Section 69 · Pages 740–744 (5 pages)

Engine Tune-Up

From the 1970 Buick Chassis Service Manual

Engine tune-up for all series: fuel and air cleaner specifications, a tune-up chart giving spark plug type, gap, dwell, breaker gap, initial timing and curb idle for 250, 350 and 455 engines, a distributor advance chart, and a 21-step procedure. Includes the compression test with the 75 percent rule, the limit chart, and valve lash adjustment for hydraulic lifters.

Read this section free, starting at page 740

What this section covers

  • Tune-up chart by engine
  • Distributor advance chart
  • Compression test and limit chart
  • Valve lash adjustment
  • Step-by-step tune-up procedure
Year
1970
Make
Buick
Vehicle
Buick Special and Skylark, Passenger Cars, Riviera
Type
Service Manual
Models
Special, Skylark, GS, GS 455, LeSabre, Wildcat, Electra 225, Estate Wagon, Riviera (43-49000 series)
Pages
1,430

What’s inside

Front matter

  1. Title Page, Contents and IntroductionTitle page and table of contents listing the groups and their first page numbers, the Buick Motor Division copyright page, and an introduction explaining how groups, sections, divisions and paragraphs are numbered, plus special tool references and how to find information.pp. 1–5

Chassis service groups

  1. 00General Information, Maintenance and Lubricationpp. 6–25
  2. 10Windshield Wiper and Washer Systempp. 26–69
  3. 12Heater Systempp. 70–95
  4. 13Heater and Air Conditioner Systempp. 96–244
  5. 20Frame and Body Mountingspp. 245–266
  6. 30Front Suspension and Front End Alignmentpp. 267–303
  7. 40Rear Suspension, Automatic Level Control, Propeller Shaft and Differentialpp. 304–425
  8. 50Brakespp. 426–519
  9. 60Engine Mechanicalpp. 520–610
  10. 64Engine Fuel System, Fuel Pumps and Carburetorspp. 611–676
  11. 65Cruise MasterDescription, operation and installation of the driver-operated Cruise Master speed control, engaged by a switch at the end of the directional signal lever. Covers engagement, disengagement, speed adjustment and override, the green cruise lamp, and installation drawings for the 43-44000 series.pp. 677–681
  12. 67Controlled Combustion Systempp. 682–699
  13. 68Engine Electrical: Generating, Starting and Ignitionpp. 700–739
  14. 69Engine Tune-Uppp. 740–744
  15. 71Clutchpp. 745–757
  16. 72Manual Transmissionspp. 758–815
  17. 73Shift Linkage Adjustmentspp. 816–832
  18. 75Turbo Hydra-Matic 350 Automatic Transmissionpp. 833–937
  19. 76Turbo Hydra-Matic 400 Automatic Transmissionpp. 938–1034
  20. 80Fuel Tank and Exhaust Systemspp. 1035–1062
  21. 90Steeringpp. 1063–1134
  22. 100Wheels and Tirespp. 1135–1154
  23. 110Chassis Sheet Metalpp. 1155–1194
  24. 120Chassis Electrical and Instrument Panelpp. 1195–1335
  25. 129Radio and Stereo Tape Playerpp. 1336–1352
  26. 130Radiators and Grillespp. 1353–1370
  27. 140Bumperspp. 1371–1392
  28. 150Accessoriespp. 1393–1420

Tables and index

  1. Decimal Equivalents, Drill Sizes and Alphabetical IndexReference tables for decimal equivalents, number and letter drill sizes with tap sizes, followed by the alphabetical index listing each subject with its group and page number, such as Air Conditioner, Alignment, Battery and Belt Tensions.pp. 1421–1430

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