> -----Original Message-----
> From: James Barrett [SMTP:jamesbrt@mindspring.com]
> Sent: Friday, February 19, 1999 4:39 PM
> To: Theo Smit
> Cc: tigers@autox.team.net
> Subject: RE: Fuel pump leaks/no tiger content/ but a moral/ NASCAR
>
> At 09:16 AM 2/19/99 -0700, you wrote:
[] Snip!
> >Theo Smit
> I normally turn on the ignition and run the
> electric fuel pump for a while before I start my Tiger
> or Alpine. With the oil pressure switch you would have to
> crank the motor to get the fuel pump to work (build up
> oil pressure to activate switch). Might as well go back
> to a manual pump.
> James Barrett Tiger II 351C and others
>
[] But what is the purpose of running the pump before the engine is
started? I can think of two reasons: one, that the car hasn't been driven in a
long time and the fuel bowls are dry; and two, that pressurizing the fuel line
might alleviate some minor vapor lock in the fuel line (which won't affect the
car's starting, since you're doing that on the fuel in the float bowls).
If you want, you can include a bypass switch on the fuel pump to allow
it to run before the engine is started. The idea of the oil-pressure switched
fuel pump is to automatically disable the fuel pump if the engine is stopped for
some reason. How you get it going initially is left as an exercise for the
reader :)
Theo Smit
tsmit@novatel.ca
B382002705
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