DMWR-9-2815-220
AVDS-1790 ENGINE OVERHAUL STANDARD
DEPOT MAINTENANCE WORK REQUIREMENT
DMWR-9-2815-220 - Page 135 of 1422
)
)
±
DMWR 9·2815±²20
5-12.
(Cont)
the crankcase, accordiNg to the locatIoN number stamped on the craNKcase
aNd cap.
The side of the beariNg cap marked
11FLY
E±D1² mUst face the rear
oF tHe cran³case´
riflA³
,±²l
³U8
J3o´A
c
Gµ
(4±
Apply a sMaLl aµouNt of O¶
30
eNg·ne oil¸
G¹ 9e to the threaded
area of each µaiN bearing cap stºd»
¼nstall a Plate wasHer on eacH pair
of ½·n bear¾ng studs.
¿nstaLÀ a slotted NUt on eacH ma·n Bearing stud
but do not tighten Nuts at this tiÁe´
²³´
Âlace a surFace plate aNd dial indicator gage on cranKcase fÃaNge wIth
gage iÄdicator restINg oN eNd oF studÅ
ÆeasUre and record he·gHt
.
each
stud.
ÇorqUe tIgHten ÈiN bearÉNg stÊd nUts to
µ00
poUNd-iNches.
AËterNately tighten aÌl four nÊts on eacH Main bearing to a torque of
700-
82¶
poUndÍ·Äches./ÆeasUre tHe HeÎght of eacH stud after finaL
Ï
torque´
ÐHe difFerence betWeen tHe stÊd HeigHt beFore and after torQue t·ghteNIng
iNdicates stUd stretcH.
Ñor½À stud stretch is
0·019
to
0·0¸2
in.
Apply
addit¾onal torque to obta·Ä a stud stretch of
0·019
to
0·022¹
Òo not
exceed
0·024·
Ó¿F any stud has stretched Ôre than
0º02»
iN. at
¼00
.
poUndÕ¾Nches torqueÖ it mUst be replaced.
Refer to paragra×h
5½5,
d
(5/ 6±
When repÀac·ng studs.
l3±&0a²/³C1.´
¾¿À
ØNstaÀL the
14
engIne craNKcas
µ
s iN tHe hoLes provided throÊgh tHe
crankcase and main beariNg ca
Ù
s.
ÚquaÀize the extension of the threaded
portions of tHe rods onÛ oF the craNkcase.
Apply a sMalL aµouÄt
of ÜE
Á0
engine oilÝÞß to tHe threaded portions oà each rod.
ánstaâl a plate Washer
ã
aNd a
9/16
slotted Nut on each eNd of the rodsä
TA034±0²
åIæurç
5½Â¹
èHecKéng ênsÎde diaëeter of ìain and MaiN thrust bear·ngsí
5/Ã4
·.
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