ACDelco or Carter Fuel Pump for 1970 350 SP engine

Discussion in 'Parts wanted' started by Michael Tuttle, Aug 3, 2020.

  1. Michael Tuttle

    Michael Tuttle Well-Known Member

    Looking for a NOS ACDelco or New Carter mechanical Fuel Pump for my 1970 GS.
     

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  2. mikethegoon

    mikethegoon Well-Known Member

    Is that stock GM fuel line?
     
  3. Michael Tuttle

    Michael Tuttle Well-Known Member

    Stock Fuel line. I found an NOS AC Fuel pump on eBay, got it Friday and installed today. Thanks
     
  4. mikethegoon

    mikethegoon Well-Known Member

    Hey that's an idea. Time for me to change pump on gs 350. Trouble is when I bought replacement repop line - don't remember if it was for 2 or 3 port pump. Also didn't remember the line placement running. Thru other lines..
     
  5. Michael Tuttle

    Michael Tuttle Well-Known Member

    So quick to change a pump on this car it was a delight to work on. Did I understand you correctly that you were unsure of the line routing? If so, took a few pictures for you.

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    mikethegoon likes this.
  6. mikethegoon

    mikethegoon Well-Known Member

    Ya I'm on the bay right now. I had tried to bend fuel lines for my engines- but after half a dozen attempts I gave up. What i can see with second set of pics is type of outlets , thanks. That tells me part #. Also the gm replacement is money well spent. The chrome TA pump that leaks will join the mib airtex pump in a special box to be placed in alley.I did not think of the bay+was gonna order carter pump mon-NOT.gret idea, beautiful car. Rats my repo line doesn't curve right out of filter,and the support is right there too.
     
  7. mikethegoon

    mikethegoon Well-Known Member

    I replaced pump on my 68 2barrel car and it was like tying your shoes while They were on top of your head, No room line leaked, etc.
     
  8. Michael Tuttle

    Michael Tuttle Well-Known Member

    The correct part number I purchased was AC Delco #40926
     
    mikethegoon likes this.
  9. Michael Tuttle

    Michael Tuttle Well-Known Member

  10. mikethegoon

    mikethegoon Well-Known Member

    I have had this for a while IMG_20200816_073543.jpg IMG_20200816_075149.jpg
     
    Last edited: Aug 16, 2020
  11. mikethegoon

    mikethegoon Well-Known Member

    With the cold setting in, I had to start working on this project. Using NOS pump from bay and repo line.Line didn't fit but was able to move it around. The fittings felt pretty good as they were tightened The pump was 100the line maybe 40.Car still wouldn't start. Gas 6 months old Half the plugs wet other half like new. New plugs - rotor and cap. 8f it weren't for corrosion on cap- I would have gone back to points. That's how much BS TA pump caused. Trying to start engine while low line pressure etc. After all that I moved plug wires to a spot in front of ram air support. Turned the key motor fired almost immediatelyI should buy another pump for spare.
     

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