At 04:47 PM 2/19/99 -0700, you wrote:
>
>
>> -----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
Theo,
My Tiger and Alpine start better when the fuel is at
the proper level in the fuel bowls. I like to have the motor
start as soon as I hit the starter. If I hit the starter
without waiting for the fuel pump to do it's thing I have to
crank the motor over several times.
Yes I know that an additional switch could bypass
the oil pressure cutoff, but that is just one more thing
to handle when starting. I have used a relay with an RC
constant to do similar things (like pre-oil the motor)
but after a few years things fail. The oil pressure switch
is a good safty idea in anycase. Now, how about a roll over
switch and matching fuel tank roll over "stopper".
James Barrett Tiger II 351C and others
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