I&T Shop Manual for the
Allis Chalmers CA

Allis Chalmers CA
General tractor information:
	Manufacturer:	Allis Chalmers
	Model:	CA
	Type:	Farm/Agricultural tractor
	Years produced:	1950 - 1958
	Total built:	39,499
	Factory:	West Allis, Wisconsin, USA
	Original price:	$1,900 (1958)
Tractor power:
	Drawbar (rated):	18 hp [13.4 kW]
	Drawbar (max):	23 hp [17.2 kW]
	PTO (max):	26 hp [19.4 kW]
	PTO (rated):	23 hp [17.2 kW]
Engine:
	Manufacturer:	Allis Chalmers
	Fuel:	gasoline
	Type:	vertical I-head
	Cylinders:	4
	Bore/Stroke:	3.375x3.50 inches [86 x 89 mm]
	Displacement:	125.2 ci [2.1 L]
	Compression:	6.25:1
	Rated RPMs:	1650
	Cooling:	liquid
	Torque:	-unknown-
	Firing order:	1-2-4-3
Transmission:
	Type:	constant mesh
	Forward:	4
	Reverse:	1
Mechanical:
	Chassis:	4x2 2WD
	Steering:	-unknown-
	Brakes:	-unknown-
Capacity:
	Fuel:	13 gal [49 L]
	Coolant:	8 qts [7.6 L]
3-Point Hitch:
	Rear Hitch Category:	snap couple
	Rear lift:	-unknown-
Power Take-off (PTO):
	Rear PTO:	live
	Rear speed (RPM):	538
Tires:
	Ag front:	4.00-15
	Ag rear:	10-24
Dimensions:
	Weight:	2,835 lbs [1285 kg]
	Wheelbase:	82 inches [208 cm]
	Length:	125 inches [317 cm]
	Width:	-unknown-
	Height:	73 inches [185 cm]
	Ground clearance:	-unknown-
Electrical:
Nebraska Tractor Test 453:
	Test Date:	October 1950
	Engine:	-unknown-
	PTO (max):	26 hp [19.4 kW]
	Drawbar (max):	23 hp [17.2 kW]
CA Serial Numbers:
Location: On top of transmission, by shift lever
1950: 14
1951: 322
1952: 10539
1953: 22181
1954: 31424
1955: 32907
1956: 37203
1957: 38618
1958: 38977
Comments:
The live PTO on the CA was due to a hand clutch that "broke" the right side of the rear axle, causing the differental to spin freely.
Allis Chalmers CA links:
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Last updated on April 25, 2008