TM-9-2815-220-34
ENGINE, WITH CONTAINER:TURBOSUPERCHARGED, DIESEL ,FUEL INJECTION ,90-DEGREE “V” TYPE, AIR - COOLED, 12-CYLINDER, ASSEMBLY; MODELS AVDS-1790-2C (2815-00-410-1203) AND AVDS-1790-2D (2815-00-410-1204)
TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL
TM-9-2815-220-34 - Page 466 of 532
TM 9-2815±²³0±34
Figu1·e3-33f.
Co1nct
µosItIO±² o³camSlwjL ´ObE¶ (CaM¶)¸or
¹uº´ »¼J½cTIO±¾ pUmp I²²¿Ta´ÀuÁIo²Â ÃÄÅÆÇÈOɾʾ/ ËiÌWÍ
clearancE to 0.±1± inch by tuRing the adjustINg
screw clockW²se to decrease the cLearance or coun-
terclock³´se to iNcrease the clearaNceµ Check posi-
t¶on of va·ve adJusting screw pad to make sure seat
is flat oN valve stem aNd torque tighten adJusting
lock nUt to 175 pound¸¹Nchesµ
l.
ºsing thickNess gage blade part number
1±8826»6 as showN iN figure 3¼32½, set exhaust
valve clearaNce to 0¾±25 in¿ by tuÀing the adjustÁ
Âng screw clock³Ãse to decreaSe the ÄlearaNce or
counterclockwÅse to ÆNcrease the clearanceÇ Check
positioN of valve AdÈustiNg screw pad to make sure
seat is Fat oN valve stem and torQue tighten ad-
justing screw lock nut to É½Ê pouNd¼iNchesË
m.
Ìotate crÍnkshafT as necessÎry to position
Ïamshaft lobes (cams) iN downward position (ÐÑgsÒ
3¼33Ó and 3Ô332Õ as each of the remaiNing valve
rocker arm covers are installedÖ
n.
×ooselY iNstall all camshaft preformed hose
FaNge bolts (ØgË 3¼333)Ç Ùlide a piece of shim stock
between the lip of the preformed iNtercyliNder
hose and the matÚNg fÛces of the valve rocker arm
cover and cÜliÝdeÞ to Þemove any possible creasesß
'àighten the flaNge boltsá
NOtE
Do Not damage lip of preformed iNtercyl-
inder hoseË âny defãct ³älå be a source
of aN oiæ leakç
o±
ènstall two New cover Plate gaskets (éê figË 3¼63)
on each of ë2 rockeìí arm coversÒ ènstall 24 vaLve
adîusting screw ïover plates (3) on rðñker arm cov-
eòs and 12 injector tube cóamp suppoôõs (2) oN coVer
plates at locatioNs öhowN in ÷gure 3ø4é_ ùecure
3·³36
Change ´
FÎGURº ÏÐÑÒÓÔÕ Ön×ØaÙÀÚNg ÛAMÜhÝÞß I²¾àá1âãyäI±²åæçR
ho¶ºèéaêëì bOÀíîï
suppoúûs aNd plates
µo
covers üýth 24 bolts aNd Ðþat
washers (washers under supports
(¶,
ÿ¶g¾ 3¼63)Ë Āe-
cure cover plates to rocker arm covers ³Ãth 24 bolts
and fāat washers (4)Ă
¸¹º7»¼
Fuel Injector NozLe a±d HOlDer As-
semb²y
a±
Insta!J new prEfoRmEd pAckiNgS (f±g.
2-86)
on
fueL iNjector NozZle holderă âpply a thiN coating oÿ
grĄase on the Fat washer (gasket) (fýg¾ 2¼ą6) to re¼
•
tain gasket in
posiµio½
aNd install gasKet oN noZZle
assembliesË
b¾
Inst²U fuEl ³j1´CµtOR ¶OzZL· ²nd
H¿LdÀr ASÁÂmÃ
BÄiÅÆ uÆÇÈG
C¸ow-fOOT
a¹¹aºhmen» (w¼eNºH) ½P²Rt
½uÉBÂR
J
1±²0³67´.
Torque
tighµEn
¶o
500
po¾nd¿ÀnÁÂEÃ
aftÄÅ
ºOnnEµtÆnG
ÇhE
fUÊË
INjectOr
·Ub¸ ¹o
thÈ ÉoÊÊ
l
E
.
¸¹ÌÍÌÎ
ShroU³ P´aTEs and CyliµdeR ¶ef·e¸¹
toºs
a²
ènstall ÷ve right ĆntercyliNder deflectors ćfIgÇ
3¼6É) aNd fÆve inteÞcylĈndeĉĊ ċle
Č
čl
e
c
t
o
r hooksÒ ĎNstall
left iNtercylinder hooďs and defāectors in the same
maNNerç Ùecure the hooks ³Đth teN self¸lockÂng
nuts and Fat washers (÷gđ 3Ē60)ē
ÏÐ
Ĕnstall ÷ve right iNtercYliNder head deflectors
aNd hooks (÷g¾ 3¼6±) and ÷ve left iNtercyóinder head
deflectors and hooks and secure üĕth ten self-
lockiNg nuts and washersÖ
)
)
Back to Top
