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 517 of 779

Figure 7-5. Checking accessory drive gea r

and starter idler gear backlash .

b. Crankshaft Oil Seal Housing and Support .

Refer to figure 5-168 and install new candlewick

packing in four openings, at the crankcase and

oil seal housing support parting line as shown in

figure 7-6. Refer to figures 5-167 through 5-165

and install oil seal cap and housing attachin g

parts and retainers .

c. Torque Tighten Crankcase Tie Rod Nuts .

Refer to figures 5-172 and 5-171 and, with th e

aid of an assistant holding the slotted nuts on

opposite side of crankcase, tighten crankcase tie

rod nuts to 640 pound-inches. Install 14 cotte r

pins to secure nuts. Care should be taken so that

the tie rod extends equally on both sides o f

crankcase .

d. Crankshaft Oil Seal.

The crankshaft oi l

seal is installed during overhaul of the crankshaft

(fig. 6-32). Refer to figure 7-7 for correc t

position of oil seal split line.

Figure 7-7. Correct position of crankshaft oi l

seal split line before installing seal retainer .

e. Transmission Adapter.

Refer to figures 5 -

164 and 5-163 .

f. Flywheel .

Note.

The dowel pins (fig. 7-8) are so located

that the flywheel can be installed on the flange

on the crankshaft in only one position .

g. Transmission Drive Gearshaft Assembly .

(1) Position transmission drive gearshaf t

assembly on dowel pins (fig. 7-8) which protrude

through flywheel .

(2) Refer to figure 5-159 and alternatel y

tighten bolts to 1000 pound-inches .

(3) Check flywheel runout as shown i n

figure 7-9 using dial indicator. Runout shoul d

not exceed 0.015-inch .

Replace flywheel i f

runout exceeds this limit .

Figure 7-6. Installing candlewick packin g

between crankcase and oi l

seal housing support .

7-5