Hello my friend, you cannot change it. This should be due to the fact that the generator is manufactured based on the principle of electromagnetic induction. The rotor of your original motor is made of several superimposed silicon steel sheets and cannot produce electromagnetic induction, whereas that of the generator. The rotor is a permanent magnet, this type of generator is called a rotating pole generator. The principle of an electric motor is that an energized coil generates a powerful magnetic field and the rotor rotates under the action of torque. Your engine cannot therefore be transformed into a generator. You can buy one, it's not very expensive, if you need it. Thanks
How to use JF132 car generator to modify wind turbine
Electric vehicles are permanent magnet direct current motors. The magnetic field is generated by permanent magnets. doesn't require an exwinding quote. The easiest way to convert a battery car engine into a generator is to use PVC water pipes cut into a trapezoid shape with curved surfaces to serve as fan blades. Attach the motor shaft to the iron pipe and add a guide rudder behind it. Finally, everything is connected and fixed via the rotating shaft, and can produce electricity.
It’s very technical. First of all, you need to calculate what size fan blades to use, what is the gear transmission ratio, etc., and the electricity produced. must be transformed and rectified.
It depends on the wind strength where you are. Generally, blades with a diameter greater than one meter are required. The manufacturing requirements for blades are relatively high. You need to find a variable speed gear and. a battery to store electricity, it is very tedious andrelatively expensive.