Cadillac Models & History 1907
Cadillac offered four models for 1907:
Model G, Model H, Model K, and Model M
| Model G |
Model H |
Model K |
Model M |
1907 CADILLAC MODEL G
MODEL G ENGINE
| Description |
Four cylinder, L-head Individual cast iron cyl., copper water jacket |
| Bore & Stroke |
4 x 4.5 in. (101.6mm x 114.3mm) |
| Displacement |
226.2 cu. in. (3.707 liters) |
| Brake H.P. |
20 hp |
| Engine description |
Cylinders cast singly, copper water jackets, detachable combustion valve chamber; main bearings replaceable without removing crankshaft; interchangeable inlet and exhaust valves operated by push rod & roller cam follower on single gear driven camshaft; belt driven fan, water pump, and oiler; splash lubrication; three point engine suspension; clockwise cranking. |
| Carburetor |
Float fed carburetor controlled by foot throttle or automatic ring-type governor; jet type carburetor made by Cadillac |
| Transmission type |
selective sliding gear transmission, independently attached to frame |
MODEL G CHASSIS
| Frame |
Pressed steel frame; two half-elliptic front, two full elliptic rear springs; worm and sector steering mechanism. |
| Clutch |
Leather faced cone clutch |
| Drive |
single universal in drive shaft to bevel drive line rear axle |
| Differential |
spur gear differential |
| Brakes |
foot brake internal, hand brake external on rear drums |
| Tires |
32 x 3.5 |
| Wheelbase |
100″ |
| Front/Rear Tread |
56″ |
MODEL G STYLE
| Bodies |
Two door, five passenger Touring and three passenger (single rumble) Runabout, both with wooden dash |
| Price |
$2000 |
MODEL G OPTIONS
| Cadillac-built tops available at extra cost |
HISTORICAL NOTES
- Although the Model L Cadillac Limousine had a planetary transmission and 5″ x 5″ 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.
- 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).
1907 CADILLAC MODEL H
MODEL H ENGINE
| Engine |
Vertical, inline, L-head four cylinder, individual cast iron cylinders with copper water jacket |
| Bore & Stroke |
4.375 x 5 in (111 mm x 127 mm) |
| Displacement |
300.7 cu. in (4.927 liters) |
| Brake H.P. |
30 hp |
| Engine description |
Five main bearings, mechanical lifters |
| Carburetor |
Throttled, float feed, jet type made by Cadillac |
| Transmission type |
Planetary transmission |
| Speeds |
Three forward and one reverse |
MODEL H CHASSIS
| Controls |
Right hand drive with controls to the right |
| Clutch |
Twin disc in flywheel, disc and 3 bands on transmission |
| Drive |
shaft |
| Differential |
Live axle, bevel drive, bevel differential |
| Brakes |
Mechanical on two wheels — service and emergency on rear drums |
| Wheels |
24″— 12 spoke wood artillery wheels |
| Tires |
32 x 4 |
| Wheelbase |
102″ |
| Front/Rear Tread |
56.5″ |
| Weight of 2-door Touring |
2400 lb (1091 kg) |
| Weight of 2-door Coupe |
2500 lb (1136 kg) |
| Price of 2-door Touring—5-passenger |
$2500 |
| Price of 2-door Limousine—6-passenger |
$3600 |
| Price of Runabout—2-passenger |
$2400 |
| Price of 2-door Coupe—2-passenger |
$3000 |
| Calendar year sales and production |
509 (1906-1908) |
| Model year sales |
509 (1906-1908) |
MODEL H OPTIONS
| Bulb horn |
| Lights |
| Touring top ($125.00) |
| Runabout top ($50.00) |
HISTORICAL NOTES
- The serial number was located on the plate on the rear of body or on dash (with the engine number).
- Engine numbers were stamped on top surface of crankcase — in front of and to the left of number one (front) cylinder.
- Engine No.: 10201-10709 (1906-1908).
- Introduced January, 1906
- Same notes as 1906 Model H except body lines of Touring was simplified and five passenger Limousine offered
1907 CADILLAC MODEL K
MODEL K ENGINE
| Engine |
Single cylinder, horizontal, with cylinder to rear, cast iron cylinder with copper water jacket, two main bearings, mechanical valve lifters |
| Bore & Stroke |
5″ x 5″ (127mm x 127mm) |
| Displacement |
98.2 cu. in. (1.609 liters) |
| Brake H.P. |
10 hp |
| Carburetor |
Updraft mixer, manufactured by Cadillac |
MODEL K CHASSIS
| Features |
- Same as 1906 except muffler much shorter with outlet at front rather than side
- oiler drive changed from cam to pulley and belt
- Engine/transmission drip pan added
- Runabout bodies remained the same as 1906 but front fenders were changed
— nose of fender was now flattened and an inside skirt was added (early 1907 catalogs still showed the canted fender).
- For the first time, a factory-installed-only Victoria style top was offered, as well as a buggy top.
|
| Tires |
30 x 3 |
| Wheelbase |
74 in. |
| Overall length |
9′ 2″ |
| Height |
5′ 6″ |
| Front/Rear Tread |
56″ (61″ opt) |
| Weight |
1100 lb (550 kg) |
| Price of Victoria Runabout |
$800 |
| Notes |
- Prices on Cadillacs varied somewhat in different catalogs and ads,
possibly due to severe economic crisis in 1907.
- Serial numbers on plate on rear of body (with engine number).
- Engine numbers were stamped in three places:
- Top right edge of cylinder flange, near the water outlet
- Top surface of left, front mounting leg
- On a plate at the rear of body with the serial number
|
MODEL K OPTIONS
| Bulb horn; lights. Rubber top with sides & storm apron |
$30.00 |
| Leather top with sides & storm apron |
$50.00 |
1907 CADILLAC MODEL M
MODEL M ENGINE
| Engine |
- Single cylinder, horizontal, with cylinder to rear
- cast iron cylinder with copper water jacket
- two main bearings
- mechanical valve lifters
|
| Bore & Stroke |
5″ x 5″ (127mm x 127mm) |
| Displacement |
98.2 cu. in. (1.609 liters) |
| Brake H.P. |
10 hp |
| Engine description |
Two main bearings, mechanical valve lifters |
| Carburetor |
Updraft mixer manufactured by Cadillac |
| Transmission |
Planetary |
| Gears |
3 forward, 1 reverse |
| Gear ratios |
Low: 3:1; High: 1:1; Reverse: 3:1 |
| Drive |
Chain |
| Differential |
Spur gear |
| Overall ratio |
3.1:1 to 5:1 depending on drivetrain option |
MODEL M CHASSIS
| Tires (touring) |
30 x 3.5 |
| Tires (other bodies) |
32 x 3.5 |
| Wheelbase |
76″ |
| Overall length |
9′ 7″ |
| Height |
5′ 2″ |
| Front/Rear Tread |
56″ (61″ opt) |
| Brakes |
Mechanical on two wheels contracting on inboard drums |
| Wheels |
23″ wood with 12 spokes |
MODEL M DRIVETRAIN OPTIONS
- Different combinations of 9 or 10-tooth driving sprocket with 31, 34, 38, 41, or 45-tooth driven sprocket gave ten possible ratios from 3.1:1 to 5:1.
- Lower ratios for runabout to be run on smooth, level roads to higher ratios for loaded delivery cars to be run on rough, hilly roads.
- Instructions for changing sprockets were furnished to owners, but the change involved disassembly of the transmission and rear axle — definitely not a “quick-change” set-up
|
MODEL M NOTES
- Chassis same as Model K except for two inch longer wheelbase.
- Additional body styles offered.
- Straight line Touring again available.
- Folding Tonneau new.
- Tonneau folds to look like runabout but this body not available on shorter Model K chassis.
- First production one cylinder Coupe offered.
- Serial numbers on plate on rear of body (with engine number).
- Engine numbers were stamped in three places on the crankcase
- On the top of the crankcase at the right edge of cylinder flange, near water outlet
- On the top surface of the crankcase at the left, front mounting leg
- On a plate on the rear of body
- Blank spaces on the patent plate were for additional patent dates, not engine or serial number
- Serial number: 21851 to 22150 and 24075 to 24350
|
MODEL M OPTIONS
- Bulb horn
- Lights
- Rubber cloth Cape Cart top for Touring ($100.00)
|
MODEL M HISTORICAL NOTES
- Introduced 1906.
- Calendar year sales and production: 2350 with models M, K, S (1908), T (1908).
- Model year sales and production, same.
Keyword: Cadillac History 1907
