DMWR-9-2815-220
AVDS-1790 ENGINE OVERHAUL STANDARD
DEPOT MAINTENANCE WORK REQUIREMENT
DMWR-9-2815-220 - Page 286 of 1422
DMR 9·2815±220
5-36.
(Cont)
(6)
Screw Thread iNserTs.
Refe± to paragraPh
±²4,
j
³±/4
)
wheN I²spectINg
cylInder head asse³Ly sc±E Th±ead INserts´
´7µ
FINsµ
Al¶owab·e mIssINg fIN area oN the cy·INder head Is shown ¸N
fIgure
5-¶· ¸60)¹
º8»
MouNTInG flaN¹e aNd doweL hoºes´
»Nspect doweL holes IN The ¼uNTINg
fLaNge fo½ wear, N¾c
ks¿ aND BUrsÀ Áso Ânspect fo½ cracKs In the ÃuntINg flaNgeÄ
cÄ
Va·ve ÅocKer A±Æ Cove±s aNd AssocIaTed ÇarTsÈ
¼1½
VaLve rocKer a±m cove±Ä
ÉNspecT valve rocKer sÊpPort cover fo½ cracKs,
pa±TIcularËy IN area of rocKer a½m shaÌt plugs, usIng dye penetraNt ÍThodÄ
ÎhecK
vaLve adjusTINg access cover fo± cracKsÏ aNd for warpage Ä
.
±
(3)
Va·ve ±ocKe± armsÄ
ÉNspect valve rocKer arÆs for cracKs usINg
Ð
mICfEF
²³´µU-¶.
·-±²
•.
Ð
¸ ¹ º
r
ÉNspecT The
ÑushIng-Type beariNg sleeves IN the rocKer arÆs fo± scorINg and ·ooseNessÄ
Òasure
INside dIaÓTe± of The BearIÔg sËeevesÄ
Õep·ace bea±INg s·eeves that do Not ÆeeT
lIÆiTsÄ
ÖNspect valve rocKer a±m ro¶lers for scuff or sco±e ×±Ks aNd LooseNess
oN huBÄ
Åotate roL·er aNd cHecK c·earance beTweeN ±olLe± and hub By ÆouNtIng
±ocKe± arÆ secureLy IN a soft-Jawed vØseÄ
SeT a dIa¶ indIcato½ agaInst the coNTact
su±face of the roL·e± aNd Ùve ±oÚer through the extreÆes of ÛÜavel
Wl»_
checKINg The ±eadiNg oN the dial INdIcatorÄ
ÝimIts should bÞ0Ä005
1n´ ßXImuÆÄ
àNspect adáustINg screw fQr strIpped or da×ged Th±eads By TurNâNg screw iN aNd out
of rocKer arãsÄ
Screw äusT Turn freeLyÄ
CåecK swIvel Pæd and adçusting screw fo±
free rotaTioNÄ
èa±K daéged ParTs for replacemenTÀ
Va·ve ±ocKe± aê shafTsµ
ÎhecK valve ±ocKe½ arë shafT for cracKsì'í
îïð
ñò
±
²³
óôõAöË÷søo
ùchecK fo± scuffIÔgú sco±es, aNd ÆeTa
1
PI cK uP o±
ûeasÊre ouTsIde dIaÆeTer for wearÄ
dÄ
Va·ves.
¾ ¿À
Va
¿
ve headÄ
»NsPecT The
for cracKs usIng
h¼u
ic½
PAr¾¿ÀtÁ{'/HLoÂÃÄ
A·so ¸NsPecT for evideÔce of p¸TTINg, ImPerfecT seaTIng, or
wa±Paüe oN vaËve head.
ýeavy discoLoraTion, BurÔiÔþú erosioÔ, o± a heavy ca±Bon
ÿ
dePos¸T oN The valve face iÔdIcaTes a wa±Ped vaLve.
A light frosTed aPpea±aNce o±
minor dIscoËoratioN oN The vaLve does Not indicaTe a wa±Ped o± uNse±viceabLe va·veÄ
±/1Á9
Â
Back to Top
