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[Healeys] B/U fuel pump question

Subject: [Healeys] B/U fuel pump question
From: tfsbj7 at mindspring.com (Skip Saunders)
Date: Sat, 17 Sep 2011 10:02:04 -0400
References: <016A344AEC984BCCA33FEB17F90D7E6E@atc0f226cd3237>
It probably would work ok in cool weather when the car is moving with enough
speed to ensure lots of outside air is getting into the engine compartment.
But, if your car is like most, the heat in the engine compartment would
easily make the fuel lines to the pump susceptible to vapor lock.   When
that happens the "suck" part of the pump (trying to draw fuel from the tank)
would become challenged.   (Talk to anyone who owned an early 240Z car... )
The Healey folk were quite wise when they placed the fuel pump in the back
where things were cooler.   Vapor lock in a line downstream from the pump
doesn't affect the pump's prime, so it will continue applying pressure that
can blow the vapor lock (should it occur) through the lines.   "sucking on
vapors" isn't very effective.

My recommendation is pass on recommendations from your friend.

-skip-
BJ8, BJ7 

-----Original Message-----

Has anyone any experience with a backup fuel pump that could be mounted at
the carburetter feed point?

The reason I ask is that a friend who runs a British car shop nearby says
one of the small pumps can be installed at the fuel line where it feeds the
float chambers.

Will a low pressure Facet (or similar) pump pull all the way from the petrol
tank, and through the SU as well?

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