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Small Engines (Lawn Mowers, etc.)/Lawn Tractor's Muffler is coming off


I have a B&S Engine on a Lawn Tractor and recently, I was getting too much trepidation (vibrations from the engine block); I discovered that the four mounting bolts at the end of the engine tied to the chassis, were loose. In the process, the muffler unscrewed itself from the engine block, I guess because of the vibrations!.
Is there a material which I can wrap around the muffler (where it's machined) in order to force-screw it into the engine block so it won't unscrew itself again, especially when the vibration problem has been solved?!.
If there's isn't a material, what about some solution which becomes solid (as cement or stronger) at high temperature?.
Please, recommend such material and/or solution for such task.
Thank you,

Vibration, like you described, will cause other nuts and bolts to loosen.

Does your muffler just screw into the engine or does it attach with 2 or more bolts?

If you have a screw in style you can use a lock nut, usually an electric conduit nut will fit, and use the nut to mechanically lock the muffler in place.  Just install the nut on the threads, all the way to the end, then screw the muffler in as far as it will go, then use pliers or a punch and hammer to tighten the will keep the muffler from backing out.


Small Engines (Lawn Mowers, etc.)

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Eric A. Jones


Lawnmower Repair . Certified Master Service Technician from B&S. Have 23 years experience on B&S, Lawn Chief, Weed Eater, Echo, Peerless, Wheel Horse, Snapper, Atlas, MTD, McCulloch, Homelite and many other numerous brands. Specialize in electrical repair.


Born and raised in the midwest. Started tinkering with engines when I was about 14 on my Suzuki RM-80. I began lawn mower repair at a small hardware store. I knew absolutely nothing. I read lots of repair manuals and met an older fellow who taught me many lessons. I continued working on small engines through high school and paid my way through college working on mowers at the same hardware store. Decided to get away from the midwest and mower repair so I joined the Air Force. I repaired air traffic control electronic equipment and ended up in Hawaii where I got a part time job at Small Engine Clinic. I gained a lot of experience from the Small Engine Clinic and had a blast repairing small engines. I then took the Briggs and Stratton Master Service Technician test and earned my MST. I then traveled to Wisconsin where I attended the factory update training seminar and received formal training. Continued working on mowers part time as I completed 20 years of military. Retired from the military on a Friday and continued in the lawn and garden industry the next Monday.

MAS Aerospace Operations BA Mathematics AAS Electronic Communications AAS Electronic Technology

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