Section 8 · Pages 343–384 (42 pages)
Engine
From the 1952–1954 GMC Truck Models 620–980 Maintenance Manual
Gasoline engine service for the GMC 360, 426 and 503 engines; diesel engines are referred to the separate diesel manual except for tune-up notes. It covers engine identification, maintenance and tune-up with compression and vacuum tests, engine mounting and replacement, engine description, and repair of cylinder head, valves, pistons and rings, timing gears, manifolds, crankshaft damper and water pump, with tune-up and engine specifications.
Read this section free, starting at page 343What this section covers
- Engine identification
- Maintenance and tune-up sequence
- Compression and vacuum gauge tests
- Engine mounting and replacement
- Valves, rocker arms and valve timing
- Pistons, rings and connecting rods
- Manifolds and crankshaft damper
- Engine and tune-up specifications
- Make
- GMC
- Vehicle
- Heavy Duty Trucks, Trucks
- Type
- Service Manual
- Models
- Series 620, 630, 660, 670, 740, 750, 850, 920, 930, 950, 970, 980 (gasoline and diesel, incl. D, F, W prefixes)
- Publication
- Form X5404
- Pages
- 576
What’s inside
Front matter
- Introduction, Model Data and IndexesCover, warranty, title page with the Quick Index tabs, how to use the manual, the model data table of series, wheelbases and engine types for 1952–1954, serial number and parts identification plate locations, the section index and the alphabetical index.pp. 1–10
Maintenance manual
- 1Front Axlepp. 11–22
- 2Rear Axlepp. 23–156
- 3Cab and Bodypp. 157–180
- 4Brakespp. 181–256
- 5Clutchpp. 257–267
- 6Cooling Systempp. 268–285
- 7Electricalpp. 286–342
- 8Enginepp. 343–384
- 11Framepp. 385–388
- 12Fuel Systempp. 389–422
- 13Lubricationpp. 423–448
- 16Steeringpp. 449–476
- 17Transmissionspp. 477–552
- 18Propeller Shaftspp. 553–560
- 19Hubs, Wheels and Tirespp. 561–572





