Related Manuals for Holley 2280
Summary of Contents for Holley 2280
- Page 1 OCTOBER 1977 SERVICE CONFERENCE CHRYSLER Sl:RVICE & PARTS DIVISION MyMopar.com CORPORATION...
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Page 2: Table Of Contents
Get Ready For Servicing The New Holley 2280 We'll help you get acquainted with this new The Holley 2280 is a new two-barrel carburetor carburetor by identifying all the important for 1978 You'll find it on Federal and Canadian external and internal components as we disas... -
Page 3: Identifying The Major Components
IDEN TIFYING THE MAJOR CHOKE DIAPHRAGM BOWL VENT IDLE MIXTURE AUISTllN T SCREWS 2 IDLE STOP CURB IDLE FAST IDLE CARBURETOR ADJUSTMENT ADJUSTMENT SWITCH PCV VALVE POSITIVE THROTILE TO AIR CWNER HEATED INLET ASSEMBLY AISYSTfl Fig. Holley external identification 2280 MyMopar.com... -
Page 4: External Components
In order to familiarize you with the Holley 2280, six retaining screws and separate the air horn we'll run through a disassembly, pointing out from the main body. valuable service tips. ACTU A TING ARM AND BOWL VENT VALVE LEVER... - Page 5 tion with throttle opening and plays an impor justments section. Incidentally, if you need to tant part in the proper operation of the remove the operating lever, it is held in position accelerator pump and the mechanical power by a shaft which is secured by an "E" clip valve.
- Page 6 Remove the fuel inlet valve from the main body and discard the gasket. The fuel inlet valve on the Holley 2280 has the same relationship to the float assembly as in our other carburetors. Reinstall float assembly with baffle tabs down Fig.
- Page 7 ting any stress on the float arm. When reinstall SPECIAL TOOL HAS SLOTTED BLADE ing, make sure to place the float baffle with its Special tool C-4231 with its slotted blade pro tabs in the down position as you slide the hinge tects the valve needle during power valve re...
- Page 8 NEEDLE LENGTH AND DIAMETER DIFFER Although the power valves appear to be identi cal, the mechanical power valve needle is ac tually 60 thousandths (.060) longer than the needle used on the vacuum power valve. The needles differ in diameter too, according to the calibration used on each carburetor.
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Page 10: External Carburetor
EXTERNAL CARBURETOR SELECT THE SPECIFIED GAUGE With the carburetor reassembled, check the part number stamped on the main body flange and refer to the Service Manual in order to select the right gauges. Remember, with to day's engines - carburetors require especially precise adjustments deliver... - Page 11 tween the choke valve and the air-horn wall. Remember, excessive clearance causes too lean a fuel-air mixture and results in engine stalling. Too little clearance between the gauge and air-horn wall will cause excessively rich mixtures, resulting in loading and in high ex haust emissions during engine warm-up.
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Page 12: Throttle Position Transducer
This is the recommended Fig. 22- Hold throttle in wide open position when checking choke unloader setting procedure for the Holley 2280 and all of our TO AR LEANER HEATED N ET... -
Page 13: Curb-Idle Speed
other 1978 carburetors. Make sure when you reinstall the carburetor on the engine to con nect all the vacuum hoses. Check the label under the hood for the proper hose routing. CURB-IDLE SPEED ADJUSTMENT SET CURB-IDLE SPEED FIRST Set the curb-idle speed first before you adjust the fast-idle speed, the accelerator pump, the bowl vent or the mechanical power valve. -
Page 14: Fast-Idle Speed
vent cover plate and spring. Place a straight USE PROPANE METHOD edge so it is touching the air-horn surface and Check the emission control label for the en is positioned right above the accelerator pump riched RPM specifications and adjust the curb lever as in figure The lever should touch the idle speed screw. -
Page 15: Mechanical Power Valve
HOLLEY 2280 - SMOOTH RELIABLE & The new Holley 2280 carbureto r is designed for maintain good driveability and proper emis smooth and reliable performa nce under all sion control. And let's not overlook one other driving condition s. Knowing this carbureto r very important thing . - Page 16 The first three questions are multiple-choice type. Circle the letter In front of the statement which you INSTRUCTIONS: ©. Questions 4 think is correct. For example, if your choice in question number 1 11 C, put a circle around it, like thrs through 10 are TRUE OR FALSE type.
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