Welcome to Dorians Quadrajet Parts Diagram Page!
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Welcome to Dorians Quadrajet Parts Diagram Page!
The Free Site   |  Hug.me - Get a dinner date this weekend   |  Cheap Web Hosting - starting at $5

Rochester Quadrajet Model E4ME: Exploded View

It is representative of 1981-87 passenger-car Q-jets.

Parts labled below.

Rich stop limit (#227) may not appear on some applications.

Drawing and part description courtesy Rochester Products Division, GM.

Also available in Haynes Techbook #10230 Rochester Carburetor Manual.

Note: This picture shows the "Chevy Style" Quadrajet, with the passenger side exiting fuel inlet. Functionally the same as any other CCC Q-jet besides this. Pre-Computer Q-jets use many of the same pieces, except the electrical connectors, and the modified primary jet/rod setup found in the CCC Q-jets from 1980-1990. Dorian Yeager -------------------------------------------------------------------------------- --------------------------------------------------------------------------------

1 Gasket-air cleaner

5 Gasket-flange

10 Air horn assembly

11 Rivet-cover attaching

11 Rivet-cover attaching

12 Cover-air bleed valve

15 Air bleed valve assembly

16 0-ring-air bleed valve lower

17 0-ring-air bleed valve-upper

30 Screw-secondary metering rod holder attaching

31 Holder-secondary metering rod

32 Rod-secondary metering

35 Lever-choke

36 Screw-choke lever attaching

40 Retainer-pump link

41 Lever-pump

45 Screw assembly-air horn to throttle body

46 Screw assembly-air horn to float bowl

47 Screw-air horn to float bowl (countersunk)

50 Baffle-air horn

55 Vacuum break assembly-primary side (front)

56 Screw-primary side (front) vacuum break assembly attaching

57 Hose-primary side (front) vacuum break

58 Link-primary side vacuum break-air valve lever

60 Plunger-sensor actuator

61 Plug-TPS adjusting screw

62 Screw-TPS adjusting

65 Retainer-TPS seal

66 Seal-TPS plunger

67 Retainer-pump stem seal

68 Seal-pump stem

70 Plug-solenoid adjusting screw

71 Plug-solenoid stop screw

72 Screw-solenoid stop rich mixture

73 Spring-rich authority adjusting

200 Float bowl assembly

201 Gasket-air horn to float bowl

203 Spring- pump plunger

204 Cup-pump plunger

205 Pump assembly

206 Spring-pump return

210 Sensor-Throttle Position (TPS)

211 Spring-sensor adjusting

213 Rod-primary metering

215 Plunger-solenoid

217 Spring-primary metering rod (E2M, E4M only)

221 Screw-solenoid connector attaching

222 Gasket-solenoid connector to air horn

225 Mixture control solenoid assembly

226 Screw-Solenoid adjusting (Lean mixture)

227 Stop-rich limit

228 Spring-solenoid adjusting screw

229 Spring-solenoid return

234 Insert-aneroid cavity

235 Insert-float bowl

236 Hinge pin-float

237 Float

238 Pull clip-float needle

239 Needle-float

240 Seat-float needle

241 Gasket-float needle seat

250 Plug-pump discharge (retainer)

251 Ball-pump discharge

252 Baffle-pump well

255 Primary metering jet assembly

315 Hose-secondary side (rear) vacuum break

316 Tee-secondary side (rear) vacuum break

320 Vacuum break assembly-secondary side (rear)

321 Screw-secondary side (rear) vacuum break ssembly attaching

322 Link-secondary side (rear) vacuum break to choke

330 Rivet-choke cover attaching

331 Retainer-choke cover

335 Electric choke cover and stat assembly

340 Choke housing assembly

341 Screw and washer assembly choke housing to float bowl

345 Screw-choke stat lever attaching

348 Lever-choke stat

350 Intermediate choke shaft, lever and link assembly

352 Fast idle cam assembly

354 Lever-intermediate choke

356 Link-choke

360 Lever- secondary throttle lockout

364 Seal intermedtate choke shaft

370 Nut-fuel inlet

372 Gasket-fuel inlet

375 Filter-fuel inlet

377 Spring-fuel filter

380 Screw-throttle stop

381 Spring-throttle stop screw

400 Throttle body assembly

401 Gasket-float bowl to throttle body

405 Screw assembly-float bowl to throttle body

410 Link-pump

420 Needle-idle mixture

421 Spring-idle mixture needle

422 Plug-idle mixture needle

425 Screw-fast idle adjusting

426 Spring-fast idle adjusting screw

500 Solenoid and bracket assembly

501 Screw-bracket attaching

505 Bracket-solenoid

510 Throttle kicker assembly

511 Bracket-solenoid

512 Nut-throttle kicker assembly attaching

513 Washer-tab locking

515 Idle speed control assembly