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HOLLY MODEL 4150

Carburetor

Illustrated Parts Break Down

106) Sec. Diaph. &
Rod Assy.
 
107) Pump 
Diaphragm Assy.

108) Choke Diaph. 
Assy. Complete

109) Sec. Diaph. 
Link Retainer

110) Air Vent Rod 
Spring Retainer

111) Float Retainer

112) Air Vent Valve 
Retainer

113) Choke Control
Lever Retainer

114) Fast Idle Cam
Plunger Spring

115) Fast Idle Cam
Lever Screw Spring

116) Throt. Stop 
Screw Spring
 
117) Secondary 
Diaphragm 
Spring

118) Pump 
Diaphragm Return 
Spring
119) Fast Idle Cam
Lever Spring

120) Pump Lever
Adj. Screw Spring

121) Air Vent Rod 
Spring

122) Pump Inlet 
Check Ball 
Retainer Spg.
 
123) Choke Spring

124) Float Spring -
Primary & 
Secondary

125) Fuel Inlet Filter Spring 126) Choke Cont. Wire Brkt. Clamp Screw Nut 127) Choke Thermostat Shaft Nut 128) Choke Control Lever Nut 129) Back-up Plate Stud Nut 130) Throt. Lever Ball Nut
131) Dashpot Nut

132) Fuel Valve 
Seat Adjusting Nut

133) Choke 
Thermostat Lever
 Spacer

134) Pump Check 
Ball Weight

135) Pump Cam

136) Fast Idle Cam
Assembly

137) Fast Idle 
Cam & Shaft 
Assembly

138) Choke Rod

139) Throttle 
Connecting Rod
 
140) Air Vent Push
Rod

141) Throt. Lever 
Ball Nut Washer

143) Choke Shaft 
Nut Lock Washer

144) Choke Cont.
Lev. Nut L.W.

145) Back-up Plate
Stud Nut L.W.

146) Throt. 
Connector Pin
Washer

147) Choke Spring
Washer

149) Therm. 
Housing Assy. 
Complete

150) Throttle 
Connector Pin 
Retainer

151) Choke Rod 
Retainer

152) Throt. 
Connecting Rod 
Cotter Pin

153) Choke Cont.
Wire Bracket 
Clamp

154) Thermostat 
Housing Clamp

155) Choke Control
Wire Brkt.

**   Choke Pump 
Rod Spring
 
HOLLY MODEL 4150 Exploded View
156) Dashpot 
Bracket

157) Air Vent Rod 
Clamp

158) Fast Idle Cam
Plunger
 
159) Choke Vacuum
Tube

160) Fuel Transfer 
Tube

161) Filter Screen

162) Dashpot 
Assembly

163) Baffle Plate -
Primary

164) Baffle Plate - 
Secondary

165) Metering Body
Vent Baffle

166) Float Shaft 
Retainer Bracket

167) Fuel Inlet 
Filter

168) Diaphragm 
Lever Assy.

169) Pump 
Operating Lever
170) Pump 
Operating Lever 
Retainer

171) Secondary 
Diaphragm 
Housing

172) Throt. Shaft 
Brg. Pri. & Sec.
(Ribbon)

173)Throt. Shaft
Brg. Pri. & Sec. 
(Ribbon)

174) Throt. Shaft 
Brg. - Pri. (Solid)

175) Plug- Fuel 
Bowl Drain

**  Choke Heat 
Tube

176) Pump Oper. 
Lever Stud

177) Vent Valve 
Screw & L.W.

178) Solenoid 
Bracket Screw 
& L.W.
 
179) Solenoid 
Bracket Screw 
& L.W.
180) Throttle Lever
Extension Screw 

181) Vacuum Tube
Plug

182) Spark Tube
Plug
 
183) Emission Tube
Plug
 
184) Throttle Lever
Extension

185) Cam Follower
Lever
 
186) Tube & "0" 
Ring Assy.

187) Four Way Pipe
Connector
 
188) Vent Valve
Body

189) Fuel Bowl
Filler

190) Metering 
Body Filler

191) Vent Valve 
Spring

193) Throttle Lever
Extension Nut
194) Solenoid 
Bracket Screw Nut

195) Pump 
Operating Lever 
Screw Sleeve

196) Throttle Lever
Extension Lock 
Washer

197) Dashpot Lock
Washer

198) Vent Valve 
Clamp Assy.

199) Solenoid 
Bracket

200) Choke 
Vacuum Hose 
201)Modulator Assy. 202) Solenoid Assy. 203) Cam Follower Retainer 204) "T" Connector 205) Choke Thermostat Lever
1 to 105
 

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

** Not shown