Allright! I got the deck off; and I found that I did have a small twig in between the belt and the pulley. However; when I put the blades back on the first time, I made the mistake of doing it in front of my father-in-law. He just happened to have tools in his truck; and insisted on putting the blades on for me. He also owns a Craftsman tractor; and told me "I didn't need to have the bolts as tight as I did". So; now I don't know if was the twig between the belt and the pulley; (because it was so tiny); or because the bolt on the spindle was too loose. The good news is; there is no more vibration, my headache is gone; and so is my father-in-law... for the time being. I will get a good sleep tonight; except for waking up at fifteen minute intervals to make sure everything hasn't gone up in flames; and when the sun rises I will make it a point to check the frame for cracks. Look for my new topic; "What tractor to Buy?" Then you guys can really go at it! (Again). Thanks for your help!

AKi, does the car seem out of tune or does it just vibrate? I recall my little nissan sentra would vibrate some as it got older, but it didn't really bother me. Heres a link below that may be helpful. -jasper Here is a link that might be useful: Vibration

Hey Dave1812. Thanks for the information. This is my specific scenario: My machine will be going on the main floor over a basement. One story house. The machine will be in the corner of 2 perpendicular load bearing walls. the span for the joist in this room is about 8 or 9 feet. the floor's bottom layer has 1x6 old diagonal boards on top of 2x8 doug fir joist 16"oc, then a layer of 3/4 Sturdi floor glued and screwed 6"oc entire area, then 3/8 a-c ply and screwed 6"oc to the Sturdi floor, followed by 1/4" self leveling compound in a plastic mesh (electric heating too), layer of Strata-Mat (Laticrete's Ditra equivalent), and finally tile. Any thoughts on more support on top of the tile? My Miele set to be stacked will be here Tuesday :) I was thinking that I could put a double layer of Sturdi floor set on top of the tile and put the W/D on top of that. But the ply wouldn't be mounted to anything. Another GW member stated that he used mass loaded vinyl sheet between the 2 layers of ply, glued and screwed together then set on the floor over a rug friction mat. I would do that but I can't find any MLV without buying a ton of it. Another option is that I could put the stall mat mentioned above by the OP between a couple of layers of Sturdi floor ply, glued and screwed. It will also lift the set up a bit from the floor and ease the need to bend over so far.

" even a gentle knock on the wall next to the fixture causes it to start and stop. " Cheap bulbs or loose fixture mounting screws. Not just the screws you may be able to see, but any screws concealed behind the fixture holding mounting brackets to the wall or the junction box behind the fixture. Try just gently pushing on the fixture between the bulbs forsing it tighter to the wall. Sometimes just touching it (even pushing on it or squeezing firmly with your hand) can dampen out the vibration. Remember the bulbs will be flesh burning hot (and any metal near them).