Manual page with Holley carburetor drawing, Motorcraft ID tag fi…

EXTERNAL BOWL VENT (CALIFORNIA ONLVl SECONDARY FUEL. BOWL SECONDARY THROTTLE OPERATlNG DIAPHRAGM THROTTLE BODY PART NO PREFlX lNDlCATES NEW DESIGN PART NO. SUFFIX ASSEMBLY DESIGN CHANGE CODE YEAR MONTH EXAMPLE JULY (G) 21. 1981 DAY Fig. 4.18 Typical carburetor identification tag (Sec 2) 5 Start the engine and allow the engine to achieve normal operating temperature. 6 Ensure that the ignition timing is set as described in Chapter 1. 7 On a vehicle with a manual shift transmission, the idle should be set with the transmission in Neutral. On vehicles with automatic transmissions, the idle setting is made with the transmission in Drive. 8 Make sure the choke plate is fully opened. 9 Make sure the air conditioning is turned off. 10 Use a tachometer of known accuracy and connect it to the vehicle according to the manufacturers instructions. 1 1 Adjust the engine curb idle rpm to the specifications given on the Emissions Control Information label. Make sure the air cleaner is installed for this adjustment. 12 It so equipped, turn the solenoid assembly to obtain the specified curb idle rpm with the solenoid activated. 13 Set the automatic transmission to Neutral. 14 Disconnect the power to the solenoid lead wire at the connector. 15 Adjust the carburetor throttle stop screw to obtain 500 rpm in Neutral. 16 Connect the solenoid power wire and open the throttle slightly by hand. The solenoid plunger should hold the throttle lever in the X1nd6d DOSition and move the rpm range up. Fast idle adjustment 17 The fast idle adjusting screw is D'OVidEd to maintain engine idle hanging up deposits of yarn used to prevent sediment 3 Start the vehicle. If voltmeter to check that the thermostat housing has voltages to the temperature sensing swuh no voltage is present, check the problem. . 4 Some automatic chokes will come:- spring housing which controls the chattel housing, loosen the three clampaeraw compensate for poor choke operatian by varyln fh . the specified spot. it the choke is not operati inside the husing may be worn or broken or at in the choke system. lf this situation exists; the need to be replaced. ' 5 Allow the vehicle to completely cool (at W n preferably overnight) and check {or proper operam Chapter Iggy-5,7 ., :Ji