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  • 2 Post By Hotrod46
  • 2 Post By firebird77clone
  • 1 Post By Justin711
  • 1 Post By bipolar

Thread: Engine shuts down After 15 miles
          
   
   

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  1. #1
    Joeybar is offline CHR Junior sMember Visit my Photo Gallery
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    Engine shuts down After 15 miles

     



    My 350 engine shuts down completely after about 15 miles and a couple of red lights. Temp is at about 190, usually stays at 185 running temp. New distributor, cap, fuel pump. Holly 600 carb with Vickers Jr intake about 5 years old. Sometimes it might refire when cooled down to 135 and a dash of gasoline added to the carb. This problem is kicking my butt lately. Thanks for any ideas.

  2. #2
    Hotrod46's Avatar
    Hotrod46 is offline CHR Member Visit my Photo Gallery
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    If you have an HEI type distributor, it sounds like the module is heat soaking and shutting off. I've had them do what you describe. There is supposed to be heat sink compound under the module where it bolts to the distributor body.
    glennsexton and rspears like this.

  3. #3
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    Change the module. I think Hotrod 46 is on the money. I wouldn't trust it if it heatsoaked to a fail state.

    Next time it shuts off, isolate the cause- fuel or spark. If no spark, then check for power to distributor. HEI needs a minimum of 12AWG feed, most use 10AWG.

    But that is all assuming you are running an HEI. If you are using something more exotic like a multi spark capacitive discharge system then most problems trace to ground issues.
    Rrumbler and glennsexton like this.
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  4. #4
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    Check your tail pipe. How close is the tail pipe to your gas tank? Could be boiling your fuel and vapor locking. Fuel line close to header?
    Whiplash23T likes this.

  5. #5
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    All good advice and the one I thought of is the fuel pump if you are running an old mechanical pump, the drive pin may be worn so that as the block heats, the pin isn't long enough to drive the pump. Check the above though as those guys know a heap more than me.
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  6. #6
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    My vote is the HEI problem, but then the gas down the carb would just be a weird coincidence I forgot all about that even thought it's happen'd to me before.
    Seth

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  7. #7
    bipolar is offline CHR Junior sMember Visit my Photo Gallery
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    Could be fuel filter sucking up enough crud to block in 15 miles.
    When stopped awhile crud falls away and cycle begins anew.
    Especially prominent in crummy attempts to refinish inside fuel tank. Flakes find the screen and fall away when suction removed.
    Would also explain fuel down throat working.
    glennsexton likes this.

  8. #8
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    Quote Originally Posted by bipolar View Post
    Could be fuel filter sucking up enough crud to block in 15 miles.
    When stopped awhile crud falls away and cycle begins anew.
    Especially prominent in crummy attempts to refinish inside fuel tank. Flakes find the screen and fall away when suction removed.
    Would also explain fuel down throat working.
    Thanks for making time to try and help a fellow member. Sadly he asked that question last july 2017 and never replied to what he found.
    But thanks again for trying! Good on 'ya!

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