Cadillac Model B 1905

Cadillac Model & history B 1905

TheModel B was introduced in 1904. The single cylinder Model B remained unchanged from the 1904 Cadillac. The horsepower was now rated at 9 instead of 8.5. In 1904, the optional 1524mm (wide track was not available on the Model B; but this year a 1549mm tread was also made optional by the use of tubular axle to replace the pressed steel axle with standard tread.

Cadillac Model B 1905, 1900s, cadillac, Year In Review

MODEL B IDENTIFICATION & SPECIFICATIONS

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1905 Cadillac rear entrance tonneau

Model No.	Body type	Seating	Price	Weight
Model B	Touring	4	$900	659 kg
Model B	Surrey	4	$900	659 kg

Engine

Engine typeHorizontal with cylinder to rear Number of cylindersone Block constructionCast iron cylinder Water jacketCopper Bore & Stroke127mm x 127 mm (5.00 inch x 5.00 inch) Displacement1.609 litres (98.2 cu. in.) Brake H.P.“Higher than advertised or calculated H.P.” Advertised H.P.9 H.P. ALAM. NACC, SAE H.P.Calculated by identical formulae; ALAM first used formula in 1908 Main bearingsTwo Valve liftersMechanical Engine numbers4200-5000 with EF (1904) CarburetorUpdraft mixer, manufactured by Cadillac

Chassis

Wheelbase1930mm (76 in.) Overall length2845 mm (112 in.) Height1524mm (60 in.) Front/Rear Tread1435mm (56.5 in.) Optional Front/Rear Tread1549mm (61 in.) Wheels12 spoke wood wheels (24 inch) Tire30″ x 3″ clincher Brake typeMechanical Brake wheel locationTwo rear wheels Brake contractionOn inboard drums Weight659 kg (1450 lb)

Drivetrain

TransmissionPlanetary transmission Speeds2 forward, 1 reverse Ratiolow=3:1; high=1:1; rev.=3:1 Controlslow=foot pedal; rev and high=lever to right Clutchlow and reverse=bands; high=discs DriveChain drive DifferentialSpur gear Overall ratio3.1:1 to 5:1 Drivetrain OptionsTen different ratios

Note:

The transmission had two forward speeds (3:1 and 1:1) and one reverse with a disc clutch and chain drive.
The overall ratio was between 3.1:1 and 5:1 depending on the combination of the size of the sprockets.

The drive sprocket had 9 or 10 teeth and the driven sprocket had 31, 34, 38, 41, or 45 teeth.

	9-T Drive sprocket	10-T Drive sprocket
31-T Driven sprocket	3.44:1	3.10:1
34-T Driven sprocket	3.78:1	3.40:1
38-T Driven sprocket	4.22:1	3.80:1
41-T Driven sprocket	4.56:1	4.10:1
45-T Driven sprocket	5.00:1	4.50:1

The lower ratios were used on the runabouts used on smooth, level roads; but the higher ratios were used on hilly roads and for delivery vehicles.
Owners were instructed how to change the sprockets, but it involved the disassembly of the transmission and rear axle — hardly a job for the average motorist.

Options

Bulb Horn. Lights. Rear deck to replace tonneau$10.00

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