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Thread: Caponord fuel pump alternative

  1. #1
    apriliaforum newb
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    Caponord fuel pump alternative

    Do you have in mind, an alternative fuel pump that fits exactly on the Caponord?

  2. #2
    apriliaforum Member skvrnsk's Avatar
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    http://moto-abruzzo.com/aprilia-capo...-level-sensor/

    I bought recently this one: Bosch 0580453427 , but it's a 1-2centimeers shorter than the OEM pump. You can still use it, just need to secure it from moving with zip tie... just for the peace of mind.
    Last edited by skvrnsk; 12-04-2017 at 10:56 AM.

  3. #3
    apriliaforum expert Stu_O's Avatar
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    Quote Originally Posted by BILLYS View Post
    Do you have in mind, an alternative fuel pump that fits exactly on the Caponord?
    Here's my on-line review at Amazon for the Denso pump I used.

    Click image for larger version. 

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    Last edited by Stu_O; 12-04-2017 at 10:52 AM.

  4. #4
    apriliaforum Member skvrnsk's Avatar
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    So it is basically same as mine with its shorter body. I didn't measure mine just spotted the difference in height. In that case, I assume there's no chance to buy an alternative pump with exactly same length. Mine cost me about $35.
    Last edited by skvrnsk; 12-04-2017 at 11:30 AM.

  5. #5
    apriliaforum expert Stu_O's Avatar
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    Quote Originally Posted by skvrnsk View Post
    So it is basically same as mine with its shorter body. I didn't measure mine just spotted the difference in height. In that case, I assume there's no chance to buy an alternative pump with exactly same length. Mine cost me about $35.
    I'm sure they're out there. I just got tired of doing the research re: OAL, spigot diameter, relief valve setting, etc. I'm sure yours will be okay, but I'd try to shim it as I did mine, so the hook on the module holds it in place. Here you can see the difference between the OEM and the Denso pump

    Click image for larger version. 

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    And here's the OEM pump/hook relationship I restored with the shim ring on the new pump

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    Last edited by Stu_O; 12-04-2017 at 12:00 PM.

  6. #6
    apriliaforum Member skvrnsk's Avatar
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    Why did You guys change Yours? Pump failure or just prophylactically?
    Mine was working fine, fuel was delivered but there was extremely loud whizzing/buzzing noise during priming and I couldn't stand that anymore. By extremely loud I mean way louder than it should be. It wasn't always like that, but there was no pattern in fuel amount or air temperature, so I couldn't figure it out what was causing this noise.
    Last edited by skvrnsk; 12-04-2017 at 12:08 PM.

  7. #7
    apriliaforum expert Stu_O's Avatar
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    Quote Originally Posted by skvrnsk View Post
    Why did You guys change Yours? Pump failure or just prophylactically?
    Failure in the extreme LOL! My wife and I were just returning home, when the bike started chugging and stuttering badly if I tried to increase throttle. It chugged its last chug as we rolled into the driveway. The relief valve on the fuel pump failed, sending virtually all pressure and flow out the bottom of the pump. In this pic, I'm lightly holding my finger tip over the outlet pipe.

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    Last edited by Stu_O; 12-04-2017 at 12:33 PM.

  8. #8
    apriliaforum newb
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    Thank you for your answers.

    I want to replace mine because, i left my Capo for about one year without using it.
    When i tried to use it the fuel pump did n't prime, and i could n't start the engine.
    I emptied the tank and took off the pump, i checked it and i realised that it was stucked.
    I disassembled it, and i found that the 'fan' was also partially broken.
    Last edited by BILLYS; 12-05-2017 at 03:41 AM.

  9. #9
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    These parts have the same in - out pipe and body diameter with the original fuel pump?
    The shape of the cable connector was the same?
    The only modification concerned the length of the pump?

  10. #10
    apriliaforum Member skvrnsk's Avatar
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    That's correct. Everything is the same, except metal body heigth.

  11. #11
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    2001 Moto Guzzi V11 Sport, 2002 Aprilia Caponord, 1983 Moto Guzzi 850 LeMans III (sold), 1983 Yamaha 650 Turbo (sold), 1972 Honda CB750 (sold), 1981 Moto Guzzi V50 III (totaled), several Vespas and one Lambretta

  12. #12
    Honest always, feared often Micah / AF1 Racing's Avatar
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    Walbro (before they were Chinese junk) 255 series pumps served as replacements in a few bikes I worked on.
    Diminished expectations is the key to happiness in life.

    Micah Shoemaker
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  13. #13
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    Thank you for your answers.
    I ordered Bosch 0580453427 because i found it easier.
    Also the specs was ok.

  14. #14
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    I noticed that the fuel pump strainer is also for replacement.
    Do you know an alternative?

  15. #15
    apriliaforum Member skvrnsk's Avatar
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    You mean main fuel filter or this one under the pump attached to it? If that second, I have no idea.

    https://photos.app.goo.gl/N6B9oVAOVbC2aiNc2
    https://photos.app.goo.gl/93HqfEBPs3KzJ8uS2

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