Section 6 · Pages 24–31 (8 pages)

Engine

From the 1946 Buick Shop Manual Supplement

Engine changes for 1946, when compound carburetion was dropped. The Series 50 engine is rated 110 hp and the Series 70 144 hp at 3600 rpm. It covers Lubrited cylinder bores, the new cylinder head and gasket water passages, anodized aluminum pistons and piston fitting with feeler gauges, flared oil pipe fittings, crankcase ventilation, Series Flow cooling, the exhaust manifold valve thermostat, Stromberg AAV-16/AAV-26 and Carter WCD 608S/609S carburetor calibrations with pump stroke and pump jet adjustment, and the clutch release yoke boot.

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What this section covers

  • Lubrited cylinder bores and cylinder head gasket
  • Pistons, pins and rings; fitting pistons
  • Engine oiling and crankcase ventilation
  • Series Flow cooling and exhaust manifold valve thermostat
  • Stromberg AAV-16 and AAV-26 carburetor calibrations
  • Carter WCD 608S and 609S pump stroke and pump jet adjustment
  • Choke lower heat pipe
  • Clutch release yoke and boot
Year
1946
Make
Buick
Vehicle
Passenger Cars
Type
Service Manual, Supplement
Models
Special Series 40, Super Series 50, Roadmaster Series 70 (Models 41, 46-S, 51, 56-S, 56-C, 59, 71, 76-S, 76-C)
Publication
BPS 1.28
Pages
69

What’s inside

Shop manual supplement

  1. 0Contents and General Informationpp. 1–9
  2. 1BodyThe new cable-drive windshield wiper used on all 1946 series: motor and driver assembly on the dash, cable tensioner adjustment and installation. Notes that the Hydro-Lectric power top, windows and seat on Models 56-C and 76-C are covered in form BPS 1.29.pp. 10–11
  3. 2Frame and BumpersFrame bolt-hole spacing for the 1946 lower control arm shaft and frame interchangeability with 1942, front and rear bumper differences by series, and the hinged rear bumper section on the Model 59 Estate Wagon.pp. 12–13
  4. 3Chassis SuspensionEccentric upper pivot pins with rubber seals, the threaded lower control arm shaft and steel bushings with service package part numbers, shock absorber calibrations for Series 40-50 and 70, and chassis and overload spring part numbers by model.pp. 14–15
  5. 4Rear Axlepp. 16–21
  6. 5Brakes1946 brakes match 1942 except for molded primary shoe lining; advice on replacing primary shoes in pairs from the same carton.pp. 22–23
  7. 6Enginepp. 24–31
  8. 7Transmission and Universal JointLeather seal in the Series 40-50 torque ball and the speedometer gear tooth combinations for standard and optional high wheels by series and axle ratio.pp. 32–33
  9. 9SteeringCaster and camber adjustment with the eccentric upper pivot pins and a new service wheel alignment chart for 1942 and 1946 models, giving toe-in, camber, caster, king pin inclination and toe-out on turns.pp. 34–35
  10. 10Wheels and Tirespp. 36–39
  11. 11Chassis Sheet Metalpp. 40–43
  12. 12Electrical SystemStarter vacuum switch timing on Carter carburetors, AC 48 spark plugs, ignition coil and the silver-contact ignition switch for convertibles, flywheel timing marks and standard timing (4 degrees Series 40-50, 6 degrees Series 70), the rear license lamp and Model 59 stop and tail lamp wiring.pp. 44–46
  13. 12Radiopp. 47–55
  14. 14Accessoriespp. 56–61
  15. 15Tightening SpecificationsA new torque table in foot-pounds for 1942 and 1946 models, replacing the 1942 figures, covering engine, front suspension, steering, rear axle, shock absorber, brake and body bolts.pp. 62–63
  16. 16Lubricationpp. 64–68
  17. IndexAlphabetical subject index with section page numbers.pp. 69–69

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