NOTE: IF LAMINATIONS ARE BAD ON AN INTERNAL COIL ASSEMBLY, THE ENTIRE STATOR BODY MUST BE REPLACED SINCE THE LAMINATIONS ARE PERMANENTLY RIVETED TO THE STATOR.Įxternal coils are permanently attached to the lamination and must be serviced as an assembly.įor more information of how to set the timing as well as other things on this engine, get the service manual from here. If the coil or lamination assembly is defective, replace as necessary. Engine and Transmission Group Service Division. Follow the instructions furnished with the test unit or booklets offered by the Tecumseh Products Co. Check the operation of the coil using an approved tester. Make sure the electrical leads are intact, especially where they enter the coil.Ĩ. Examine the coil and lamination assembly (either internal or external) for cracks in the insulation or other damage which would cause shorts or leakage of current. An engine will not run smoothly if the points are improperly set or coated with even a small quantity of oil, etc.ħ. After the points are replaced and engine is retimed, be sure to clean the points with lint free paper. When replacing the points, also replace the condenser.į. If any of the above are faulty, replace accordingly.Į. If they are pitted or burned, this is an indication that the condenser is not functioning properly. Check the spring steel on the point assembly for evidence of excessive heat.ĭ. Check the movable point arm that rests on the ignition cam for wear.Ĭ. If the screwdriver blade is attracted to the magnets, the magnetic strength is satisfactory.ī. Hold a screwdriver at the extreme end of the handle with the blade down, move the blade to within 3/4 inch (19.05 mm) of the magnets. Check the flywheel magnets for the proper strength using this rough test. Check the air gap between the flywheel magnets and the laminations of an externally mounted coil or module. NOTE: STANDARD POINT IGNITION MAY HAVE TO BE DISCONNECTED AT THE IGNITION SHUTOFF (AT THE SPEED CONTROL).Ĥ. If spark occurs, check the ignition switch, safety interlock switches, electrical wiring for shorting to ground, or oil shutdown switch. Reinstall the blower housing and crank the engine over.

Remove the blower housing, disconnect the ignition ground lead at the ignition coil (solid state only). Check for the correct spark plug and for cracks in the porcelain, pitted or burned electrodes, excessive carbon buildup, and proper air gap setting. Check for spark using a commercially available spark tester and following the tester's recommended procedure.Ģ. Juan Hernandez, here is the testing procedure for the ignition of your Tecumseh:'ġ.

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