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Thread: 1985 ram 50 mech. fuel pump replacement

  1. #1

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    1985 ram 50 mech. fuel pump replacement

    Truck was running fine until I replaced the fuel pump. It had a pin-hole leak in the side.

    I can hear the fuel pump actuating when i turn the motor over, but no fuel is being pumped through. I put a little suction on the IN fuel line and gas flowed out easily, so I know its not an issue between the fuel pump and the fuel tank.

    Gotta prime them somehow? Any thoughts?

  2. #2

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    possibly air locked....never ran into that issue...but i would try this.....the mechanical pump has 3 outlets: the single (on 1 side of pump) is from tank, the other 2 (on other side of pump) bottom is to carb & top is return to tank. apply suction/vacuum directly to carburetor outlet of pump.

  3. #3



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    Welcome to the forum Maverick911

  4. #4

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    I'll give that a shot, RagRag.

    Thanks BMPH.

    Acquired the 50 from my grandfather who bought it new in 1987. I learned to drive in the truck, but it's only been used to haul a boat to the ramp and take off trash for the last 10 years. Needs some work.

  5. #5



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    Be sure you grab a manual in the forum's auto manual thread. They are free and they will help you get familiar with your truck.

    http://www.mightyram50.net/vbulletin...er-Source-Info

    Find the one for yours and download it to your desktop.

  6. #6

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    Looks like there was supposed to be a spacer between the FP and block. It's ordered. Will see if that fixes it tomorrow

  7. #7

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    I guess most of you guys replace the stock carb with a Weber and an elec. fuel pump?

  8. #8



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    the mikunis are fickle beasts and ethanol eats them alive - a lot of us have changed them out, others keep what they have working. Webers work best with electric fuel pumps. Welcome to the forum - pics would be nice too.
    Pennyman1
    The best Dodge that Dodge never made
    Living the D-50 lifestyle since 1980

  9. #9

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    dang your the 2nd person i could have sold a spacer to...i gotta get my act together

  10. #10



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    you're slipping Ragragtimetime - but you respond when you sell something, others not so much...
    Pennyman1
    The best Dodge that Dodge never made
    Living the D-50 lifestyle since 1980

  11. #11

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    It was the spacer. Amazing what a 1/4" of plastic can do ������

    now...onto a new thread for problem #2.........dun dun dun

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