Long stroy short - I have three sheared engine mounting bolts on my Meteor 1010.
I was plowing/smoothing an area for an ice hocky rink when I noticed friction lowering the attachment lever. Took a look and found out the engine was holding in place by only one bolt - three were sheared.
A previous owner replaced the original HH100 with a newer HH100 which apparently was slightly larger which necessitated making some modifications to the mount - at leas this is my guess. So the two L shaped mouting brackets (see pictures) were raised with 1" aluminum spacers, the bolt holes on the mounting brackets were enlarged, and a mounting plate which also has oversized holes was added between the mouting brackets and the engine. The rubber isolaters were between the mounting plate and the engine.
My guess is the bolt holes were enlarged to allow for extra movement to align the new engine. I believe the force I was exerting on the engine/mounting bracket by occassionally hitting roots etc - which stopped stopped the tractor dead in its tracks a few times - caused the engine to slide back and forth in the oversized bolt holes - which eventually led to the shear failure.
So - what I am looking for is some advice/input in how this engine is supposed to be mounted on the tractor? Are the rubber isolators supposed to be between the frame and the L brackers or be between the L brackets and the engine?
I am considering reversing and flipping the L brackets 180 degrees, and then drilling new tighter holes so there is less slop. Or I could keep the holes and try to figure out a bushing set up to cushion the mounting bolts in the oversized holes.
Any input or suggestions on the best way to preven this from occuring again would be appreciated.