Pages 19–31 (13 pages)
Buick
From the 1948 GM Product Service Bulletin – August 1948 Issue
Buick pages 15–28: the modified wheel wrench for Series 70 hub caps, the J-2597 torque ball installing tool for universal joint oil seals, a horn contact adjustment with washers 1325337 and 1858411, and a throttle linkage equalizer bracket installed upside down on Series 40 and 50 engines. Most of the section supplements the Dynaflow Transmission Manual with bolt tightening sequences for the front pump, reaction flange, rear oil pump and primary pump cover, a cross shaft nut torque change, and redesigned valve and servo bodies from transmission A-3000.
Read this section free, starting at page 19What this section covers
- Wheel wrench for Series 70 hub caps
- Torque ball installing tool J-2597
- Horn contact adjustment
- Throttle linkage equalizer bracket, Series 40 and 50
- Dynaflow bolt tightening sequences and torque changes
- Dynaflow valve and servo body design changes
- Low band anchor piston height check with J-2657
- Make
- Buick, Cadillac, Chevrolet, Fisher Body, General Motors, GMC, Oldsmobile, Pontiac
- Vehicle
- Body and Convertible Tops, Components and Systems, Dynaflow, Hydra-Matic, Light Duty Trucks, Passenger Cars, Transmissions, Trucks
- Type
- Service Bulletin
- Models
- Chevrolet 1000/1200, Pontiac 2000–2800, Oldsmobile 3500–3900 and 98, Buick 40/50/70 and 4400–4700, 1700 trucks
- Pages
- 59
What’s inside
Bulletin
- Cover and Service Training ExaminationThe training copy cover, followed by Dealer Co-operative Service Training Examination No. 8 for body men, with multiple-choice questions 71–74 and others on deck lid locks, 1946 windshield wipers and door hinges, the Hydro-Lectric seat adjuster pawl, the 1700 Series truck heater, truck cowl panel cracks and body bolt torque and shims. Answers are found in the 1946–47 Fisher Body Manual and this issue.pp. 1–3
- ChevroletChevrolet pages 34–36: accelerator hinge pins not properly flared on 1948 Series 1000 and 1200 cars before serial 8121113323, and the starter reversing switch discontinued in production at engine 234472. Steps for removing the switch from earlier cars include fitting low tension wire 5288908, replacing the .3 microfarad condenser 1882239 with .2 microfarad condenser 1869704 and grounding the breaker plate, with identification notes for the two condensers.pp. 4–6
- Pontiacpp. 7–14
- Oldsmobilepp. 15–18
- Buickpp. 19–31
- Bodypp. 32–55
- TruckTruck items: speedometer and odometer under-reading on certain 1948 Chevrolet and GMC trucks, corrected with speedometer adaptor kits listed by transmission, and the starter reversing switch discontinued on 216 and 235 engines, referring to the Chevrolet section. The scan of these pages is poor.pp. 56–57
- GeneralGeneral items, largely illegible in this scan: a note on current flat rate manual editions and an item on thumping noises blamed on rear axles that actually come from tires, with a road test check by changing tire pressure before overhauling the axle.pp. 58–59
