Some good solutions here. Eric CarplayLB also did some work using a plate that mounted beneath the engine.
If you do a quick check of how much torque 1/4-20 hold torque is in aluminum, it makes you wonder why anyone would use the side cover bolts for anything, much less a brake. OND has the load spread out, which I think is a great idea.
And now back in to my cave to paint a chainguard mount that goes to my 1/4-20 side cover bolt. :biggrin:
If you do a quick check of how much torque 1/4-20 hold torque is in aluminum, it makes you wonder why anyone would use the side cover bolts for anything, much less a brake. OND has the load spread out, which I think is a great idea.
And now back in to my cave to paint a chainguard mount that goes to my 1/4-20 side cover bolt. :biggrin:
Here's one more way to do it. It's not a great shot, but the 5HP engine on this El Burror that I found online has a single large stud mounted on the side of the case. I have a 5HP off of an old rototiller that has the same stud. It's the OEM mount for an idler pulley. I'll have to look at it more closely.
Yeah, one of my 5hp motors has the big hole on the upper right, but not the four small holes that would be so helpful. Mine has a big pin stuck in the hole. Not sure yet if it's pressed in or threaded or just what. I still have to dig it out of the attic and have a closer look. I have a couple of newer 5hp engines with the four small holes, but the styling on those motors looks too new for the bike I'm building. I really like these earlier motors with all of their rounded corners on the castings and tin.
