Cadillac Models & History G 1907
Althoughthe Model L Cadillac Limousine had a planetary transmission and 127mm x 127mm bore and stroke like the single cylinder Cadillac Runabout, the two models were entirely opposite in concept.
The single cylinder was a horseless carriage for the masses, the Model L a Nabob’s throne-on-wheels.
Whether due to the Alanson Brush patent squabble, acute marketing perception, or both; Cadillac came up with a four cylinder design which met the expectations of customers who wanted just a bit more than the best one cylinder car could offer — an inexpensive, easily maintained, long lasting, precision built car — a “single cylinder Cadillac with four cylinders” — the Model G.
I.D. NUMBERS
- Serial numbers on plate on rear of body or on dash (with engine number).
- Engine numbers were stamped on top surface of crankcase — in front of and to the left of number one (front) cylinder.
- Model G engine numbers: 30003-30425 (1907), 30426-30500 (1907-1908).
MODEL G ENGINE
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Description
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Four cylinder, L-head Individual cast iron cyl., copper water jacket |
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Bore & Stroke
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102mm x 114mm |
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Displacement
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3.707 Liters |
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Brake H.P.
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20 hp |
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Block description
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Cylinders cast singly, copper water jackets, detachable combustion valve chamber |
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Main bearings
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Main bearings replaceable without removing crankshaft |
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Valving
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Interchangeable inlet and exhaust valves operated by push rod & roller cam follower on single gear driven camshaft |
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Auxiliaries
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Belt driven fan, water pump, and oiler |
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Lubrication
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Splash lubrication |
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Engine suspension
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Three point engine suspension |
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Cranking
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Clockwise cranking |
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Carburetor
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Float fed carburetor controlled by foot throttle or automatic ring-type governor; jet type carburetor made by Cadillac |
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Transmission type
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Selective sliding gear transmission, independently attached to frame |
MODEL G CHASSIS
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Frame
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Pressed steel frame; two half-elliptic front, two full elliptic rear springs; worm and sector steering mechanism. |
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Clutch
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Leather faced cone clutch |
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Drive
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single universal in drive shaft to bevel drive line rear axle |
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Differential
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spur gear differential |
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Brakes
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foot brake internal, hand brake external on rear drums |
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Tires
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32 x 3.5 |
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Wheelbase
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2540mm |
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Front/Rear Tread
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1422mm |
MODEL G STYLE
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Bodies
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Two door, five passenger Touring and three passenger (single rumble) Runabout, both with wooden dash |
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Price
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$2000 |
MODEL G OPTIONS
Click to supersize
1907 Cadillac Model G
Cadillac-built tops available at extra cost
