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 Posted: 06-29-2007 05:13 pm
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jensen4u
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Location: Clermont, Georgia USA
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I have removed my cam covers and bead blasted them. I want to powder coat them and am not certain if I need to use a hi-temp powder. Obviously the hi-temp options are much more narrow and would prefer not, but do not want to do the wrong thing either. If the worst that would happen with a normal powder was discolor I would still consider that as the area of concern is not seen easily. Normally cam covers would not have a heat issue, but I am not sure about the lower as it is quite close to the exhaust header. Any advice you can provide would be much appreciated.

 

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 Posted: 06-29-2007 07:26 pm
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Greg Fletcher
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I've always refinished my covers in black wrinkle finish since they came that way and I like that look. If it's applied correctly, the wrinkle finish will last many years so I would think any normal power coating would be at least if not more durable.

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 Posted: 06-30-2007 05:02 pm
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jensen4u
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I was thinking of either using the color polished aluminum of smoked chrome which are both very similar. I also like the wrinkle coat, but would want to have the fins and letters show like original. After glass bead blasting I see the elevation difference from the surface is not too much and would be quite difficult to achieve this factory look. That is why I thought about the polishe aluminum color as this would not be a distasteful mod IMO. I was told that the costant service temp of a normal powder coat is 250 degrees F or 350 degrees peak. I hope it will be good enough for my application. Also something to note is that the wrinkle coat via powder I have found is not high temp either so I guess it would be subject to the same issues?

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 Posted: 06-30-2007 05:37 pm
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Jensen Healey
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I just removed the paint and polished the aluminum. They still look fine after 5 years.

I believe the reason they were painted black was to dissipate heat more efficiently.

Kurt

 

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 Posted: 06-30-2007 07:56 pm
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jensen4u
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My castings are so rough I am certain it would take a good long while to polish mine. I was hoping that would be an option and still may be, but a rather timely one given how rough they were cast.

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 Posted: 07-03-2007 03:54 pm
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Arvin Appelman
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I had mine done with black wrinkle powder coat then dusted the raised portion with a mill.  It still looks good after 3 years and a sparying with brake fluid.

Arvin Appelman

19492

 

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