air compressor run and make a big sound
1. electric motor back cover and cooling fan should checked, if damage than changed. if loose than tight screw
2. belt and safety belt cover should be checked, if touch each other than repair, or replace belt .
3. head connecting rod damage , should be overhaul the head
1. shaft seal of head should be changed
2. oil lavel should be checked as maintain oil label gauge
3. piston ring should be replacement.
oil spilled outside air compressor