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Post by 81pumagtc on Oct 17, 2014 21:24:47 GMT -5
Be careful if you want to paint the cylinders. I have seen a number of air-cooled motorcycles with engine overheating problems when they paint the engine to look better. Regular heat-resistant paint severely reduces heat transfer when the engine is air-cooled. I think you can find a VHT white paper on this.
Dave Riedle
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vanapplebomb
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Post by vanapplebomb on Oct 18, 2014 0:06:14 GMT -5
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MadMike
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Post by MadMike on Oct 18, 2014 6:02:20 GMT -5
Don't be 'anal' tins cover the things anyhow,, Paint holds Heat!!!
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Post by thedirtydutchman on Oct 18, 2014 8:25:18 GMT -5
But I cant help it!!! They look gross  However I really dont need extra heat |
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Post by 81pumagtc on Oct 18, 2014 8:57:51 GMT -5
The thread that vanapplebomb had a link to had a number of long-winded threads, but several were excellent. Pretty much all of them said black is best, and everyone said that thin is the key word. Most people talked about flat black, but a couple of guys did mention satin, or low gloss. Personally, I like satin for the ease of cleaning versus flat.
Having black tins versus chrome is a matter of taste, since there is a great deal of air going through them it should not make much of a difference. Chrome does hold quite a bit more heat, but I don't think it makes much of a difference in the real world.
Chrome rocker covers are another matter, however.
There is little air flow past them, and they do run consistently hotter. Tests showed 20+ degrees after you have driven for 30 minutes or so.
A number of the guys that do hot engines will only put black rocker covers on them.
I was interested in some alloy covers for the pig of plastic, but I read a number of things I read said that the simple cover and bail system was best, fewer leaks, etc. I ended up with some Gene Berg covers with a breather braised on rather than ones with breathers bolted on...no chance of coming loose and leaking. Made sense to me.
Dave Riedle
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Post by thedirtydutchman on Oct 18, 2014 9:15:25 GMT -5
My tins will end up black or some other dark color, mostly because im not a fan of chrome. I think ill clean up the cylinders and do a thin coat of bbq black paint on them. I am currently running finned aluminum valve covers and I might bbq paint those as well. I know "paint hold heat" but im weird and want the thing to look sort of nice. As I said before since everyone can see the motor all the time id like it to look nice-ish. From what ive read a thin coat of paint won't hurt anything.
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vanapplebomb
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Post by vanapplebomb on Oct 18, 2014 14:52:53 GMT -5
The more I read their posts the more I am leaning towards painting the cylinders myself. I guess it comes down to what is a better insulator. Rust or a couple light shots of paint? If I do i'm just going to get the cheapest paint I can find like a lot of those guys suggested. Apparently the cheapest paints don't include ceramics like special high temp paints do, and the cylinders don't get hot enough to burn cheap paint off anyways.
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Post by thedirtydutchman on Oct 18, 2014 16:40:53 GMT -5
I think ill go with the bbq paint. Its really thin and sprays well. Ive used it in the past on four wheeler exhaust.
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Post by thedirtydutchman on Oct 20, 2014 11:44:50 GMT -5
Well, this is on hold for a bit. Money I had set aside for parts etc is now being spend on my POS truck. Front wheel bearing went out and took the brakes with it Fun times! Oh well, its a long winter! |
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vanapplebomb
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Post by vanapplebomb on Oct 20, 2014 16:50:33 GMT -5
Dangus wheel bearings....
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Post by thedirtydutchman on Oct 20, 2014 17:33:45 GMT -5
Yea, stupid truck! Lol. Oh well, had to be fixed. Didn't need the wheel flying off!
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vanapplebomb
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Post by vanapplebomb on Oct 20, 2014 20:56:44 GMT -5
I had to replace my front wheel bearings on the piece of crap ford forcus this past sumer after they began making noise while on my way down state. By the time I got off on 55 to cut over west to 131 my bearings were howling so loud I had to drive with the window open to keep the sound from resonating in the cabin. I had such a bad headache when I got home it wasn't even funny. I have never heard wheel bearings howl so loud before in my life. I'm glad they survived the trip home.
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Post by thedirtydutchman on Oct 21, 2014 7:17:11 GMT -5
Mine wasn't quite that loud but it was making enough noise that it echoed off the houses in my neighborhood!
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vanapplebomb
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Post by vanapplebomb on Oct 21, 2014 7:48:02 GMT -5
Did yours get worse over a long period of time or go from normal to a loud howl in a meter of an hour or two? Mine went from normal to very loud between Gaylord and the exit to highway 55 off 127. I was suprised how fast the change in sound progressed. Yikes!
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Post by thedirtydutchman on Oct 21, 2014 8:25:46 GMT -5
Mina actually started making a very small amount of noise on the way back from the bug run. It got worse over that week. I jacked it up and the whole tire and wheel moved ALOT.
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However I really dont need extra heat