I have an exhaust leak in the front where the pipe meets the motor. I have replaced the gasket yet it makes the exact same noise as it did before the gasket was replaced. I kept tightening the clamp down so hard that I felt I was at the constant risk of doing damage to something. Is that normal with exhaust? I also looked at the clamp and it didn't look warped or bent. I will admit that I didn't replace the retaining ring because it still looked like it could do it's job. What is causing the leak to remain? Is it the retaining ring? As always...thank you in advance for your responses.