Safest/easiest way to remove manifold

1968 -1970 Mopars

  1. pearljam724

    pearljam724 Well-Known Member

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    I have an aftermarket Edelbrock manifold I’m in process of removing to address an oil leak back by the firewall. I have everything removed including manifold bolts. I’m good with mechanical stuff as a do it yourself at home type of guy. But, this is my first time removing a manifold.
    I know there’s a ton of silicone under it from someone previously. Therefore I feel it’s not going to come easy tapping around it with a rubber mallet. What’s the safest and easiest approach without risking the manifold ? Appreciate any tips
     
  2. Dajkzo

    Dajkzo FBBO Gold Member FBBO Gold Member

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    Hi,
    I find working a large flat screwdriver under one of the corners will break it loose, or a pry bar under the flange for the exhaust crossover. The modern sealants like Permatex Ultra tend to stretch so a hammer blow might not pop it loose.
     
  3. Ironbuilt

    Ironbuilt FBBO Gold Member FBBO Gold Member

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    • Ghostrider 67

      Ghostrider 67 FBBO Gold Member FBBO Gold Member

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      As in the above answer, cut away as much of the silicone as possible. Tap a plastic wedge under the front edge to pop up the manifold a bit, then tap another in at the back edge. The first one will compound the leverage of the second one and it should pop up.
       
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      • pearljam724

        pearljam724 Well-Known Member

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        Thanks, I appreciate all tips. It’s ready for a try in morning. I wanted some advice before so. I have a 360 with RPM Performer. There’s really no good place to pry up without using the heads or timing chain cover or cut but the front 2 corners. I will cut across the front. I’ll stay off the heads. I don’t have plastic tools. I suppose a thin paint scraper would be ok to push in through the front, maybe some very thin wooden wedges would be nice ?
         
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        • Ghostrider 67

          Ghostrider 67 FBBO Gold Member FBBO Gold Member

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          wood is ok if they are hard wood, soft wood will just collapse..
           
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          • Ironbuilt

            Ironbuilt FBBO Gold Member FBBO Gold Member

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            You can always purchase plastic putty scrapers from Lowes/Home Depot for just a few dollars. Hammer them in between the head and the manifold.
             
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            • 1 Wild R/T

              1 Wild R/T Well-Known Member

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              Been wrenching for 40+ years, never used a plastic prybar to remove a manifold in my life & I've worked on lots of high $$ pretty stuff... You can't get stupid but a steel prybar or large screwdriver is fine... Actually the last manifold I popped lose a few weeks ago I used a carpenters super bar... Unknown.jpg
               
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              • mopar 3 B

                mopar 3 B Well-Known Member

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                The coolant has been drained?
                 
              • pearljam724

                pearljam724 Well-Known Member

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                Yeah buddy, everything out of way. Including bolts and coolant. I left carb on until later, gonna freshen up manifold once it’s removed.
                 
              • pearljam724

                pearljam724 Well-Known Member

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                I ll start by cutting as much as possible. Try a plastic puffy knife irst. Then resort to the little carpenter pry bar if it’s too stubborn. Lord, I hope this stops my massive oil leak, lol ! I know the intake leaks at high rpms. But, I’m fearing the main seal is leaking too. I’ve observed it a hundred times. It’s very difficult to decipher exactly where it’s coming from.
                 
                Last edited: Sep 1, 2019
              • Ironbuilt

                Ironbuilt FBBO Gold Member FBBO Gold Member

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                Remind me not to let you work on my big block. :lol:
                 
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                1 Wild R/T Well-Known Member

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                I won't have to remind ya... I have enough to keep me busy without going cross country..
                 
              • Ironbuilt

                Ironbuilt FBBO Gold Member FBBO Gold Member

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                We don't really want you Commies from Cali here anyway. :thumbsup:
                 
              • 1 Wild R/T

                1 Wild R/T Well-Known Member

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                The Commies are by the coast... Here in the valley is where we keep the folks who work for a living... Or apparently steal... But thats another post...
                 
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                • Ironbuilt

                  Ironbuilt FBBO Gold Member FBBO Gold Member

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                  :lol::lol::lol:
                   
                • Ironbuilt

                  Ironbuilt FBBO Gold Member FBBO Gold Member

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                  Hurry up and update your build thread...I'm bored!!!
                   
                • 1 Wild R/T

                  1 Wild R/T Well-Known Member

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                  My build thread currently is on hold, my finish body guy has put in 18 hours so far & has semi final blocked the fenders, doors, hood, deck lid & one quarter... Once he's done with the last quarter he'll dump on one last coat of high build primer & then go around it with 400... And finally with 500...

                  After that I need to respray the bottom of the car.. Currently it's shiny red & I've decided to replicate dip primer...

                  Then the booth.... Once all that happens I'll have something to talk about... Currently I'm just watching the wind blow...
                   
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                  • 1 Wild R/T

                    1 Wild R/T Well-Known Member

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                    How many cars have you seen that really should have been blocked one more time? That won't be this one....
                     
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                    • Ironbuilt

                      Ironbuilt FBBO Gold Member FBBO Gold Member

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                      I have a feeling that it's going to be a beauty.
                       
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