Hopefully this is not a rinse and repeat thread. I have a 2005 Cub Cadet LT1042 with only 225 engine hours on it. I noticed recently that there is a slight knocking noise when running but it seems to be intermittent while running. I checked all the issues know to this situation and cannot find anything related. Things I have gone over such as Engine Frame and Head Bolts, Deck Spindles, PTO assembly etc...and cannot find anything loose.
No engine case cracks or oil leaks as well. I take excellent care of the mower and due its routine maintenance. It sounds like a rod bearing but I could be wrong. No flywheel key issues all seems tight under the hood.
