 0.0006L

C-D

b. Oil Pressure Regulator Valves and Springs.

517

Oil pressure regulator valve plunger

spring:

2.2800

F r e e length ----------------------

27.45 lbs 0.3 lbs

Load at 1.750-inches -------------

1.4990

Maximum solid height -------------

0.7995

0.8000 to 0.8010

0.7990

Outside diameter of plungers --------

0.8030 to 0.8040

0.8050

0.8045

Inside diameter of plunger bores in

housing.

0.0020L to 0.00040L

0.0050L 0.0045L

B-C

Fit of plungers in housing bores -----

Piston cooling relief valve plunger

spring.

1.6200

F r e e length ----------------------

Load at 1.380-inches -------------

7.65 lbs 0.7 lbs

0.9520

Maximum solid height -------------

c. Oil Pump Assembly.

(1) Oil pressure relief valve and spring.

FIGURE 517. REPAIR AND REBUILD STANDARD POINTS OF MEASUREMENT

FOR OIL PUMP REGULATOR VALVE.

340