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Post by cjrenick on Apr 28, 2011 23:37:51 GMT -5
I have been reading about painting the motor. My ? is do you primer first. No one ever mentions it. Just wondering if it is a given or that you just do not lay primer. I am going to be painting my cylinder and head with VHT high temp engine paint. Also has anyone used this paint on their tins? I have read that it does good up against fuel. So, I thought maybe I would just paint my tank with it as well.
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Post by rikroc on Apr 29, 2011 6:57:42 GMT -5
I used a rattle can zinc/chromate primer under the top coat... Still holding up 20 years later...
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Post by ShakerNorm on Apr 29, 2011 17:57:38 GMT -5
Cleanliness is the first BIG priority - and being cast aluminum - oil can seep into all the tiny pores and ruin your paint after you've finished. Clean, clean and clean some more. I've known guys to put engine parts in the dishwasher and got good results - but of course, the wife never heard about it...... or they wouldn't have lived through the night....
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Post by cjrenick on Apr 29, 2011 21:01:00 GMT -5
Looked on the VHT website and I can not decide between the engine enamel(up to 550deg.) or the flameproof(2000deg.). The engine enamel states: They are specially formulated to withstand corrosion, rust, salt spray, chemicals and additives of today’s gasoline blends and degreasers. The flameproof makes not mention of gasoline. They also have a barrel paint. I figure if they use the engine enamel on car motors then it should not be a problem on motorcycle motor as far as the heat goes.
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Post by Chuckwagon on Apr 30, 2011 7:04:28 GMT -5
I'd recommend an acid based degreaser - some of the engine degreasers actually leave an oily film behind. the acid degreaser can cause flash rust on steel parts, like the cylinders, so be aware of that. Follow with brake degreaser. I used a high tem[ engine primer and paint (duplicolor). It has chipped a bit through the rebuilding process, and I've touched it up with good results, but not real confident that it will hold up well.
POR-15 makes a kit for painting engines that is supposed to give superior results. If I could go back, I would've used that kit.
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Post by cafefill on Mar 10, 2012 14:29:50 GMT -5
I was going to start a new thread on painting engines, but found this one. So- I'll tack this on here. I'm also thinking about painting just the crankcase halves, as the rest will be dry ice blasted. I'm also looking at the VHT engine coating in a rattle can, which by the way, says "do not prime". I'm pretty sure that its 550 degree rating is plenty good for a crankcase, but was wondering about color. I'd like to duplicate the stock gray color as close as I can. Has anyone tried the Nu-Cast aluminum color? www.jegs.com/webapp/wcs/stores/servlet/product_10001_10002_749327_-1_10747Or- does someone have a better idea? Meanwhile- a few shots of the engine work in progress:    Thanks in advance for the replies. Cafefill |
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