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Hot Rods Carb hits fuel pump

Discussion in 'The Hokey Ass Message Board' started by Boden, Nov 27, 2019.

  1. Boden
    Joined: Oct 10, 2018
    Posts: 747

    Boden

    What do I to to fix this. My rear carb hits my fuel pump on my flathead. It is a racing weiand intake so the carbs are spread apart farther than normal. I’m sure someone has run into this problem. [​IMG]


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  2. I have a different manifold than you but I encountered the same problem. By undoing the screws that hold the pump together, you can rotate it so the inlet, outlet are in different positions.
     
  3. Boden
    Joined: Oct 10, 2018
    Posts: 747

    Boden

    It’s not that. I tried thag. But that is clear. It’s the mating surface that hits


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  4. Budget36
    Joined: Nov 29, 2014
    Posts: 13,173

    Budget36
    Member

    Electric fuel pump is an option.
     
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  5. Inked Monkey
    Joined: Apr 19, 2011
    Posts: 1,834

    Inked Monkey
    Member

    Pic of the pump? I've seen a couple different styles. Maybe one gives you more room
     
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  6. seb fontana
    Joined: Sep 1, 2005
    Posts: 8,442

    seb fontana
    Member
    from ct

    Post pic, may be able to remove material from pump or carb?
     
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  7. GordonC
    Joined: Mar 6, 2006
    Posts: 3,140

    GordonC
    ALLIANCE MEMBER

    Can you put some short spacers under the carbs to raise it enough to give you the space you need?
     
  8. gimpyshotrods
    Joined: May 20, 2009
    Posts: 23,263

    gimpyshotrods
    ALLIANCE MEMBER

    You need an offset riser. They used to be out there. Dig around.

    I will look took around, too. Someone else needed one here, too, somewhere. Maybe I will render one in CAD, and see about making some.
     
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  9. Boden
    Joined: Oct 10, 2018
    Posts: 747

    Boden

    Yep. I’ve been looking for a long time. Can’t find one. Thansk for the help. I made a post looking for one but no one responded and moved on thinking I need to figure something else out.


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  10. gimpyshotrods
    Joined: May 20, 2009
    Posts: 23,263

    gimpyshotrods
    ALLIANCE MEMBER

    I called in a favor, and have a regular 1" spacer on the way over. I will model it, and then make an offset model.

    If someone out there has a DXF, or otherwise, of a 3-bolt Stromberg base, I can whip out a model in under an hour.
     
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  11. Just a Q for the uniformed.....=ME. Are all FP towers clocked the same? If not- To the OP, Maybe a different year/model?
     
  12. gimpyshotrods
    Joined: May 20, 2009
    Posts: 23,263

    gimpyshotrods
    ALLIANCE MEMBER

    What is the distance from the stud on the back to the fuel pump flange?

    Side rear side of stud, to flange edge.
     
  13. Boden
    Joined: Oct 10, 2018
    Posts: 747

    Boden

    I have a Holley 94 3 bolt base. Could you use that?


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  14. gimpyshotrods
    Joined: May 20, 2009
    Posts: 23,263

    gimpyshotrods
    ALLIANCE MEMBER

    I believe so.
     
  15. 19Fordy
    Joined: May 17, 2003
    Posts: 8,025

    19Fordy
    Member

    Just wondering? Why is your oil filter canister at such an angle?
     
    Last edited: Dec 1, 2019
  16. gimpyshotrods
    Joined: May 20, 2009
    Posts: 23,263

    gimpyshotrods
    ALLIANCE MEMBER

    If you put the fuel pump in, and then sit the rear carburetor on top of the studs, how much do you need to move it forward to get it to clear?
     
  17. V8 Bob
    Joined: Feb 6, 2007
    Posts: 2,966

    V8 Bob
    ALLIANCE MEMBER

    You're probably trying to use the wrong fuel pump. Phil Weiand knew what he was doing! A pre-'49 post war pump should fit OK, but may need a modified push rod. You would be much better ahead to just swap that early style intake for a later 8BA style, like the engine/car you have. The carbs will sit properly angled and you'll have a generator mount.
     
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  18. Boden
    Joined: Oct 10, 2018
    Posts: 747

    Boden

    I am using a early fuel pump and early fuel pump stand


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  19. Angry Frenchman
    Joined: Feb 12, 2006
    Posts: 1,775

    Angry Frenchman
    Member

    Supper clean engine! But could u add a pic looking straight down of the intake please. I don't under stand why an 8ba pump is not fitting. It should.

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  20. Boden
    Joined: Oct 10, 2018
    Posts: 747

    Boden

    It’s a mix match of parts. It’s a 8ba motor with a 59a intake with a pcv valve. It will be running at 46-48 fuel pump and fuel pump stand with a cut down 8ba fuel pump pushrod. My rear carburetor hits the front of my fuel pump. No matter which way I clock the pump it still hits. The carburetor has to move forward. My uncle has the same problem. I need this piece. Can anyone find one or have one. I have looked for weeks now. [​IMG] you can see how it lifts the carb up and moves it forward just enough to clear the pump.


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  21. Cosmo50
    Joined: Sep 8, 2011
    Posts: 226

    Cosmo50
    Member
    from California

    Can you cut the bottom of the pump stand off and reclock it? I saw some pictures of 49 pump stands that are turned towards the driver side about 45 degrees. Or make a spacer that will turn it 45 degrees towards the driver side?
     
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  22. gimpyshotrods
    Joined: May 20, 2009
    Posts: 23,263

    gimpyshotrods
    ALLIANCE MEMBER

    My example 3-bolt spacer arrived at my shop today. Unfortunately, I am out at the home office until Saturday.

    Once I can get it, I will render it in CAD, and see if I can get some time on the mill.

    I figure and inch-and-a-half up, and an inch-and-a-half forward ought to do it.
     
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  23. tubman
    Joined: May 16, 2007
    Posts: 6,913

    tubman
    ALLIANCE MEMBER

    Wait a minute. One of your pictures shows a Weiand manifold, and another shows a Fenton. Which is it? From your previous posts, I believe that you have a Weiand. It looks to me that a stock 8BA fuel pump stand would probably be the answer. Have you tried one?
     
  24. gimpyshotrods
    Joined: May 20, 2009
    Posts: 23,263

    gimpyshotrods
    ALLIANCE MEMBER

    He's showing an example of the offset spacer that he needs. It was once a thing on the market, but has been lost to history.
     
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  25. tubman
    Joined: May 16, 2007
    Posts: 6,913

    tubman
    ALLIANCE MEMBER

    I will reiterate : Has he tried an 8BA fuel pump stand? If that doesn't work, I will have to admit that it is possible to mismatch components to the extent that you can arrive at a combination that just won't work.
     
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  26. Boden
    Joined: Oct 10, 2018
    Posts: 747

    Boden

    I can’t use a 8ba stand because then I won’t have a breather/filler


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  27. Boden
    Joined: Oct 10, 2018
    Posts: 747

    Boden

    It’s not bolted down


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  28. Boden
    Joined: Oct 10, 2018
    Posts: 747

    Boden

    That is what I started thinking last night in bed. That is last resort at the moment. Due to the fact I can’t weld aluminum


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  29. Boden
    Joined: Oct 10, 2018
    Posts: 747

    Boden

    Sounds perfect. Thanks so much sir!


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  30. Andy
    Joined: Nov 17, 2002
    Posts: 5,115

    Andy
    Member

    An 8BA stand is clocked around. No breather tube though. I made an adapter plate for my set up. It was a dual bolt pattern piece or 3/8 al. with the holes clocked around. The manifold holes were countersunk for flathead screws and the pump holes were tapped. It moved the pump around like a 8BA.
     
    Last edited: Dec 3, 2019
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