Noisy elec pump

Discussion in 'Fuel and Air Systems' started by Garys72Duster, Oct 13, 2018.

  1. Garys72Duster

    Garys72Duster Well-Known Member

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    Just got a 70 Dart / 440 with a Paxton blower and electric fuel pump. Previous owner said it had to have an electric pump due to 7 or 8 pounds of boost. I guess that's true. But I don't like the noisy sound that the pump makes. I mounted some hard rubber chair leg pads between the pump and frame, but that didn't help much. What kind of rubber do you use to quiet down the pump , or is there any other way to do it? Any other methods anyone has tried? Thanks
     
  2. 512Stroker

    512Stroker We are all here because we are not all there.

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    Common problem with the older style Holley pumps.
    I fought this for a long time with no luck.
    I understand the new style and in tank pumps are very quiet.
    Good luck
     
  3. Garys72Duster

    Garys72Duster Well-Known Member

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    Thanks! I noticed when it isnt bolted to the frame, its fairly quiet. So going to try and find a way to isolate it, or do a float mount in some way.
     
  4. DrCharles

    DrCharles Well-Known Member

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    You can probably find something suitable here :)
    McMaster-Carr

    Don't forget that hard line, or stainless braided line, can also transmit a lot of noise to the body. I can't really hear it much over the dual 3" exhaust anyway:rolleyes:
     
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    • mopardude318

      mopardude318 Well-Known Member

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      you can try using a piece of rubber from an old semi truck mud flap.
       
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      • AJ/FormS

        AJ/FormS 367 FormS clone 3.09-1.92-1.40-1.09-.78od 3.55s

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        Mount the pump to the flap, and then screw the flap to the frame. make sure the hard lines are allowed to move around with the pump
         
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        • DrCharles

          DrCharles Well-Known Member

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          For crying out loud, spend $2.09 each for a pair of these! Semi truck mud flaps... hmph ;)
          McMaster-Carr
           
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          • Dennis H

            Dennis H Well-Known Member

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            It’s what they do.
             
          • grjammer

            grjammer FABO Gold Member FABO Gold Member

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            just make sure to ground the pump if you end up isolating it that much. A good frame ground is a safety thing
             
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            • DrCharles

              DrCharles Well-Known Member

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              It needs a ground wire if vibration-isolated properly anyway... putting a slab of rubber under the pump doesn't do much good if the bolts are rigidly attached at each end to the pump and the frame :)
               
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