DMWR-9-2815-220
AVDS-1790 ENGINE OVERHAUL STANDARD
DEPOT MAINTENANCE WORK REQUIREMENT
DMWR-9-2815-220 - Page 285 of 1422
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5-36.
(Cont)
approximTely paraLLeL to LIne of vaLves.
±heN Take MasureMNt
90
degRees To fIrst ²Easure³Ent aND average The ´easureµENTs¶
(b·
¸he head eNd ²EasureMNt ¹ust noT exceeD the fºaNge end average
µEasUReMNts.
(c)
Co»are MasureMNts TakeN
90
degrees aparT.
¼ach of Two MasUre½NTs
´usT be wIThIN
0±²²3
INches of each oTher¾
¿f The dIffereNce exceeDs
0³003
INch
-
e
À
s
,
The cyLInder Is out of RouND aNd ´usT be ´arked for
ÁÂpaIr¾
BO±ÃOÄ
OF
SKIRT
ÅOƼ:
AÇÈ ÉÊ˼ÅSÊOÅS
SHOWÅ
A̼ ÊÅ ÊÅÍÎÏSÐ
c
B
6.25
_
8´µ5
9.75
1²¶5²
ÑIgure
5·33¸
CyºINder bore dIÒEnsIonsÓ
¼
0
TA034323
(3¹
Vaºve GuIdes¶
ÊnsPect The INTaKe aNd exhaust vaLve guÔDes for cracÕs,
Ö
gaLLI×ØÙ erosÚnÛ
4
scuffINg"Ü
J
ÝÞ
e f
E
o
91-±
a
mt
.L
²
1
-(
i
³
CU±²l
Sp
LA",t³ oF
VALvE
Cv±Df h²³ ´µ
<'l"pf
iN.
º4»
VaLve seaT INsertsß
¿Nspect INserts for pItted surfaces.
àf INserts are
crackeD, ºooseá or daâageã äeyoNd RePaIrÛ the cyåINDer ¹usT be rePLaceD.
ChecÕ
vaLve seat coNtacT by LÔghtºy bLuæNg face of a Neç vaLve wITh èrussIan bLue,
éêëìíì30501 aND PLacIng vaLve INTo posITIoN oN vaºve INsert¾
îoTaTe vaLve oNeì
haº f TïrN oN
ðNserT
aND check vaLve seaT for íñussIan bºue coòtacT.
VaLve seaT
âusT sóoô contacT aºº arouNd
¼3½²°¾,
as INdÔcaTeD by õrussÔan bºue traNsferÛ To
quaºÔfy as a servIceabºe INserT.
¿Nserts That Do NoT show aLö arouNd coNtact
¹usT be ÷arÕed for repaIr.
(5ø
ùueº ÔnjecTor nozZLe seaTÐ
êNspecT the fueL INJector Noúúºe seat ûor
cracksü gaýºþngü
erosÿoN, scĀāNgÛ hard cañbonü or burnÔngÐ
5/¿5À
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