Mower about five yrs old. At low idle had a interal noise after raise throttle noise disappeared. Yesterday while cutting son noticed engine nosie and cut mower off. I listen after a restart, sounded like something came loose. Pulled engine open. All looked fine. Piston arms good. I couldn't see any reason for "knock". Any suggestions?
Briggs 20 HP Engine Problems
- Thread starter swo
- Start date
You didn't give us much to go on, like type of engine and model numbers, which would help us help you. From the little you did stay, I would start by looking at the overhead valve clearance. It should be adjusted every 3-4 years depending on use.
