MAINENGINEUEIPUMPOVERHAUUI{GROCEDUREMOUI{TING:1 Mount he lifting
ool on Barrer plungerassembry hich sreadyor mounting.2 Securehe
tool to the Banelby ighteninghe wo screws, ndaftach he plungero by
ighteninghe centre he spindle f the toolscrewof the spindle. he ool
is hus ixedon the barrel n sucha way hat
itscorrectpositioningsensuredduringmounting.3 Makesure he Martlng"
on the plunger ndbarrel s on the camside.4 using he spindle f the
ool, pull he plunger shighup nthe barrelaspossible, t the sameime
urning he spindle oas o position' the plunSeroot correctlyn
retationo thecutoutof the regulating uide.Lock he stoprint in
thispostionby means f thestopscrew.5 Beforemountinghe Barrel&
Plunger ssemblyn the pumphousing,ubricatehe hread or the
imingguideandall sealingingswith molybdenumisulphide.
Pull he regulatingoothed ackas arout aspossible ndcheckhat
theextractorool ismounted orectry n the iming oothed ackwhen his s
n itsouterposition.Checkhat theslot n he Barel coincides ith the
hole or theguidescrew.Lowerhe Barrel ssemblyarefully to the
pumphousing.f necessaryurn the regulating uidea little (usinghe
toothed ack) omake he oot and he blockof the plungerit properlyn
thecutoutof the regulating uide.Lowerhe barrelassemblyo ar down nto
he pumphousinghat the sealing ingsof the barrelareabout o enter he
bore n thepumphousing' hencontinue ressing own he barrelplunger
ssembly ntil he barrelassemblyestson op of the timingguide.In
hisposition, lot n the Barrelwill be visiblerom he holeof the Guide
crew.Therewill a gapbetweenhe ool and he pumphousing ndPlungeroot
wirtbe ustabove he bayonetoint in he Roiler uide.
78
8/12/2019 Fuel Pump Overhauling Dismantlin
2/5
91011T2
L4151616
Loosenhe nuton the extrirctor, isconnecthe pulling od rom he
timing oothed ackand emove he extrilctor.En&ging he threadof
the fuelpumpbarrelwith theTimingguke is accomplishedy pressing-inhe
toothed ack.Checkhat the oothed ack scorrectty ngagd by
pressing-inhe rack.Whendoing his he pumpbarrelshallmore
downwards.After landing'the barrelassembly, oH he toolspindle
ndunloct the StopRing.Presshe plunger own nto contactwith the
hrustpieceof the Roller uide.lnspecthe position f the plungeroot
through he inspection ole.When he plungers n place, resshe
regulating od n, herebyturning he Plunger nd causinghe plungeroot
to "interlock"with the bayonetoint of the Roller uide.Checkt at he
plungerscorrectly ngaged ypullingat the spindle f the lifting
ool.Whendoing his, t is not bepossibleo lift the
spindlethusPlunger).After Barrel& Plunger ssemblys n position,
lace he Barrel uidescrewand ighten.Connet he links or the
timingdriveand he regulating rive.Mount he unionandpointer or the
imingdriveand he regulating rive.Dismounthe lifting ool fro Barrel
nd Plunger ssembly.Mount he FuelpumpTopCover fter changin8he
sealing asket..
