I have the oil pump sitting on my floor. It was a job to get it out. Cross member and half the front end is hanging. Had lost oil pressure and replaced the sending unit. The "O" type rings on the oil tube are obviously worn out but would like to test the pump before reinstall, cuz I DONT WANNA DO THIS AGAIN! LOL. Thought about turning it with a low speed drill in a pan of oil. Any ideas on how fasat the pump shaft turns at engine idle?