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General Category => General Discussion => Topic started by: gearman on August 13, 2017, 11:58:46 AM
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After trying various al. brightners I decided to just blast the engine.75 psi and large beads.
(http://thumb.ibb.co/e58uCF/IMG_0005.jpg) (http://ibb.co/e58uCF)
(http://thumb.ibb.co/dv9qma/IMG_0004.jpg) (http://ibb.co/dv9qma)
(http://thumb.ibb.co/gsEHXF/IMG_0002.jpg) (http://ibb.co/gsEHXF)
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(http://thumb.ibb.co/fyg9ev/IMG_0008.jpg) (http://ibb.co/fyg9ev)
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Have you been left with a nice "sheen" or has it gone flat and every time you touch it, you're left with smudge marks? It sure as hell looks like a good result...
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That takes some work. I'm whittling the blistered paint off a free engine case with the sandblaster. I've got about 4 hours into it now and it still has reluctant patches. So I understand the effort.
You might want to have it clear coated. A zero or low-gloss clear powder coat will keep it looking like that for a long time.
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Yes the sheen is wonderfull. You get that by using the right size beads and not too high pressure.It is still new so it will weather. I see that someone here said to spray it with WD40 once in a while to keep the discoloring at bay.Any Ideas?RK, I thought about clear coat but am concerned about soft paint. I did my valve covers a few years ago and the metallic part softened and changed for the worse. Any body do rattle can clear?
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I've always used walnut shell derived abrasive on mechanical parts for fear of glass or sand residua in the nooks and crannies. Walnut shells residua supposedly less damaging to moving parts.
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I said powdercoat, not paint.
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Powder coat means the engine would have to come apart. Right?
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In my VW/Porsche engine rebuilding business we always glass beaded the heads before rebuilding. Made them look like new, but in a different sort of way. Never used walnut shells or other items like that, but I think that I would like to try. I am currently setting up a new shop and will make my own blasting cabinet and use glass beads to start on loopframe heads.
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Powder coat means the engine would have to come apart. Right?
Yes, just like for proper glass beading.
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+1 on the walnut shells, a couple glass beads in the wrong spot (and it gets EVERYWHERE) can wreak havoc. Amsoil metal protectant or wd40 every now an then helps retain the sheen.
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Yes, just like for proper glass beading.
If you know what you are doing, you can do what I did.No need to take the engine apart. one hour of blasting vs ?????????