Pages 24–29 (6 pages)

Oldsmobile

From the 1948 GM Product Service Bulletin – February 1948 Issue

Oldsmobile items: a shorted neutral safety switch on early 1948 Hydra-Matic cars, pressure radiator caps that do not interchange between 1946–47 imported and 1948 models, and 1948 Canadian-built new-model features and 3500 and 3700 Series specifications. It includes the campaign change letter and wheel and drum rework procedure for brake drum to wheel interference on 3700 Series cars with 15-inch wheels.

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What this section covers

  • Neutral safety switch short, Hydra-Matic cars
  • Pressure radiator caps #850501 and #840740
  • 1948 features: sealed ignition coil, motor mountings, larger tires
  • 1948 Oldsmobile 3500 and 3700 specifications
  • Brake drum to wheel interference campaign and rework
Year
1946, 1947, 1948
Make
Buick, Chevrolet, Fisher Body, General Motors, GMC, Oldsmobile, Pontiac
Vehicle
Components and Systems, Hydra-Matic, Passenger Cars, Transmissions, Trucks
Type
Service Bulletin
Models
Chevrolet 1000/1200, Pontiac 2000–2700, Oldsmobile 3500/3700, Buick, Chevrolet and GMC trucks 1/2–3 ton
Pages
59

What’s inside

Bulletin

  1. Cover and Training QuestionsThe cover marked Training Copy, February 28th, 1948, and a dealer co-operative service training quiz for mechanics with multiple-choice questions on the items in this issue, from the Chevrolet ignition switch to Hydra-Matic fluid capacity and truck axle bolt torque.pp. 1–3
  2. Chevroletpp. 4–13
  3. Pontiacpp. 14–23
  4. Oldsmobilepp. 24–29
  5. BuickMain bearing knock with full precision bearing inserts on early cars whose bearing caps were too wide, and how to file the caps to fit.pp. 30–31
  6. Bodypp. 32–40
  7. Truckpp. 41–53
  8. Generalpp. 54–59

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