Classic Mustangs (Tech) Technical discussions about the Mustangs of yester-year.

Cracked Intake manifold

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Old Jul 10, 2012 | 05:57 AM
  #1  
DejanM31's Avatar
DejanM31
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Joined: Jun 2011
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From: Slo
Default Cracked Intake manifold

I have noticed a crack on 2 brl intake manifold (Ford 1969 351W engine). Can this be fixable and how?

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Old Jul 10, 2012 | 06:17 AM
  #2  
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kenash
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Hi,
Cracks, for the most part, in cast iron can be brazed. You need to seek an experienced welding shop. Cast iron is tough, in that, you have to be careful with the application of heat has to be slow as it has a tendency to want to can crack even more. Another possibility, is to use a Dremel with a carbide cutting tip and create slight grove in that crack, then fill with JB Weld, smooth and repaint. Seeing the intake is in place, have you taken an engine vac reading? This will tell you if that crack is all the way through to the valley and you have a vac leak. If your reading is 18-20" of vac, I'd leave it alone until such time as you remove it.
Good Luck!
Old Jul 10, 2012 | 11:58 AM
  #3  
Iskwezm's Avatar
Iskwezm
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Joined: Feb 2006
Posts: 1,538
From: So. Cal,the O.C.
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probably be easier to find another intake.Pretty sure they are easy to find when they get ditched for a 4 bbl.
Old Jul 10, 2012 | 12:11 PM
  #4  
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crunchyskippy
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Joined: Jun 2006
Posts: 528
From: Northern Virginia
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I have one that I would give you if you were close. It must weigh 40-50 lbs so I don't think its even worth shipping. I'm in Northern Virginia if interested.
Old Jul 10, 2012 | 03:00 PM
  #5  
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jlg2002
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Joined: Jun 2006
Posts: 1,483
From: Fontana, California
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That sucks. I can't think of an on-car repair except for the metal putty epoxies. It's time for a new IM unfortunately .
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