I had to change my muffler on my Honda 13 hp motor (GX 390), but not before the vibration ruined some threads in the engine block (ie. head). I tried putting in a new bolt and it held ok, so I changed my gasket and bolted on the new muffler. However, the muffler just won't stay on, either the bolt losens or the nut does. I tried using JB Weld on the bolts and Locktight on the nuts, and this has helped somewhat, but the muffler still gradually loosens off and I have to tighten them every day before I get started.
Any ideas or solutions on how to permanently keep on the new meffler? Thanks in advance.
Any ideas or solutions on how to permanently keep on the new meffler? Thanks in advance.