[Healeys] Intake manifold finishes

Michael MacLean rrengineer.mike at att.net
Mon Feb 20 13:13:26 MST 2017

Bruce,     I have done my intake manifolds in Jet Hot coating.  They have a light silver that looks aluminum or actually any color you want.  It also keeps the heat from the engine bay out of the intake. Bonus.Jet-Hot High Performance Ceramic Coatings

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Jet-Hot High Performance Ceramic Coatings
 High-performance coatings. Solving problems with heat, corrosion, friction, and appearance. Backed with our li...  |   |



Mike MacLean

    On Sunday, February 19, 2017 10:27 PM, Bruce Steele <healeybruce at roadrunner.com> wrote:

 <!--#yiv0729484465 _filtered #yiv0729484465 {font-family:"Cambria Math";panose-1:2 4 5 3 5 4 6 3 2 4;} _filtered #yiv0729484465 {font-family:Calibri;panose-1:2 15 5 2 2 2 4 3 2 4;} _filtered #yiv0729484465 {font-family:"Trebuchet MS";panose-1:2 11 6 3 2 2 2 2 2 4;}#yiv0729484465 #yiv0729484465 p.yiv0729484465MsoNormal, #yiv0729484465 li.yiv0729484465MsoNormal, #yiv0729484465 div.yiv0729484465MsoNormal {margin:0in;margin-bottom:.0001pt;font-size:11.0pt;font-family:"Calibri", sans-serif;}#yiv0729484465 a:link, #yiv0729484465 span.yiv0729484465MsoHyperlink {color:#0563C1;text-decoration:underline;}#yiv0729484465 a:visited, #yiv0729484465 span.yiv0729484465MsoHyperlinkFollowed {color:#954F72;text-decoration:underline;}#yiv0729484465 span.yiv0729484465EmailStyle17 {font-family:"Trebuchet MS", sans-serif;color:windowtext;}#yiv0729484465 .yiv0729484465MsoChpDefault {font-family:"Calibri", sans-serif;} _filtered #yiv0729484465 {margin:1.0in 1.0in 1.0in 1.0in;}#yiv0729484465 div.yiv0729484465WordSection1 {}-->I’m interested in my options for finishing my intake manifold.  It was powder coated clear 12 years ago, and the coating has yellowed at the head flanges from heat, and over the years what look like rust spots have developed in the powder coat, which is odd since the manifold is cast aluminum (see the attached photo).  I’d prefer to preserve the natural cast aluminum color, and I’m not a big fan of the chrome or polished look on the intake (my apologies to all you out there with nice shiny intake manifolds—it’s just not my taste).  I had the exhaust manifold Jet-Hot coated in a cast iron gray 12 years ago, and they still look great.  So, Jet-Hot coating the intake is one option, but the color samples they sent me of their lightest grays are all at best a medium gray; all considerably darker than their online color catalogue indicates.  I’m going to call them Monday, but I’m not sure they have a coating light enough.  I also don’t want to paint it, as I know that won’t hold up long term.  I’m curious about blasting the clear powder coat off and leaving the manifold uncoated.  How does the “naked” aluminum hold up to the heat?  What have others done?  Your experience is appreciated.  Bruce SteeleBrea, CA1960 BN7  
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