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TWL: Bumble Bees Can't Fly (about fuel pumps)


Subject: TWL: Bumble Bees Can't Fly (about fuel pumps)
From: AKAMA (

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    Hi,

    We are in the process of designing an integrated fuel
    polishing/transfer/priming system for AKAMA. It will be along the lines of
    what has already been written, so I'll spare you all the details.

    We received the following information from a huge, reputable pump vendor,
    "The Walbro pump is an excellent priming pump but not suitable for fuel
    polishing because max discharge pressure is only 7 psi. It may work on a
    clean filter, but will quit as the filter starts to get dirty. A gear pump
    would be a better choice. However, neither are (sic) flow through and should
    be on a tee/valve. We have DC gear pump 1gpm and up."

    Now, nearly everyone is using the Walbro pump as far as we know. We'd like
    to hear from those of you who are using it as to whether you have noticed
    that the pump is a bit anaemic for the use, as has been suggested by the
    pump vendor. We only want to build this once!

    Maurice & Louise-Ann Nunas
    M/V AKAMA
    Pier 2, Ponggol Marina
    Singapore





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