Section 13 · Pages 26–35 (10 pages)

Repair of Oil Control Unit Components

From the 1950 Cadillac Shop Manual – Hydra-Matic Section

Overhaul of the front servo (with 4-3 downshift valve) and rear servo with accumulator and compensator pistons, giving piston and ring clearances and spring free lengths and loads. Then the front oil pump and cover, with gear clearances and seal installation using J-1776A, the rear oil pump and governor, including riveting the drive gear pin with J-2183 and the G-2 valve, and the valve body with its shifter valves, regulator plugs, throttle and compensator valves keyed to the Fig. 221 parts list.

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What this section covers

  • Front servo overhaul
  • Rear servo overhaul and spring specifications
  • Front oil pump overhaul
  • Rear oil pump and governor overhaul
  • Valve body disassembly, inspection and assembly
Year
1950
Make
Cadillac
Vehicle
Components and Systems, Hydra-Matic, Passenger Cars, Transmissions
Type
Service Manual
Models
Series 61, 62, 60S and 75 passenger cars; Series 86 commercial chassis
Pages
42

What’s inside

Hydra-Matic Drive (Section 14)

  1. Contents and Cross SectionThe Section 14 table of contents listing every note with its book page, followed by the Fig. 169 cross section of the Hydra-Matic Drive with numbered parts.pp. 1–2
  2. 1Hydra-Matic Diagnosispp. 3–8
  3. Fluid, Linkage and Band Adjustmentspp. 9–12
  4. Fluid Coupling Leaks and Transmission RemovalLocating and correcting leaks at the flywheel, torus cover, front oil seal and front pump cover (Fig. 181), and the first steps of removing the Hydra-Matic from the car with hoist J-1636B and engine support J-3068; the removal steps continue on the next page.pp. 13–13
  5. 11Disassembly of Transmissionpp. 14–18
  6. 12Repair of Drive Line Componentspp. 19–25
  7. 13Repair of Oil Control Unit Componentspp. 26–35
  8. 14Inspection of Miscellaneous Transmission PartsCleaning and checking the transmission case oil passages, with the Fig. 227 passage chart, and inspection of the front and rear bands; the end of valve body assembly is on the same page.pp. 36–36
  9. 15Assembly of Transmissionpp. 37–40
  10. Installation in Car and Manual ControlsInstalling the torus members and the transmission in the car, with torus cover dowel alignment, bolt torques and refill with about 12 quarts, then removal, disassembly, assembly and installation of the steering column manual controls, selector lever and neutral switch.pp. 41–42

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