Pages 30–37 (8 pages)

Truck

From the 1947 GM Product Service Bulletin – November 1947 Issue

Truck pages 89–94 for Chevrolet and GMC trucks: the end of a gas tank relocation procedure, speedometer adapter for ACR-520 trucks, GMC hood catch release lever relocation with lock plate part numbers and rework steps, the external glass-bowl carburetor fuel filter for 3-ton and FC-450 trucks, heavier front springs for ACR-522 and ACR-523, and rear axle housing breakage. Pages 91–92 appear twice in the scan.

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What this section covers

  • Speedometer adapter correction
  • Hood catch release lever relocation
  • External carburetor fuel filter
  • Heavier front springs
  • Rear axle housing breakage
Year
1945, 1946, 1947
Make
Buick, Cadillac, Chevrolet, Fisher Body, General Motors, GMC, Oldsmobile, Pontiac
Vehicle
Body and Convertible Tops, Components and Systems, Hydra-Matic, Passenger Cars, Transmissions, Trucks
Type
Service Bulletin
Models
Chevrolet 1000/1200, Pontiac 2000–2700, Oldsmobile 68/78/98, Buick 40/50/70, Cadillac; ACR-520, FC-450 trucks
Pages
41

What’s inside

Bulletin

  1. CoverSeason's Greetings cover of the Product Service Bulletin of November 30, 1947, with the Chevrolet, Pontiac, Oldsmobile, Buick, GMC Truck and Fisher emblems.pp. 1–1
  2. PontiacPontiac pages 43–44 on popping in the muffler on deceleration for all 1946 and 1947 series: spark plug and point gaps, cam dwell, breaker arm spring tension, timing, idle mixture, vacuum leak checks, and a step-by-step manifold gasket leak correction with filed clamp washers and shims. Also refers to the field installation of heavy duty springs.pp. 2–3
  3. OldsmobileOldsmobile pages on 1947 Hydra-Matic three-pin front and rear unit brake and clutch drums (serial numbers, part numbers, interchange rules), the Hydra-Matic instruction sleeve on the sun visor, the temporary type WCD 665-S carburetor on 68, 78 and 98 series with float and throttle cracker settings, and an urgent warning to conserve Hydra-Matic fluid.pp. 4–5
  4. BuickBuick pages 106–108 on brake squeak in 1946 and 1947 models, cured by slotting the brake shoes with overlapping drilled holes, and on heavy duty front and rear springs for 1947 Series 40, 50 and 70, with a chart of regular, optional high, heavy duty and trailer springs giving capacity, rate, part number, color identification and shock absorber valves.pp. 6–8
  5. Body (Fisher Body)pp. 9–29
  6. Truckpp. 30–37
  7. GeneralGeneral pages 19–21: alcohol-type anti-freeze in Oshawa production from October 1, 1947 with starting serial numbers by series, precautions against undercoating mechanical parts, release of the Cadillac supplement to the Owner Service Policy, and why the Flat Rate Manual has no operation for differential side bearings alone.pp. 38–40
  8. RadioRadio page 55: rerouting heater hoses away from ignition wires when an underseat heater causes radio interference on Pontiac 2000 and 2200 series, and checking drain holes on the 1947 Cadillac vacuum aerial.pp. 41–41

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