Pages 104–109 (6 pages)

Fuel Flow Calibration

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

Recalibrating the fuel meter's economy and power stops whenever the main control diaphragm cover has been removed. It explains why the diaphragm is so sensitive, then describes the J-7090 mercury and water manometer set and mounting brackets for 1957 and 1958 Corvettes and passenger cars. The test procedure reads fuel pressure at a 0.5 in. water signal, with a model table for units from 7014520 to 7017320, stop screw adjustment and test tips. The last page is blank.

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What this section covers

  • Why recalibration is needed
  • Gauge set J-7090 installation
  • Economy and power stop test procedure
  • Calibration table by unit number
  • Ratio stop adjustment and test tips
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