Now I don't feel bad building a wood base using 6"x6" beams with cross pieces of the same size for Penelope
Stan
Stan,
In regards to your beams. What kind of wood are they? Reason I ask is I recently threw together a temporary test base for my new JD175A diesel and a big 2 kW Koehler 4 pole alternator with built in starter motor feature. This package sits on a concrete floor on heavy duty sized, medium duty rubber wheel 1 inch by 4 inch wheeled straight and swivel casters. The straight casters are on the engine end. BTW, it stays put on the floor (no desire to explore the room) without wheel locks and transfers no vibration to the floor. My maple beams are mill cuttings out of the center area of a big tree and were cheap. Hard as nails that maple, very heavy (dense) and super strong! My wood rails are about 7 thick by 8- 9 inches wide. I have four, 3/8 inch lag bolts holding the engine into these beams with 2 inches of thread in the wood. My engine is slowliy loosening these bolts. They are not unscrewing, the wood is being compacted on the compression (top side of the threads).
Because of this I advise, whatever wood you have used. put a bolt or all-thread rod completely through the wood and use large flat washers, locks and nuts on the opposite side of the engine.
I should add that after about 20 run hours so far and a few tightenings my loosening situation seems to have almost stabilized, but I don`t think it will completely, hence my strong recommendation here.
.