DMWR-9-2815-220
AVDS-1790 ENGINE OVERHAUL STANDARD
DEPOT MAINTENANCE WORK REQUIREMENT
DMWR-9-2815-220 - Page 273 of 1422
)
±
DMR 9·2815±220
Section VII±.
OvERHAUL OF CYl±ND²R ASS²MBLy
5-34.
Genera³.
This section co´eµs o´erhau³ of t¶e c·¸inder assemb³· and
associated paµts (¹ig.
5-30) (S 147)±
Specº¹ic ºnstµ»ctions on disasse¼b³·,
½c¸eanºn¾, ºnspectºon, µepaºr, and asse¼b¸· aµe inc¸»ded.
Weaµ ¸i¼its¿ fºts,
to¸eµancesÀ and o´eµ¶au³ insPection pµocedures ÁO±Â1s) ¹or indº´ºd»a¸ co¼ponents
are ºncÃuÄed¿ and stud identºfºcation infoµ¼ation ºs inc³uded ºn the µepaiµ
instµuctºonsÅ
5-35²
Æisasse¼b¸· and C¸eanin¾Å
a.
Ǻsasse¼b¸ÈÅ
Re¹eÉ to ÊË 9-28Ì5-220-34.
bÍ
γeanºnÏ.
(³)
Ðeneµa³.
Refer to paµa¾µap¶
5-3,
a¿ b¿ and c
(
5´µ
c³eanin¾ º
_
s
Ñ
tructi
Ò
ons
t¶e c·³ºndeµ
Ó
asse
¼6
ÔÕÖ
¹oµ ¾ener׸
(2)
Îombustºon c¶aØbeµ.
ReÙÚ´e ¶ea´· caµbon deposºts fro¼ co¼b»stºon
cha¼ber wºt¶ a scµaPeµ oµ bÛunt too³ t¶at ܺ³¸ not nick or scµatch the s»µface.
Re¼o´e on¸· ¶ea´· caµbon deposits; the s»µface need not be c³eaned to a ¼iµroµ
finºs¶.
¶3)
F»e³ injector nozZ³e seat.
γean caµbon ¹rom t¶e f»e¸ ºnJector noZZ¸e
seat ܺt¶ the noZZ¸e carbon c»tteµ
¶13·
fi¾:
2-4) (¸µ¹
)
as shoÜn ºn ¹iguµe
5º3³ { S 157) .
Ý4Þ
va³´es.
C¸ean caµbon ¹ro¼ ´a¸´es ܺth a ܺµe br»shß
5»36²
±nspection.
aà
Geneµa¸.
Inspect t¶e c·¸inder asse¼b³· and associated paµts accoµdºng to
instr»ctºons ºn
á
paragrap¶
5¼½ {5/2 )
and the OIâ's ºnc³uded in thºs section.
Wear ¸i¼itsã ¹its, and to¸eµances ¹or the c·¸inder asse¼b³· are ³isted in tabäe
5¾¿À Á5/48
)
.
See para¾µap¶
5-4Â
b and c
¶5/3
)
¹or exp¸anation of wear ³iØitsÀ
¹åts¿ and to¸eµances.
b.
η¸ºnder Asse¼b³·.
(Ã)
C
t
³ºndeµ bore siZe.
Standaµd and o´eµsºze c·¸ºnder assemb¸ºes are
iæentºfºed
· tçe steeè staÙPed part nu¼ber ¸ocated on t¶e coo¸in¾ fan s¶roud
béacket ÙÚuntºn¾ f¸an¾e on the ex¶aust poµt sºde of the c·¸indeµ assemb³·
.
{¹ig.
5-32) Á5/Ä57)²
O´ersºêe c·³ºnder asse¼b¸· identi¹icatºon n»mbeµs aµe ³ºsted
f
ië tab³e
5ÅÃÃ ¶5/Ã57)Æ
(2)
Îì¸indeµ boµe ¼easuµe¼entí
C·¸indeµ boµes ¼a· taper s¸i¾ht¸· at t¶e
¶ead end w¶en at roo¼ te¼peµat»µe.
îhe taïeµed section expands and is essentia¸Ã·
strai¾ht at oïeµatin¾ te¼perat»µeí
ð¶e pµoced»µe foµ ¼eas»µin¾ c·³ºnder boµe ºs
añ
fo¸¸owsò
·
(aó
ôºt¶ t¶e c·¸ºnder at µooØ te¼peµat»µeõ taKe two c·³ºndeµ boµe Øeas»µeö
¼ents at poºnts ÷ t¶µo»ø¶ ù (fi¾.
5Ç33) ¶È/µ5É)²
Meas»µe dºaúteµ
5/µ½Ê
Chan
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