Help on fuel pump assembly

Discussion in 'Mods, Upgrades, Accessories and Products' started by Nigel H, May 23, 2020.

  1. Nigel H

    Nigel H Active Member

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    I want a fuel gauge.
    It's probably the cabin fever effect of lockdown but it seems like a good idea.
    In theory it's simple.
    Measure the pressure head and use a single chip CPU to translate into litres to drive a display.
    (By a table of course as the tank shape is hardly linear.)
    But I need access to gravity only pressure fuel...

    Not having anything more than pictures I can't tell but maybe one of you knows.
    Is there space on the inside that plastic fuel pump housing thing to take a 10.2mm
    hole drilled from below and a slim nut? That lets me directly fit a pressure transducer.
    I want the nut because the plastic looks a bit soft to just tap it.
    Basically is it worth buying one to modify or do I need a different idea?

    Specifically for a 2015 bike.
     
  2. Jez

    Jez Senior Member

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    No help here but, you pay all that money for a bike and they do not fit a gauge, I am sure Honda would be able to fit one into the display for a couple of pounds,
    I am very interested as I would also like a gauge.
     
  3. Nigel H

    Nigel H Active Member

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    <shrug> It's got all sorts of clever systems to warn you you're on reserve and count miles since the fill
    but I like simple minded. Something I can glance at and mentally say
    I'm good or Oh shit.
     
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  4. Slick

    Slick Elite Member

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    0.0-0.5 = I'm good
    0.5 and above = Oh shit!

    I'm OK with travelling 25 miles in reserve, ran out out on the M4 to work this out!
     
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  5. Nigel H

    Nigel H Active Member

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    Right. I found a relatively inexpensive fuel pump assembly on Ebay so I've ordered it to investigate drilling the right hole.
    This project is under way.
    Now I need to decide on a display style...
     
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  6. Kevin1

    Kevin1 Elite Member

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    WTF. Noooo man leave it alone
     
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  7. LRJimmy

    LRJimmy Active Member

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  8. Nigel H

    Nigel H Active Member

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    Not really. I need to strip things down a long way to be sure that my choice of pressure sensor and mounting point won't foul anything.

    and I'm feeling particularly lazy atm.
     
  9. LRJimmy

    LRJimmy Active Member

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    No worries, good luck with a cure for the laziness. I have been struggling with that one but always seem to find energy when I should be heading off to bed, then end up staying up way too late and the cycle begins again next day....

    Look forward to seeing a working prototype ;)
     

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