and after a couple of minutes, it seized up with a bang. because of its age and make, it certainly would cause great difficulties acquiring expensive spare parts. so it received its death sentence. the crank bearings were bad, and the piston and cylinder wall looked like something from a gravel pit. we all learned a lesson we will never forget.

Please write the text above using proper case.
And after a couple of minutes, it seized up with a bang. Because of its age and make, it certainly would cause great difficulties acquiring expensive spare parts. So it received its death sentence. The crank bearings were bad, and the piston and cylinder wall looked like something from a gravel pit. We all learned a lesson we will never forget.