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owners manual Alfa Romeo 33
owners manual Alfa Romeo 33 - year of production: 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995 - Alfa Romeo 33 owners manual EN
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from owners manual to the vehicle Alfa Romeo 33, year of production 1983 - 1995:
FUEL SYSTEM
Condition Probable muse Corrective action
Improper engine idling or l Inadequate fuel level in float cham-
Perform same checks and repairs as
progression phases ber or defective starter, ignition or
previously described
overall engine operation as previously
mentioned in connection with diffi-
cult cold starting
l Adjustment of idling adjusting screwsCarefully repeat all relevant adjust-
is incorrect ments as per maintenance instruc-
tions
D Idling jet is dirty, loose or has been Check or replace idling jet
tampered with
Check and thoroughly clean holes
1 Progression holes or channels of
and channels
idling circuit are clogged or have
been tampered with
Tighten as required and, if necessary,
b Air leaks from fitting flanges or other
connections replace relevant worn gaskets
Replace shaft and, if necessary, fit an
b Throttle valve shaft has air leaks
from intakes oversize shaft after having suitably
reamed relevant holes in the body
Free throttle valve
b Throttle valve or relevant controlling
parts are sticky
Overhaul and clean
b Twin carburetor’s second throttle
valve does not work properly
I Inadequate fuel level in float cham- Perform same checks and repairs as
Power shortage (insufficient
previously described
max speed) ber or defective starting, ignition or
compression as previously mentioned
Check, thoroughly clean or replace
m Main jet, power jet, air adjusting
defective parts
screw or diffuser are clogged, loose
or have been tampered with
Clean the filter
b Fuel filter in tank or incarburetor
is clogged
b Air cleaner clogged Clean air cleaner and replace car-
tridge
Check throttle valve and relevant
0 Throttle valve does not fully open
controlling parts
Exhaust system is unusually l Holes in manifolds Replace damaged parts
or excessively noisy l Holes in pipes < Replace damaged parts
Tighten properly as required
l Gas leaks from loose connections
May 1983 04-26
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year of production from: 1983
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Alfa Romeo 33 owners manual
pages 86 - 92
Alfa Romeo 33 owners manual
page 89 / 378
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