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Home >> Mercury >> 1982 >> Capri Black Magic >> Repair and Diagnosis >> Engine Performance >> Fuel Delivery >> MOTORCRAFT Model 2150 2-Barrel >> Overhaul >> Disassembly >> Main Body

Main Body

  1. Remove choke pulldown diaphragm retaining screws. Remove diaphragm link circlip and pulldown diaphragm. Remove fast idle cam retainer. Remove choke cap as previously described. Remove choke housing retaining screws, choke housing and gasket. Remove fast idle cam and rod from fast idle cam lever.
  2. Remove choke lever retaining screw and washer. Disconnect choke control rod from choke lever. Remove choke lever and fast idle cam lever from choke housing.
  3. Pry float shaft retainer from fuel inlet seat with a screwdriver. Remove float, float shaft retainer and fuel inlet needle assembly. Remove retainer and float shaft from float lever. Remove filler block from fuel bowl (if equipped).
  4. Remove fuel inlet needle, seat, filter screen and main jets. Remove booster venturi screw (accelerator pump discharge), booster venturi, metering rod assembly and gasket. Remove filter screen from booster venturi screw. Turn main body upside down and catch accelerator pump weight and ball.
  5. To disassemble metering rod assembly, remove lift spring retaining clip and spring. Do not remove metering rod hanger from lift rod. On adjustment limiting carburetors, remove roll pin attaching accelerator pump link to pump housing with punch and small hammer. Remove pump link and rod assembly.
  6. On all other carburetors, remove accelerator pump operating rod from overtravel lever and retainer by pressing ends of retainer together, while at the same time, pressing rod away from retainer until free. Remove rod and retainer.
  7. Remove accelerator pump cover screws. Remove bowl vent bell crank and bracket, accelerator pump cover, diaphragm assembly and spring. If necessary to remove Elastomer valve, grasp firmly and pull out. Remove enrichment valve cover and gasket. Using box wrench or 8-point socket, remove enrichment valve. Discard gasket.
    NOTE: If tip of Elastomer valve broke off, make sure it is removed from fuel bowl. Elastomer valve must be replaced whenever it is removed.
  8. To remove idle mixture screw limiter caps, support area under cap. Using a punch, lightly tap tang on cap and tap cap forward. Remove caps, idle mixture screws, springs and plugs. If required, remove nut and washer securing fast idle adjusting lever to throttle shaft and remove lever.
  9. If required, remove idle screw and spring from fast idle adjusting lever. Remove throttle positioner (if equipped). If required to remove throttle plates, mark each plate with its corresponding bore for reassembly reference. File off staked portion of throttle plate screws and remove throttle plates. Remove any burrs on throttle shaft. Slide throttle shaft out of main body; catching the mechanical high speed cam (located between throttle plates).
  10. On altitude compensated carburetors, remove 4 attaching screws and remove aneroid and valve assembly with gasket from main body. Remove 3 aneroid-to-valve screws. Separate aneroid, gasket and valve.
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