Alfa Romeo 33 owners manual page 70

text version of content this owner's manual page from owners manual to the vehicle Alfa Romeo 33, year of production 1983 - 1995:

FUEL SYSTEM IDLE COMPENSATOR DEsCRlPTlON CHECKS AND 3. When thermometer shows speci- fied temperature, verify thermostat INSPECTIONS ‘- The idle compensator actually con- commands, i.e. closing of throttle sists of a thermostat0 that checks valve thus fully closing the cool air HOT AIR INTAKE CLOSING the temperature of the engine intake TEMPERATURE intake. air and as a consequence either opens or closes the throttle valve@ Cool air intake closing temperature 1. Warm up engine bringing it up to located in the air cleaner’s intake steady running. 28 + 32% (82.4+ 89B ’F) duct. The throttle valve mixes the 2. Turn engine off. cool air coming from outside with THERMOSTAT 3. Remove air cleaner cover as well that coming from the hot air intake, as cartridge. REPLACEMENT located on the exhaust gas pipes 4. Inset-t a thermometer next to the 1. Remove air cleaner from engine under the left side cylinder head, or thermostat inside the air cleaner. it works either fully closed orfully (Refer to: Air Cleaner)_ 5. When thermometer shows speci- open. 2. Remove rivets securing air intake fied temperature, verify thermostat to air cleaner body. commands, i.e. opening of throttle 3. Replace air intake as well as valve thus fully closing the hot air thermostat. intake. 4. Connect air intake back to air cleaner body by riveting it. Hot air intake closing temperature 5. Fit air cleaner back to engine 33+ 37°C (91.4+ 98.6”F) (refer to: Air Cleaner). COOL AIR INTAKE CLOSING TEMPERATURE 1 Thermostat 1. With cold engine, remove air 2 Hot air intake Sleeve cleaner cover as well as cartridge. 3 Cool air intakeSieW@ 2. Insert a thermometer next to the 4 Throttle valve thermostat inside the air cleaner. 5 Air cleaner FUEL PUMP CHECKS AND reading is within specified values at INSPECTIONS FUEL PUMP PRESSURE relevant engine rpm. FISPA Pump , 17.7 G29.4 KPa CAUTION: (0.177 + 0.294 bar, at 5000 rpm When disconnecting fuel system 0.18 f 0.30kg/cm2, hoses, use a container with safety lid 2.56 + 4.27 psi) to collect the petrol that is left over in the hoses. SAVARA Pump 17.7 + 29.4KPa (0.177 + 0.294 bar, FUEL PUMP DELIVERY at 6000r-pm 0.18 + 0.30kg/cm2 , PRESSURE 2.56 + 4.27 psi) 1. Disconnect fuel delivery hose 5. If delivery pressure is not within from pump and from carburetor. specified values, replace the pump. 2. Replace same with a T-shaped 6. Disconnect T-shaped hose and hose equipped with cutoff cocks. 3. Connect a pressure gauge to the restore normal operating conditions. hose’s free end. 4. Start engine up and with zero delivery (cock on carburetor side is closed), while keeping gauge at same height as pump, verify that gauge 04-3 May 1983

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