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Old Oct 27, 2021 | 05:15 AM
  #1  
David Ernst's Avatar
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Valve Covers

Hello everyone,
Does anyone know what material the valve covers are made from? I have a crack in mine and would like to repair vs replace. I have the old style before Ford decided to make it a PITA to change vct solenoids. I'm looking to Tig weld or braise them but unsure if they are cast aluminum or magnesium. Thanks for your help!
 
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Old Oct 27, 2021 | 08:45 AM
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I would think cast aluminum . But in any case heating them may warp it . How about a junk yard one .
 
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Old Oct 27, 2021 | 04:03 PM
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Depending on the location of crack, clean it to metal, roughen the surface, then trowel some J B Weld over the crack. If trying to make it stronger, no good. If just trying to stop a leak in a non stressed area, it'll work.
 
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Old Oct 29, 2021 | 01:42 PM
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Originally Posted by tbear853
Depending on the location of crack, clean it to metal, roughen the surface, then trowel some J B Weld over the crack. If trying to make it stronger, no good. If just trying to stop a leak in a non stressed area, it'll work.
I would try this first.
I've actually done this on my old '86 Dodge truck; it had steel valve covers, but JB Weld will work on alloys also.
 
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