Reply To: Water pump – ‘56 Firestone 30HP

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January 12, 2021 at 9:31 am #227521
frankr
Participant

    What the OP didn’t mention is that there is a stainless plate under the cover plate. As I recall, there is only one bleed hole in the stainless plate, not four. Also, the double stacked bailer pumps DO have a bleed hole to pass water from one section to the other. That is necessary to keep the bailer impeller wet. Whether or not it also keeps exhaust out of the pump is a good question.