Oil Pan Cleaning, Inspection and Repair

TM 10-3930-630-34

f. Inspect bores in housing for wear and scoring.

11-8. Oil Pan Cleaning, Inspection and Repair

g. Replace unserviceable parts.

a. Clean pan thoroughly with cleaning com-

pound, solvent (Fed. Spec. P-D-680) and dry.

11-12. Oil Pump, Reassembly and Installation

b. Inspect pan (4, fig. 11-12) for cracks and other

damage. Check gasket surface and clean thoroughly.

a. Reassembly.

c. Inspect filler blocks and seals for deterioration

(1) Install key (14, fig. 11-13) on shaft (13) and

and damage.

press driven gear (15) on shaft. Secure gear with

d. Replace unserviceable parts.

retaining ring (12).

(2) Install shaft (13) through housing (18).

11-9. Oil Pan, Reassembly and Installation

Press drive gear (11) on shaft and drive pin (9)

a. Reassemble and install the oil pan assembly in

through shaft (13) and gear (11).

reverse numerical sequence as illustrated in figure 11-

(3) Install idler gear (16) in housing.

12.

(4) Check gear clearance in body as shown on

b. Refer to LO 10-3930-630-12 and fill engine with

figure 11-14, using a feeler gage. Gears must have a

correct oil.

clearance of 0.001 to 0.003 inch (0.025 to 0.096 mm) in

11-10. Oil Pump, Removal and Disassembly

the housing and must have no contact with the walls.

a. Refer to paragraph 11-7 and remove oil pan.

(5) Install gasket (8) on housing and check gear end

b. Remove and disassemble the oil pump

clearance with a feeler gage as shown on figure 11-15.

assembly in numerical sequence as illustrated in figure

The clearance must be 0.0015 to 0.006 inch (0.038 to

11-13.

0.152 mm).

(6) Install cover (7), gasket (6) and frame (5).

11-11. Oil Pump Cleaning, Inspec tion and Repair

Secure frame with screws (4) Install screen (3) in

a. Clean all metal parts in cleaning compound,

frame.

solvent (Fed. Spec. P-D-680) and dry thoroughly.

b. Installation.

b. Inspect drive gear for wear and damage.

(1) Install coupling (10) and install pump in engine.

c. Check screen for clogging and damage.

Make sure drive gear (11) meshes with gear on

d. Inspect cover for wear and damage. Refinish

camshaft.

cover surface, if necessary.

(2) Secure pump with nut (1) and lock washer (2).

e. Check driven and idler gears for wear and

(3) Refer to paragraph 11-9 and install oil pan.

scoring.

(4) Refer to LO 10-3930-630-12, and fill engine with

oil and operate engine to check oil pressure. Adjust oil

pressure (para 11-15) if necessary.

11-9