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Mounting for Electric Fuel Pump

Discussion in 'Modified Alpine' started by woodybap, Feb 8, 2020.

  1. woodybap

    woodybap Silver Level Sponsor

    The fuel pump died 8 miles into my maiden travel. Forunately I was within pushing distance of a friend's house where we temporarily installed an electric fuel pump using one of the mounting bolts of the brake servo. Looking for suggestions on a better permanent location for the pump and pressure rgulator.
     
  2. absunbeam

    absunbeam Gold Level Sponsor

    This is an option for Alpine S3-5, MK2 location. You have a S1-2 don't you? Electric pumps work best by the gas tank I've been told, and not near exhaust pipes.
    IMG_0090.JPG
     
    woodybap likes this.
  3. Warren

    Warren Bronze Level Sponsor

    The best thing about the stock SU is it shuts off and is quiet but it is pricey, plus the MK2 has the filter in the wrong place.
     
  4. 65beam

    65beam Donation Time

    Doug Jennings installed an electric facet pump on one of my cars several years ago. He's done this to quite a few Alpines over the years. He mounts them under the car on the right side of the floor where it is vertical going up to the package tray and near the battery box . Very easy to hook to the original fuel line and the power wire can be run with the other lines. The wire can be hooked to the ignition switch or a separate switch. My power wire is wire tied to the lines. The pump is protected and out of the way.It's also setting on a thin rubber pad which quiets the pump. I've installed them on two other cars since.
     
    woodybap likes this.
  5. DanR

    DanR Diamond Level Sponsor

    For my V6's I place the Pumps just forward the spare tire mount, between the sheet metal and the rear axle "Hogs head"...

    It is near level to the bottom of the tanks and clear of the exhaust pipes. If you must mount close to the exhaust system take caution to shield from heat.
     
    woodybap likes this.
  6. alpine_64

    alpine_64 Donation Time

    A series 1/II doesn't have a spare wheel well..
     
  7. alpine_64

    alpine_64 Donation Time

    Woody,

    I mounted one on the back of the battery box. Its protected from road debris ans is near the tank on an eary car.
     
    woodybap likes this.
  8. 65beam

    65beam Donation Time

    It looks like everybody installs the pump in the same general area so it's a matter of personal preference.
     
  9. PROCRAFT

    PROCRAFT Donation Time

    I used to mount the pump on the forward trunk panel, decided what I've done here is a better deal. IMG_20200128_214454_418.jpg
     
    woodybap likes this.
  10. woodybap

    woodybap Silver Level Sponsor

    What make and model is your pump?
     
  11. 65beam

    65beam Donation Time

    Is that your fuel cell?
     
  12. woodybap

    woodybap Silver Level Sponsor

    What is a 'Stock SU'?
     
  13. alpine_64

    alpine_64 Donation Time

    The SU electric pump was used on sunbeam tigers.
     
  14. Warren

    Warren Bronze Level Sponsor

    The stock SU is sold by Sunbeam Specialties. I am not sure if it is any different from the earlier car version. For some reason the MK2's placed the filter right under the boot on the engine side of the pump. I have a car with uncut fuel lines so left it that way after much hand wringing.... my fix was to take a very fine screen and make it so it would fit into the line fitting in front of the pump. The spare tire well is a good location provided you don't have a spare there :) Any of the cheaper pumps may require a regulator and rubber mountings as they can be annoying when listening to the purrrrr of you're baby.
     
    woodybap likes this.
  15. Charles Johns

    Charles Johns Donation Time

    Most electric fuel pumps work best as PUSHERS, so mounting near the tank is best. Always install a filter BEFORE the pump where it is easy to replace or repair. Good grounding is always necessary but often overlooked, and do not forget HEAT sources. I used a Dupree on a 40 Ford for 12 years with zero trouble, but it was a carburetor car, and FI requires much higher pressure. I do not have experience with aftermarket FI pumps. Procraft has the "L" bracket bolted to the frame rail and the pump bolted to that, which looks like a very solid way to do it.
     
  16. Warren

    Warren Bronze Level Sponsor

    Sorry that I read the other postings after my comment. I'd give up a useless spare tire well to have an easily serviceable pump any day rather than a get down and dirty crawl guy to mess with the pump. The over feared fuel pump door and stock Tiger location is not so bad. May times my early Honda cycles have had a stuck float valve and dumped raw fuel onto a much hotter exhaust without becoming a Roman Candle. Clearly when changing I would pick the MK2 location though..
     
  17. PROCRAFT

    PROCRAFT Donation Time

    Carter 6# Jegs/Summit.
     
  18. PROCRAFT

    PROCRAFT Donation Time

    17 gallon mustang fuel injection tank.
     
  19. PROCRAFT

    PROCRAFT Donation Time

    And a lot of other British S......
     
  20. alpine_64

    alpine_64 Donation Time

    Yes e-tyoes, mkii and other..... Still... Better than triumph using the lucas wiper based motor on the tr6 Pi system
     

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