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Home >> Plymouth >> 1981 >> Arrow Pickup Base, Automatic Trans >> Repair and Diagnosis >> Engine Performance >> Fuel Delivery >> HOLLEY Model 2280 2-Barrel >> Overhaul >> Reassembly >> Main Body

Main Body

  1. Install fast idle cam on shaft with steps facing fast idle speed screw. Install retaining clip.
  2. Turn main body upside down. Place throttle body gasket in position. Position throttle body on main body. Install 4 attaching screws and tighten to 30 INCH lbs.
  3. Install accelerator pump discharge check ball and weight. Fill fuel bowl with clean fuel and check ball and seat operation.
  4. Hold ball and weight down with a brass rod. Place accelerator pump plunger in well and operate by hand. If no resistance is felt, check ball is leaking.
  5. Remove weight and leave check ball in place. Use a small drift punch and lightly tap ball against seat to form a new seal. Remove old check ball and discard. Install a new ball and weight.
  6. Perform fuel leak test again. If there is still no resistance felt main body must be replaced. If resistance is felt, check ball is seating correctly.
  7. Install new venturi cluster gaskets. Install venturi cluster in position in main body. Install screws and tighten securely.
  8. Install main metering jets. Use tool outlined during disassembly and install mechanical and vacuum power valves. Take care not to damage power valve needles. Make sure valves are installed in original positions as noted during disassembly.
  9. Install hinge pin in float. Insert hinge pin through slot in float baffle. Tabs in baffle should point down. Place assembly in cradle in main body. Install hinge pin retainer.
  10. Install fuel inlet fitting with new gasket. Adjust float level at this time.
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