Valmet 309 - 2. INJECTION PUMP BOSCH A; A. CHECKING THE INJECTION TIMING

2.
I
NJECI
I
O{
CHECKI
NG
PnP 8osctr
i i
T}E I
NJECTIOiI
TII,IING
tlmlng ls
marked
qr
the
fO9,
lll and
4ll
englnes
danpei In 6l
I
and 612
Turn the crankshatt
to 6
posltlon rhsre
lhe lst
cytlnder
plsion
reoch6s lls cqrpresslon
stroke
top dead cenfre. Thgn
turn
ihe
cronkshaf+
backvards
unttl
the llmlng
mark oo
the
pulley
Dasses
th€ lnsoectlon hole.
Reriove
the con+rol rod
cover
fron
the lnJecilon
Dumo.
Turn lhe control
rod to
drlvg
posltlon
rlth tool
9025 99000.
Rqrcve
the lst cyllnder
lnJectlon
plpe.
Blor
the clnlc
part
of
th€
pressure
valYe
holder
fr€€ of tuel.
Turn
ihe crenkshaft
lorrards un+ll
tuel surtoce
In
the
pressure
valve
holder
stlrs,
but d€s
nof
yet
rlse.
lf lhe lnlecilon
tlmlna
märk ls
ln llne
rlih
ttre tlp oi
the Indl caioir,
fhe
InJec+lon
+lmlng
ls correct. OtlFrxlse
cdJust
the tlmlng
as
lnsiructed
In
Dolrf
9
2
B.
After checklng
and
posslble
adJustlng
Install
ihe InJec+lon
plpe
6nd
fhe conlrol
rod
cover.
Let
ih-e englne
run
for o
lel mlnutes
and
recheck. Thus
you
con
ensur€
ihat there
ls
no
alr lef+ In
the luel sysiem
rhlqh
nlghi
aftoct
ih€ tl ml
ng.
tlotcI The
lnJ6ctlon
crankshaf+
pu
I l6y ln
and
on the
vlbrötlon
eng
I nes.
In
lraclor englnes
the Injecilon
ilmlng
ls
marked on the
slde
of
+he tlyrheel. The
tlyrhoel houslng hös
an lnspectlon openlng end
a hole
fq- ihg tlmlng chek
Pln.
oue +o the autonailc
excess tuel
feed of tho
lnjecilon
pump
th€ control
rod musl be npved to
drlye
poslflon rhen
öecklng
the
lnJectlon
tlolng,
otherrlse
fhe Injectlon ilmlng rlll be
I ncorreqt !
lst rcy ot ch€cllng3
l.
Clean
ihe lnJectlon
punp
and lls surroundlngs
carefu
I ly.
2.
ln
iractor
Englnes rslpvo +he rubber
plug
fro||l
the Inspectlon
hole In
ihe
tlytrheel
houslng.
Ins€rt
+he
check
eln
(9025
99100) ln
the
hole
sltuoted on thg front
f6ce
ot the flyrheel
hous
I n
g.
6.
8.
9-13