Circuit Pressure Checking; Checking On Circuit Tightness - Alfa Romeo 33 Workshop Manual

1.
U n s c r e w t u b e s @ and 0' fit-
tings and recover the gaskets.
fuel outletl
2. Loosen clamp @ and remove
3. Remou;nt the new filter in order
that the arrow printed on filter body be
positioned towards fuel delivery direc-
t i o n .
4.
ating in opposite order in respect to
1 Filter sup,port clamp
Fuel inlet tube
3
4
F u e l
CHECKING &EL SUPPLY
As for [-33) except for 1.7
electronïc ~ injection engines w h i c h
require the following procedure
COMPLETE CAR

1. Circuit pressure checking

a. Disconnect fuel delivery tube @
downstream from the damper @
b.
T adaptor between damper @ and
tube @ previously disconnected.
c. Detach tube @ from pressure
gauge 0.
This is in order to avoid that any pos-
sible anomalies on idle rotation speed
that fuel pressure value is:
280 i 320 KPa
(2.8 c 3.2 bars; 2.9 + 3.3 Kg/cm')
e. Reconnect tube @ to pressure
gauge; at idle, fuel pressure should
drop of 0.5 bars approximatively and
then rise again when throttle valve Will
leaks.
1 Depression tube
2 Fuel pressure gauge
3 Throb damper
4 Tube delivery to
fuel distribution manifold
00-14
2.

Checking on circuit tightness

a. With pressure gauge plugged, and
with engine on idle,throttlethedelivery
tube immediately downstream from
pressure gauge, de?ecting a pressure
increase up to
400 KPa
(4
(do not let the pressure exceed this
v a l u e )
that fuel delivery tubes and fittings do
not show leaks.
c . I f f u e l p r e s s u r e does not reach
this value and if no leaks are detected
o o e r a t i o n .
CHECKING AND POSSIBLE
ADJUSTMENT
As for (Alfa] except for 1.7 ele-
ctronic injection engines which require
the following procedure
1. Check table s l i d i n g
Checkthattheacceleratorcontrolcable
slides freelv in its sheath
2. Check table c l e a r a n c e
a . W i t h t h e a c c e l e r a t o r p e d a l re-
l e a s e d , check that the accelerator
pedal on control lever has an axial
clearance of G
I
b
If necessary, proceed to adjust the
adjustement clip 0 in order to give
P A 3 3 3 5 0 0 8 8 3 3 0 0