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Thread: Mechanical fuel pum on 350 SBC
          
   
   

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  1. 09-20-2014 03:10 PM #1
    rdobbs
    rdobbs is offline CHR Member
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    Mechanical fuel pum on 350 SBC

     



    Just got my 350 back together and when I cranked it up
    gas squirted out of the air hole on the fuel pump. Is this
    a sign of a bad diaphragm, or could something else be causing
    this problem?
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  3. 09-20-2014 03:35 PM #2
    36 sedan's Avatar
    36 sedan
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    Sounds like a bad diaphragm, check your oil to make sure no fuel went into the oil.
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  4. 09-20-2014 03:50 PM #3
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    Hotrod46
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    Quote Originally Posted by 36 sedan View Post
    Sounds like a bad diaphragm, check your oil to make sure no fuel went into the oil.
    +1. I've witnessed gas in the oil from bad pumps twice on SBC's. Can't say how many times I saw it on air cooled VW's, but that's another story.

    Mike
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