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Powder coating valve cover

AuSpecVr4

Well-known member
Joined
Dec 1, 2010
Messages
107
Location
Brisbane, QLD
Hey

I sent my Valve cover in today to get powder coated and was told that he cant help get powder underneath the cover. Will this matter at all or will it do any harm to my engine?
 

Barnes

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Joined
Feb 9, 2003
Messages
6,249
Location
Richland, WA
Do not powder coat the underside of the valve cover!! Also, how is the original paint being removed from the valve cover? Do NOT sandblast the valve cover to remove the original paint unless you remove the baffle on the underside and clean it VERY well after sandblasting.
 

AuSpecVr4

Well-known member
Joined
Dec 1, 2010
Messages
107
Location
Brisbane, QLD
Oh k, so in other words, i'll go pick it up and send it to someone who wont powder coat the bottom of the valve cover? I have to remove the paint myself tho with some paint stripper correct?
 

Barnes

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Joined
Feb 9, 2003
Messages
6,249
Location
Richland, WA
Yes. Paint stripper is a very good option. It is messy, and a pain, but safer. Sandblasting the valve cover can leave sand inside the baffle. That sand can come loose and end up in your engine oil and ruin your bearings.

And yes, only powdercoat the portion of the valve cover on that will be on the outside. Anything that will be exposed to the inside of the engine should not be coated.
 

citymunky

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Joined
Sep 22, 2010
Messages
1,761
Location
Chesapeake, VA
use a high grid sandpaper (like 2000 of 3000 grid) to remove the spots powder coat under the cover, and than clean it good after you are done.
 

SouthCaliVR4

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Joined
Jul 31, 2010
Messages
984
Location
North county San Diego
Best paint stripper I have found for items like this comes in an aerosol can & is called Tal-Strip. Its an aircraft paint stripper & works very well on aluminum. DO NOT GET IT ON YOU OR BREATHE THE STUFF!!!!
 

gmp

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Joined
Apr 1, 2007
Messages
549
Location
Denver,co
i second that such good stuff you can hear it cracking like rice crispys. Easy paint removal...
 

AuSpecVr4

Well-known member
Joined
Dec 1, 2010
Messages
107
Location
Brisbane, QLD
Thanks guys, i am stripping back the home spray job as we speak with 3M paint stripper, this stuff really hurts when you get it on you. Will take some time but taking it to someone who specializes in painting valve covers so the bottom will be untouched by powder coat.
 

AnotherNewb

Well-known member
Joined
Apr 25, 2010
Messages
1,472
Location
Orlando, FL
Dbossman is powdercoating fairly cheap. If you ask him nicely he may send you a pic of his white VC with black lettering.
 

brisvr4

Well-known member
Joined
Feb 13, 2004
Messages
955
Location
brisbane australia
Who are you taking it to?
Lewis and sons?
 

A little over spray here and there won't hurt anything if by chance some sneeks around the masking tape, but definitely wouldn't intentionaly coat it or anything. +1 to the aircraft stripper. Definitely the safest, most effective way to strip a VC. I also recomend it being tanked before coating. The oil can burn off and mix with your powder coat, especially lighter colors.
 
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