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Re: TR6-wiring an electric fuel pump

To: "Keith S. Ehrlich" <kehrlich@dyax.com>
Subject: Re: TR6-wiring an electric fuel pump
From: Randall <randallyoung@earthlink.net>
Date: Wed, 04 Aug 1999 10:27:33 -0700
Cc: triumphs@autox.team.net
References: <37A86E37.112F@dyax.com>
Some early VW's ('72 Rabbit ?) used a relay that sensed pulses from the
points to control the electric fuel pump.  Probably too expensive new,
but you might find one in a junk yard, on about anything with Bosch fuel
injection and points.  The relay is real distinctive, it has a fuse clip
sticking out the top.  

I like the oil pressure switch idea better, but instead of trying to tap
into the existing sender, I'd go for a separate switch.  You should be
able to find a switch that closes around 5-10 psi in a speed shop.

Randall

"Keith S. Ehrlich" wrote:
> 
> A number of folks at VTR suggested I replace my mechanical fuel pump
> with a low pressure electric pump to better feed the Webers. In the
> interest of safety, how could the electric pump be wired to guarantee
> its shutoff in the event of a collision? I heard one concept about
> routing the wiring through the oil pressure sensor, which sounded nifty.
> Any other suggestions?
> 
> Thanks
> Keith Ehrlich
> 74 TR6
> 
> PS BTW the intermittent power loss I suffered a few weeks back turned
> out to be the mechanical fuel pump ( now replaced), which apparently was
> slowly going bad to the point where it could not keep up with the Webers
> at idle. The bowls would go almost dry before I'd drive off and the call
> for fuel under acceleration would finish off what fuel was left thus
> causing a power loss to follow until the fuel would begin to flow back
> into the bowls under higher RPM pressure. Nasty little problem to find.
> Thanks to all the listers who helped me bracket my way through the
> systems to isolate it.

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