SpongeBobbed
650 Simpleton
Hey there,
I built a bobber a couple years ago and have been enjoying it a ton. I went on a long ride in the summer and ended up blowing up the top end. I tore it apart and the culprit ended up being connecting rods that were out of alignment.
Instead of pulling the crank apart and getting new rods then doing new pistons and cylinders, I found an local used engine with a all the innards in good shape. I figured i would just rebuilt that with new seals and gaskets and keep it simple.
I'm pulling it apart to aqua blast everything and when I split the cases I found a couple issues. The first is a couple small nicks on the sealing surface between the top and bottom cases. It doesn't look major, but I wanted to hear from others on the forum about what they thought. I've seen other posts where there were major scratches and people advised putting some JB weld on and sanding it to a smooth, even finish. Do you think that is needed here?
Also, when I noticed a hairline crack on the left side of the case. Can this be welded? Should it be welded? Or do I need a new top case? Any info would be really helpful. Thanks a bunch.
I built a bobber a couple years ago and have been enjoying it a ton. I went on a long ride in the summer and ended up blowing up the top end. I tore it apart and the culprit ended up being connecting rods that were out of alignment.
Instead of pulling the crank apart and getting new rods then doing new pistons and cylinders, I found an local used engine with a all the innards in good shape. I figured i would just rebuilt that with new seals and gaskets and keep it simple.
I'm pulling it apart to aqua blast everything and when I split the cases I found a couple issues. The first is a couple small nicks on the sealing surface between the top and bottom cases. It doesn't look major, but I wanted to hear from others on the forum about what they thought. I've seen other posts where there were major scratches and people advised putting some JB weld on and sanding it to a smooth, even finish. Do you think that is needed here?
Also, when I noticed a hairline crack on the left side of the case. Can this be welded? Should it be welded? Or do I need a new top case? Any info would be really helpful. Thanks a bunch.