TM-9-2815-200-35

ENGINE, WITH CONTAINER:TURBOSUPERCHARGED, DIESEL ,FUEL INJECTION ,90-DEGREE “V” TYPE, AIR - COOLED ,12 - CYLINDER , ASSEMBLY ;MODELS AVDS-1790-2M (2815-856-4996), AVDS-1790-2A AND AVDS-1790-2AM (2815-856-9005)

TECHNICAL MANUAL; DIRECT SUPPORT, GENERAL SUPPORT AND DEPOT MAINTENANCE MANUAL INCLUDING REPAIR PARTS AND SPECIAL TOOLS LISTS

TM-9-2815-200-35 - Page 129 of 779

Warning:

The valve cover is spring loaded .

Excercise care when removing cover.

Remove

1. Remove two self-locking nuts and flat washers at-

taching cover to crankshaft damper and oil filter

housing.

2. Remove cover shim washers, and gasket. Discard

gasket.

3. Remove stop, spring, and valve.

4. Remove valve sleeve.

Note.

The valve sleeve may be difficult t o

remove because of the presence of varnish fro m

the oil. An improvised tool (fig. 2-3) used with

mechanical

puller-5120-310-4668

may

be

used

to assist in removing valve sleeve. Insert hook

end of tool into hole in sleeve and gently tap until

sleeve is free.

Install

1. Install valve sleeve.

2. Install valve, spring, and stop.

3. Install new gasket, shim washers, and cover.

4. Install two self-locking nuts and flat washers securing

cover to crankshaft damper and oil filter housing.

Note.

To increase engine oil pressure, one o r

more shim washers can be installed between the

cover and the spring. To decrease oil pressur e

remove shim washers. Refer to paragraph 1-2 4

for

recommended

oil

pressures.

Figure 4-93. Removing or installing engine oil pressur e

regulating valve .

4-47