[Healeys] Intake manifold finishes

Michael MacLean rrengineer.mike at att.net
Tue Feb 21 03:17:51 MST 2017

Makes sense.Mike MacLean

    On Tuesday, February 21, 2017 2:03 AM, Bob Spidell <bspidell at comcast.net> wrote:

  The manifolds on our original 100M were bare Al, but I can't say whether they came that way or the paint burned off.  I suspect--since they added the larger carbs at the Healey factory--they wouldn't have bothered to paint them (since they usually couldn't be bothered to pull the engine to replace the cam).
 On 2/20/2017 4:46 PM, Michael MacLean wrote:
  Steve,      Healey green for the normal intake manifold, begs the question, what color the Lemans intake manifolds on Lemans conversions of the 100? Mike MacLean
      On Monday, February 20, 2017 2:47 PM, BJ8Healeys <sbyers at ec.rr.com> wrote:
   #yiv3133065192 #yiv3133065192 -- filtered {panose-1:2 4 5 3 5 4 6 3 2 4;}#yiv3133065192 filtered {font-family:Calibri;panose-1:2 15 5 2 2 2 4 3 2 4;}#yiv3133065192 filtered {font-family:Tahoma;panose-1:2 11 6 4 3 5 4 4 2 4;}#yiv3133065192 filtered {panose-1:3 15 7 2 3 3 2 2 2 4;}#yiv3133065192 filtered {panose-1:2 11 6 3 2 2 2 2 2 4;}#yiv3133065192 p.yiv3133065192MsoNormal, #yiv3133065192 li.yiv3133065192MsoNormal, #yiv3133065192 div.yiv3133065192MsoNormal {margin:0in;margin-bottom:.0001pt;font-size:11.0pt;}#yiv3133065192 a:link, #yiv3133065192 span.yiv3133065192MsoHyperlink {color:#0563C1;text-decoration:underline;}#yiv3133065192 a:visited, #yiv3133065192 span.yiv3133065192MsoHyperlinkFollowed {color:#954F72;text-decoration:underline;}#yiv3133065192 p.yiv3133065192MsoAcetate, #yiv3133065192 li.yiv3133065192MsoAcetate, #yiv3133065192 div.yiv3133065192MsoAcetate {margin:0in;margin-bottom:.0001pt;font-size:8.0pt;}#yiv3133065192 span.yiv3133065192EmailStyle17 {color:windowtext;}#yiv3133065192 span.yiv3133065192EmailStyle18 {color:#002060;font-weight:normal;font-style:normal;}#yiv3133065192 span.yiv3133065192BalloonTextChar {}#yiv3133065192 .yiv3133065192MsoChpDefault {font-size:10.0pt;}#yiv3133065192 filtered {margin:1.0in 1.0in 1.0in 1.0in;}#yiv3133065192 div.yiv3133065192WordSection1 {}#yiv3133065192    I believe the intake manifolds left the factory painted the same Healey Green as the engine.  In any event, I painted mine with the Moss spray can engine paint in 1999 and it's still fine.  The intake manifold doesn't get that hot.  The key to any paint durability is how clean the surface is when you paint it.     Steve Byers HBJ8L/36666 BJ8 Registry AHCA Delegate at Large Havelock, NC            From: Healeys [mailto:healeys-bounces at autox.team.net] On Behalf Of Bruce Steele
 Sent: Monday, February 20, 2017 12:56 AM
 To: 'Healey List'
 Subject: [Healeys] Intake manifold finishes      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 Steele Brea, CA 1960 BN7       
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