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HOLLY MODEL 4150

Carburetor

Illustrated Parts Break Down

1) Choke Plate
  
2) Choke Shaft
Assembly

3) Fast Idle Pick-up Lever
4) Choke Hsg. Shaft & Lev. Assy. 5) Choke Control Lever
6) Fast Idle Cam Lever
7) Choke Lev. & Swivel Assy.
8) Choke Therm. Lev., Link & Piston Assy.
9) Choke Rod Lev. & Bush. Assy. 10) Choke Plate Screw 11) Therm. Housing Clamp Screw 12) Throttle Stop Screw
13) Choke Lev. Assy.Swivel Screw
14) Choke Diaph.
Assy., Brkt. Scr.
& Lock Washer

15) Air Vent Clamp
Screw & L.W.

16) Sec, Diaph. Assy. Cov. Scr. & L. W. 17) Fuel Bowl to Main Body Screw Primary 18) Fuel Bowl to Main Body Screw Secondary 19) Diaph. Lev. Adjusting Screw 20) Throt. Body Screw & Lock Washer 21) Diaph. Hsg. Assy. Scr. & Lock 22) Choke Hsg. Screw & L.W. 23) Dashpot Brkt. Scr. & L.W. 24) Fast Idle Cam Lever Adj. Screw 25) Fast Idle Cam Lev. Scr. & L.W.
26) Diaph. Lever
Assy. Scr. & L. W.

27) Throt. Plate
Screw Primary

28) Throt. Plate
Screw Secondary
 
29) Pump Lever
Adj. Screw
 
30) Pump
Discharge Nozzle
Screw
 
31) Fast Idle Cam
Plate Screw & L. W.
 
32) Choke Cont.
Wire Brkt. Clamp
Scr.
 
33) Pump Cam
Lock Screw
 
34) Fuel Pump
Cov. Assy. Scr.
& L. W.
 
36) Throt. Body
Screw - Special
 
37) Fuel Valve
Seat Lock Screw
 
38) Float Shaft
Brkt. Scr. & L W.
 
39) Spark Hole
Plug
40) Fuel Bowl Plug

41) Fuel Level
Check Plug

42) Fuel Level
Check Plug
Gasket

43) Fuel Inlet
Fitting Gasket

44) Fuel Valve
Seat Gasket

45) Fuel Bowl Screw Gasket 46) Sec. Diaph. Housing Gasket 47) Choke Housing Gasket 48) Power Valve Body Gasket 49) Choke Therm. Housing Gasket 51) Fuel Valve Seat Adj. Nut Gasket 52) Fuel Valve Seat Lock Scr. Gasket 53) Thirst. Body Screw Gasket
 
HOLLY MODEL 4150 Exploded View
54) Pump Discharge
Nozzle Gasket
 
55) Metering Body
Gasket Primary

56) Metering Body
Gasket Secondary

57) Fuel Bowl
Gasket

58) Throttle Body
Gasket

59) Fuel Bowl Plug
Gasket

60) Fuel Inlet Filter
Gasket

61) Flange Gasket

62) Throttle Plate -
Primary

63) Throttle Plate - Secondary 64) Throt. Body & Shaft Assy. 65) Fuel Line Tube 67) Idle Adjusting Needle
68) Float & Hinge
Assembly Primary

69) Float & Hinge
Assy Secondary

70) Float Hinge
 Adapter
 
71) Float Lever
Shaft

72) Fuel Inlet Valve
& Seat Assy

73) Pump Lever
Adj. Scr. Fitting

74) Fuel Inlet
Fitting

75) Fuel Transfer Tube Fitting 76) Fuel Inlet Tube & Fitting Assy 77) Pump Discharge Nozzle 78) Main Jet - Primary 79) Main Jet Secondary 80) Bowl Vent Valve
81) Air Vent Valve
 
82) Pump
Discharge Needle
Valve

83) Power Valve
Assy Primary

84) Power Valve
Assy - Secondary
 
85) Fuel Line Tube
"O" Ring Seal

 87) Fuel Valve
Seat "O" Ring Seal

88) Idle Needle
Seal

89) Choke Rod
Seal

90) Diaphragm
Hsg. Check Ball
- Sec.

91) Pump Inlet
Check Ball or
Valve

92) Throt. Lev.
Ball

93) Pump
Discharge Check
Ball
94) Choke Diaph.
Assy. Link

95) Sec. Diaph.
Housing Cover

96) Back-up Plate
& Stud Assy.
 
97) Fast Idle Cam
Plate

99) Air Vent Cap

100) Choke Hsg.
& Plugs Assy.

101) Main 
Metering Body &
Plugs Assy.
Primary

102) Main
Metering Body &
Plugs Assy. -
Secondary

103) Fuel Pump
Cover Assy

104) Fuel Bowl
& Plugs Assy.
Primary

105) Fuel Bowl
& Plugs Assy.
Secondary

 106 to 205
 

The illustrated parts break down illustrates individual part placement in the assembly.