Subbed, this is good shit, keep up the reporting & the
I had this discussion with a number of people, including the guy who blasted it. Opinions are somewhat split on it, but he was strongly in favor of leaving it bare. He showed me his 750 Suzuki triple that he did 3 or 4 years ago, and i couldn't find a spot of corrosion on it. He just used ACF-50.Great post.Im curious after you vapour blasted your crankcases did you paint or leave bare.
I'll buy that....he was strongly in favor of leaving it bare. ...He just used ACF-50.
The vapour blasted finish is quite different to the bare cast finish out of the mold, that the factory would have produced. The surface is far more compacted. It looks and feels a bit like shot peened, but not the same. According to those in favor of leaving it bare, that's what makes it more corrosion resistant in comparison. Bit like the polished castings on many bikes of the olden days i guess? Apparently there is also a corrosion inhibitor in the solution that is used for the blasting process.Nothing wrong with leaving it bare but the paint will adhere better now than it will after it gets dirty again. Otherwise, why would the factory not save the expense and leave them bare to begin with ?
The photo is a bit deceiving, there is lots of room, but yeah it can go in either way.I use that trick but I stick my holder (Phillips screwdriver or Allen key) in from the other side of the head so there's nothing in the way on the side I'm working on. I don't see how you could possibly put the shim and the half rings back in if you don't do this.
My understanding is that the part ends up pretty well submerged in the liquid that it is blasted with, so i doubt that you could seal up the motor adequately for it not to take on water. That might be a question to ask a vapour blasting place though. There are apparently a few different methods and liquids around, all under the one name "vapour blasting", so you may get a different answer than meIn particular, I'd like to know if this process could be done with the motor out of the bike but not disassembled?
This shows the process i went for:I had seen a similar video of dry ice blasting an engine out of the car and figured this was the same thing.