1924 Mason RoadKing

Special features

  • Available in two lengths: 130 inches and 150 inches.
  • Extra large radiator

Available custom-built bodies

  • Combination Stake Body
  • High Front Stake Body
  • Full Stake Body with Sign Boards
  • Heavy Duty Beef and Provision Body
  • Open Express Body
  • Open Express Body with Slat Rack
  • Dump Body with Wood Hydraulic Hoist
  • Panel Side Express Body
  • Full Panel Body
  • Six-Post Top Express Body
  • Six-Post Top Screen Body

Specifications

EngineN.A.C.C. horsepower rating, 25.6. Maximum horsepower, 46. "L" head. Four cylinders cast in block. Bore and stroke, 4" x 5". Removable cylinder head. Valves easily accessible and entirely enclosed, operating in bath of oil vapor.
Engine lubricationForce feed, gear pump. Bayonet type oil gauge which shows not only quantity by quality of oil in crankcase.
Cooling systemPositive water circulation by pump. Extra large radiator. Hand operated fan belt adjustment with very wide belt.
Gasoline supplyRound tank on dash; capacity, 10-1/2 gallons; gravity feed.
CarburetorJohnson float feed automatic type.
ClutchDuplex type with 10" discs. Clutch is removable without disturbing motor or transmission, and is unusually accessible.
TransmissionSliding selective type, three speeds forward and one reverse.
DriveShaft drive with double universal joints and spring cushioned torque arm.
Front axleDrop-forged I-beam with integral yokes. Gilliam tapered roller bearings, extra size all around.
Rear axleFull floating type of Mason design, special heavy duty type. Spiral bevel gears. Gilliam heavy duty bearings extra size.
Steering gearIrreversible, with 18" wheel; easy to operate.
Brakes2-3/4" x 14" service brake, external contracting, operated by foot; 2-3/4" x 14" internal expanding emergency brake operated by hand lever.
SpringsSemi-elliptic. The front springs in the 130" wheelbase chassis are 38" x 2"; rear, 40" x 2-1/2". In 150" wheelbase chassis; front, 38" x 2"; rear, 40" x 2-1/2".
WheelsHeavy duty truck, artillery type; heavy duty demountable rims.
Tires34" x 5" pneumatic cords, all around.
WheelbaseTwo lengths: 130" and 150".
Tread56 inches.
WeightWeight of 130" chassis with hood and fenders, 2950 pounds.
ChassisLength from dash to end of frame, 131-1/4" on 130" wheelbase chassis. Length from dash to end of frame on 150" chassis, 176". Width over all, 66".
Starting, lighting, ignitionAuto-lite. Starting motor has Bendix drive, attached to enclosed flywheel; free from dirt.
Standard equipmentElectric starting and lighting system. Storage battery. Head lights, tail light, dash light, speedometer, ammeter, electric horn, radiator guard, front bumper, complete set of tools, including pump and powerful jack.

References

  • [OMTL] A-24-801-8