I XSTRI'CT IOiIS FOR
REPAIRII{G r}€
Flf,L
SYSTEII
ilotal Thls
manual
glves
on ly
genorol
lns+ruc+lons
for rEpalr and s€rvlce
fiEosurgs
related io +he
luel
system.
Thls
applles
partlcularly
to
the
InJectlon
pump
rhlch can
b€
repalred only by o sp€clally
+ralned
Person
rho has the necessary spgcläl
iools and
gaug€s.
All
s6rvlc6
and roDelr rork rgloted
to the
fuel
sysiem requlres speclal cars
and cleonllnessl
FEED PUIiP
ELEEDI I{G THE
FIEL SYSIEM
OpEn the
hand
pump
plston
by
turnlng.
Open
'the
bleedlng
screi on
iop of fhe
fllter. Pur|p rlth
ifl€
hand
punp
un+ll
the
conlng
ou't of th€ ble€dlng
screr ls
free
bubbles. Close th€
fllier bl€edlng screr.
open the connecilon of the InJectlon
pump
over-
tlor
valve c the
pressuro
equollzgr ln
the
[Pn
type
purnp.
Conilnue
purplng
untll ihe fuel
conlng out of ihe
overf lor valve conn€cllon
ls
tre€ lrqn
bubbl€s. Close +he overf lo[ valve
connec+lon and close the
hand
pu|l|f' plston
by
turn Ing.
!llpe leaked
fuel otf
.
ICASI.R
I
}tG
TI€ FEED
PR€SSiNE
Cl6an the lnJecilon pump
and the
fl
l+er
externally
6s rell as +he fuel
plpes
Inbetreen.
U-
brush
and sultable
solveni.
4.
B.
1.
t.
Attach ihe
geug€
betre€n fhe fllier and fhe
plpe
leadlng
io the lnjecflon
pump.
f. Run fhe onglne at ldllng speed
for
o
rhlla and
coopare ihe
gaug€
roadlng
rl+h
englne ratlng.
Nqtcl
lf
l-he
9au9e
readlng
falls b€lor railng
li
moy
be cöused
by:
-
defoctlvg
ovgrf lor
valve
-
cloggod fusl t I lter
-
defoctlve feed
pump
-
clogged or
leaklng fuel
plpas
or
connectlons
C. C}ECKI IG I}E OYERfLO| VALVE
lf
the
fe€d
pressure
dlt{ers from +he ratlng,
check fhe opanlng
pressure
of th€ overf lox
l. Attach
the
pressure gauge
as wlth
feed
pressure
ipösuremen+
(Dolnt
B).
2.
Pump
{lih
hand
pump
untll the
overflor
valv6
opens.
Compore
ihe
raadlng In
ihe
gaug€
at +he
openlng rpDenf rlih lhe
ratlng.
fue I
fuel
{
roir
lf
the readlng
ratl
ng, rep lace
one.
Notol lf
the
overf lor vo lve
hand
pump
or
defect I ve.
ln
fhe
gauge
dl{ters
from ihe
the
ov€rf low valve rlth a n9r
prgssure
do€s not
rlse io the
openlng
pressure,
ellher
th€
the
feed
punp
va lves are
9
19
9-11
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