CJ2A Operation and Care
Manual -- Inspections and Precautions



At assembly a restrictor is placed between the intake manifold and the carburetor to limit the road speed to approximately 42 mph.  To protect the vehicle, leave the restrictor in position for the first 500 miles of road operation, or equivalent in industrial operation, after which remove and discard it.

It is an obligation of the Selling Dealer to carefully inspect and adjust your Universal Jeep before delivery.  After your vehicle has been operated 1000 miles, return it to your dealer for the 1000 Mile Inspection in accordance with Factory Form, Ser. 3455.  This inspection is free with the exception of engine oil and anti-freeze solution used.

1000 Mile Free Inspection

Check steering system and front wheel alignment.
Check spring clip nuts and spring shackles.
Check rear axle for oil and leaks.
Adjust body bolts.
Test service and hand brakes -- inflate tires.
Check cooling system for leaks and anti-freeze and fan belt adjustment.
Adjust clutch pedal.
Check operation of transmission and transfer case -- Check for oil level and leaks.
Check battery, generator output, headlamps and horn.
Tighten universal joint companion flange bolts.
Check operation of ammeter, heat indicator, fuel and oil gauges.
Tighten cylinder head nuts -- Check timing and distributor points.
Set spark plugs -- Adjust carburetor -- Check throttle controls.
Check engine for oil leaks -- Check fuel line connections.
Adjust valve tappets, if required.
Change engine oil (charge for oil) -- Lubricate vehicle.
Clean and refill air cleaner.
Clean fuel pump sump and strainer.
Check extra equipment attaching screws -- Check for oil level and leaks.

Vehicle Serial Number ____________________
Engine  Serial Number ____________________
Purchase Date __________________________
Ignition Key Number _____________________



Proper Operation

Do not run your "Universal Jeep" faster than 40 miles an hour for the first 500 miles or if used on the farm or for industrial operation, use care when pulling heavy loads in the lower gear ratios.  If the vehicle is operated at high speeds while new or used for heavy pulling for a long period, the closely fitted parts might possibly become overheated, resulting in scored pistons, cylinders or burned bearings.  During its entire life, never race the engine while making adjustments or when the vehicle is standing idle.  It the vehicle is not properly lubricated, our Warranty is null and void.  Be sure to have your Willys-Overland Dealer inspect your vehicle at the end of 1000 miles or equivalent usage and every 2500 miles thereafter.


There are several points of difference between the Universal Jeep and a conventional vehicle to receive attention.  As a general precaution and for your information we are listing these "cautions" below:

The Jeep is equipped with a transfer case and four-wheel drive to provide additional traction and a lower gear ratio for use on difficult terrain.  Use the front wheel drive only when necessary.  Consider the front wheel drive and the transfer case as a lower gear ratio than the standard transmission low gear and use it only when greater power is required.

The use of four-wheel drive on hard surfaced highways will result in rapid tire wear and hard shifting of the transfer case, particularly when the front wheels are steered even at a slight angle from the straight ahead position.  If hard shifting occurs, disengage the clutch, start engine, shift transmission into reverse gear, back the vehicle a few feet, and disengage clutch.  If transfer case is in low range, shift into high then shift front axle into "out" position (lever forward).

Two drain cocks are provided to drain the cooling system.  A drain cock is located under the left side of the radiator, however, it is necessary to drain the cylinder block separately.  The cylinder block drain is located at the right front corner of the block directly under the generator.  Loosen the radiator cap to break the seal and permit complete draining.

Check the level of the lubricant often in the transmission and transfer case.  Be sure the lubricant is at filler level in both units at all times.

As a standard, the clutch pedal is adjusted with 1" free travel.  As the clutch wears this becomes less.  Be sure that there is free travel at all times to prevent continuous operation of the clutch release bearing and rapid wear and slippage of the clutch.  This adjustment is made by lengthening or shortening the clutch control cable.

The ventilator valve, mounted in the intake manifold, must be free to operate.  If it is stuck open very uneven engine operation at low speed will result.

Be sure the exhaust manifold heat control valve is free at all times and the thermostatic control spring is above the stop.

Six screws are used to attach the front wheel brake backing plate and spindle to the spindle housing.  These screws are standard in dimensions and thread pitch, however, they are made of special steel and receive special heat treatment.  Safety demands that only genuine factory screws be used at this point.

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