HOLLEY Model 2245 2-Barrel: Overhaul: Reassembly

Reverse disassembly procedure, using all new gaskets. Note the following:

1. If the tapered portion of the idle mixture screws is grooved or ridged, install a new screw. Turn screws lightly against their seat with fingers (DO NOT USE A SCREWDRIVER). Back off the number of turns (from the seat) counted at disassembly. Install new limiter caps with tab against stop (screws should be equal number of turns on both sides).
2. Test freeness of choke mechanism in air horn. Choke shaft must float free in bearing bores.
3. When installing vacuum power piston in its cylinder, lock in position by prick punching rim of cylinder in at least three places. Compress piston to be sure no binding exists.
4. Before installing air horn, adjust float setting. Invert air horn so that weight of float only is forcing needle against seat. Measure the clearance between top of float and float stop. Clearance should be.200" (#7 drill) (13/64"). Hold air horn in upright position and check float drop. Bottom edge of float should be parallel to underside surface of air horn. Bend tang on float arm to adjust.
5. Test the vacuum diaphragm before installing on the air horn. Depress the diaphragm stem, then place finger over the fitting to seal the opening. Release the stem. If the stem moves more than 1/16" in 10 seconds, replace the diaphragm.