Section 2 · Pages 7–13 (7 pages)

Lubrication and Preventive Maintenance

From the 1951 Cadillac Shop Manual Supplement

The 1951 lubrication program, built on 2,000-mile service intervals. A two-page lubrication chart for all 1951 series shows each fitting and interval, followed by the lubrication schedule, capacities, engine oil viscosity chart, air cleaner service, and notes on the Hydro-Lectric window and seat system, rear axle, Synchro-Mesh and Hydra-Matic transmissions, steering gear and the Series 75 and 86 commercial chassis. It ends with points that need no lubrication and the GM specification numbers of approved lubricants.

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What this section covers

  • Lubrication chart for all 1951 series
  • 2,000-mile lubrication schedule
  • Capacities and tire pressures
  • Engine oil viscosity recommendations
  • Hydro-Lectric fluid level and flushing
  • Transmission, rear axle and steering gear lubricants
  • Approved lubricant specifications
Year
1951
Make
Cadillac
Vehicle
Components and Systems, Hydra-Matic, Passenger Cars, Transmissions
Type
Service Manual, Supplement
Models
Series 61, 62, 60 Special, 75 and 86 Commercial Chassis; 331 cu. in. V-8
Pages
113

What’s inside

Service supplement

  1. Cover, Craftsman Code and ContentsCover, title page of the Cadillac Service Department, the Cadillac Craftsman Code and Certified Craftsman's League, and the section contents list.pp. 1–4
  2. 1General InformationForeword explaining use with the 1950 Shop Manual, a table of the 1951 series with bore, stroke, wheelbase and starting engine numbers, and the locations of engine serial, engine unit, body and Hydra-Matic numbers.pp. 5–6
  3. 2Lubrication and Preventive Maintenancepp. 7–13
  4. 3Bodypp. 14–25
  5. 4Chassis Sheet MetalThe new five-piece front bumper assembly with its removal, disassembly and installation torques, and the hood lock release lever below the grille.pp. 26–26
  6. 5FrameX-type frame description, body bolt locations by body style with torque values, and a frame checking dimension chart for every series.pp. 27–28
  7. 6Chassis SuspensionChanges in spring heights and the relocated eccentric bushing hex end, adjusted from the front with Tool J-4691.pp. 29–29
  8. 7SteeringSteering gear notes, with changes to steering column removal and installation caused by the 1951 instrument panel design.pp. 30–30
  9. 8Rear AxleRear axle gear ratios for each 1951 series (3.36, 3.77 and 4.27 to 1) and their identification marks on the axle case.pp. 31–31
  10. 9BrakesThe new mechanical stoplight switch and self-adjusting slipper anchor on Series 61, 62 and 60 Special, with minor and major brake adjustment and stoplight switch replacement.pp. 32–33
  11. 10Engine MechanicalChanges to the 331 cu. in. V-8 (redesigned pistons, valve guides without counterbores), valve guide installation with Tool J-3066 adapters and piston pin removal and installation with Tool J-3848.pp. 34–35
  12. 11Engine ElectricalA one-page note that 1950 Shop Manual engine electrical information applies to 1951 cars.pp. 36–36
  13. 12Engine Fuel and Exhaustpp. 37–43
  14. 13Engine Cooling; Clutch and Synchro-Mesh TransmissionSections 13 and 14 share one page, each referring to the 1950 Shop Manual for cooling system, clutch and Synchro-Mesh service.pp. 44–44
  15. 15Hydra-Matic Drive: Description and Diagnosispp. 45–54
  16. 15Hydra-Matic Drive: On-Car Service and Removalpp. 55–59
  17. 15Hydra-Matic Drive: Disassembly and Inspectionpp. 60–69
  18. 15Hydra-Matic Drive: Unit Assembly, Pumps, Governor and Servospp. 70–79
  19. 15Hydra-Matic Drive: Control Valve, Parking Brake and Installationpp. 80–87
  20. 16Chassis Electricalpp. 88–93
  21. 17AccessoriesStandard and automatic heating systems with the rear window defogging blower, Signal-Seeking radio fader and foot tuning switch, push-button radio and fog lamp switch locations.pp. 94–94

Specifications, torques and tools

  1. 18Specificationspp. 95–105
  2. 19Torque TightnessesTorque tables by bolt location and size for body, frame and bumpers, suspension, steering, rear axle, brakes, engine, fuel and exhaust, cooling, clutch, Hydra-Matic and sheet metal.pp. 106–108
  3. 20Special Toolspp. 109–113

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