Pages 56–72 (17 pages)

Fuel Injection: Fundamentals of Operation

From the 1956–1960 Chevrolet Corvette Chassis Service Operations: Engines and RPO Equipment

Theory of the Chevrolet continuous-flow port fuel injection used on Corvette and passenger car 283 V-8s since 1957. It explains the advantages over carburetion (fuel distribution, ram-tube air flow, mixture heating, horsepower) and the three main assemblies: fuel meter, air meter and intake manifold. It describes the gear pump, fuel valve and spill plunger, fuel control linkage and ratio lever, and nozzles. The section ends with idle, acceleration, power enrichment, starting and the three stages of cold enrichment.

Read this section free, starting at page 56

What this section covers

  • Advantages of fuel injection
  • Fuel meter, gear pump and spill plunger
  • Fuel control linkage and nozzles
  • Air meter and idle air
  • Acceleration and power enrichment
  • Starting by-pass and cold enrichment stages
Year
1956, 1957, 1958, 1959, 1960
Make
Chevrolet
Vehicle
Components and Systems, Corvette, Fuel Injection, Passenger Cars
Type
Service Manual
Models
Corvette V-8: single and dual four-barrel, Fuel Injection (7014800, 7014900, 7017200, 7017300, 7017310)
Pages
109

What’s inside

Front matter

  1. Foreword and Title PageThe foreword explains why the booklet was written, how its two sections are organized and which passenger car shop manuals to use alongside it. It says the booklet covers Corvettes from 1956 on. The title page names it 1956–1960 Corvette Chassis Service Operations.pp. 1–2

Tuning the Corvette engine

  1. Tune-Up: Mechanical Checks and Adjustmentspp. 3–18
  2. Tune-Up: Instrument Check-Outpp. 19–26
  3. Additional Checks and AdjustmentsTests to use when the tune-up turns up a problem or the owner has a specific complaint. The cylinder balance test grounds pairs of cylinders by firing order and compares rpm and vacuum. The fuel pump test checks volume and pressure. The cooling system pressure test looks for internal and external leaks.pp. 27–29

Regular Production Options

  1. Heavy-Duty Brakes and Suspensionpp. 30–33
  2. Close-Ratio Transmission and Engine ConstructionThe close-ratio three-speed transmission, which starts at the foot of the previous page, with its 2.2, 1.31 and 1-to-1 ratios and clutch gear removal sequence. It is followed by how each Corvette engine differs from the passenger car V-8: chrome-plated rings, five-quart oil pan, notched or domed pistons, and the special-cam engines' bearings and balancing. Valve clearance settings continue at the top of the next page.pp. 34–34
  3. Corvette 4-Speed Transmissionpp. 35–48
  4. Positraction Rear Axlepp. 49–55
  5. Fuel Injection: Fundamentals of Operationpp. 56–72
  6. 7014800 Fuel Injection Service Procedurespp. 73–95
  7. 7014900, 7017300, 7017200 and 7017310 Fuel Injectionpp. 96–103
  8. Fuel Flow Calibrationpp. 104–109