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Carburetor - HOLLEY 6510-C 2-Bbl: Overhaul: Reassembly

  1. If the entire choke assembly was removed, position it on the carburetor and install the 3 retaining screws. If the choke diaphragm was serviced, rotate the choke shaft counterclockwise. Insert the diaphragm with a clockwise motion.
  2. Position spring and cover over diaphragm and install the retaining screws. Make certain the fast idle link has been installed properly. Install accelerator pump spring, diaphragm cover and screws.
  3. Install accelerator pump discharge check ball in discharge passage. Check accelerator, needle and seat prior to assembly by filling the fuel bowl with clean fuel. Hold discharge check ball down with a small brass rod and operate pump plunger by hand. If seat is leaking, stake seat using old check ball and a drift.
  4. Use care when staking seat to avoid damaging bore containing the pump weight. After staking old ball, remove and replace with new ball. Install weight ball and recheck for leaks.
  5. Install new gaskets, discharge nozzle and screw. Install primary main well tube and primary high speed bleed. Be sure the correct size is installed in the proper position.
  6. Install secondary main well tube and secondary high speed bleed. Be sure correct jet size is installed in the proper position. Install primary main metering jet. Install secondary main metering jet. Install the needle and seat assembly.
  7. Invert airhorn and insert gauge or drill .480" (12.2 mm) between airhorn and float. Using a small screwdriver, bend tang to adjust dry float level. See FLOAT LEVEL  under ADJUSTMENTS in this article.
  8. Position depth gauge and check float drop. Using a small screwdriver, bend tang to adjust float drop to 1 7/8" (47.6 mm). Position new gasket on airhorn. Install choke rod seal and choke operating rod.
  9. Carefully locate airhorn to carburetor. Install new choke operating rod retainers on choke shaft lever. Install fast idle cam pick-up lever and connect choke operating rod.
  10. Install and tighten the 5 screws attaching airhorn to carburetor. Install solenoid kicker and tighten screws.
  11. Position a new oxygen feedback solenoid gasket on the airhorn. Install new "O" ring seal on oxygen feedback solenoid. Lubricate lightly with White grease and carefully install solenoid into carburetor. Install and tighten mounting screws securely. Route wiring through clamp.
  12. Install vacuum secondary control diaphragm. Install vacuum secondary control solenoid. Install and tighten wire clip mounting screw.
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