4 42 FUEL GARBUIIETIDN 7 17 Remove main meteringjets Clganing Ind s lIn 1 18 Remove accelerating pump inlet check ball retainer then turn main body over and catch ball Dirt gum water or carbon contamination in the from pump well carburetor or the exterior moving parts of the car 19 Remove throttle body to main body screws buretor are often responsible for unsatisfactory per from bottom of throttle body fig 4 73 and separate formance For this reason efficient carburetion the two castings depends upon careful cleaning and inspection 20 Remove choke housing cover screws cover The cleaning and inspection of only those parts not gasket and thermostatic spring included in the carburetor overhaul kit are covered 21 Remove choke diaphragm assembly here All gaskets and parts included in the repair kit gg Remove retainers from secondary throttle should be installed when the carburetor is assembled 1ever ee prrmery threune connecting iirrk remove link and the sid gaskets and vests sheuld bs disssrdsd 423 Remove throttle kleker assembly Wash all carburetor parts except accelerating 24 If at is necessary to remove throttle plates or wmv and dsshset ssssmbiyl slsss ssmmsr sherts from throttle h0dy remove threttle plete cial carburetor cleaning solvent If a commerical sol attsehlrrg screws and plates vent is not available lacquer thinner or denatured al 25 Slide secondary throttle shafts and return sehsl may bs uS d springs ent ef throttle bedy Rinse the parts in kerosene to remove all traces of 26 Remove screw from primary throttle shaft and the clhahlhg S l ht then dl Y thsm Wlih chmpressed remove fast idle lever and adjusting screw Slide mf Wipe sll Pam thsf cannot bs lmmelhgd lh Wlvehi throttle shaft and primary throttle share and lever ee sith s sim ssfs div smh Bs we sll dst z m ssr semhlyout Og threttle plete bon and other foreign matter are removed from all 27 Remove primary throttle lever assembly harm retainer then slide lever and springs offshaft Fssss Chmpmssed ah through ah passages hl the 28 If it is necessary to remove fast idle cam or cahhureml bushing carefully press bushing out of choke housing snd b shi ss l m cAu1 1oNr Do not use rr wire men to ezeerr any uirtx or lz drill or wire to clean out any openings or NOTE he ttlis me rrd on sf slis m M i e r ee A ree or ee breuk without proper support to the column during I H t I h in the calibration of bushing removal or installation Make sure all holes in UW ie m Q m Im wg C any g theeurburctor new gaskets have been properly punched and that no foreign material has adhered to gaskets Gasket sur Check the choke Shaft for grooves wear and eXceS gif mus be Clean and flat and free of mcks OT sive looseness or binding Inspect the choke plate for nicked edges and ease of operation and free it if neces PRIM PRIMARY THRDTTLEZ sary Make sure all carbon and foreign material hav Ah been removed from the automatic choke housing an Iqigglg if i ga lxn LEVER the piston Check the throttle shafts in the bores for w t I excessive looseness or binding and check the throttle e W Wr plates for burrs which prevent proper closure Inspect Q Wl the main body throttle body air horn choke housing E gv sr V Y and thermostatic spring housing for cracks Replace V I hx O0 the float if the arm needle contact surface is grooved r H i If the floats are serviceable polish the needle contact l surface of the arm with crocus cloth or steel wool Re e Y iglih l hilis ii place float shafts if worn Replace all screws and nuts gf J that have stripped threads Replace all distorted or I broken springs Inspect all gasket mating surfaces for sscounmv nicks and burrs Repair or replace any parts that have T R TT E i adama ed asketsurface swan O g g U F mQ T8 J I SECONDARY r Z f Z s m Assembly Vstves rz nsrunu svnmcs 21 r 1 If throttle plates and shafts are removed slide CHOKE tArHRAGM 60287 primary throttle return spring coiled elockwise on primary throttle shaft flat milled and slide shaft into Fill A 73 Tlmmlg Bndy Bg m Vlgw primary shaft holes mixture needle side of body