Facet fuel pump

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67-2door
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Facet fuel pump

Post by 67-2door »

My minor is fitted with a Facet electric fuel pump which ticks all the time that the ignition is turned on. Is this normal? I believe the standard pump stops ticking after it's built up pressure, should the Facet pump do the same?
Thanks.
Neil.

bmcecosse
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Re: Facet fuel pump

Post by bmcecosse »

No idea- but I rather suspect they tick all the time. Someone will know for sure!
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Mogwai
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Re: Facet fuel pump

Post by Mogwai »

Yes its normal for a facet pump to run constantly. also do you have a pressure regulator as well as some of the facet pumps can run at quite a high pressure
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67-2door
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Re: Facet fuel pump

Post by 67-2door »

No, there's no pressure regulator it runs a pipe straight to the carb.
Will it be doing any harm?

MarkyB
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Re: Facet fuel pump

Post by MarkyB »

What pressure does it deliver?
I think the carb is expecting about 2psi.

"Once you break something you will see how it was put together"
Mogwai
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Re: Facet fuel pump

Post by Mogwai »

If its a higher pressure pump it could overwhelm the float jet & cause mixture irregularities or flood the engine in extreme cases. My MG has a facet pump which runs at about 8psi and is reduced with a regulator to about 1.5-2psi for the Weber DCOE on it as they can be sensitive to pressure, more so than an SU
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67-2door
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Re: Facet fuel pump

Post by 67-2door »

I've absolutely no idea what pressure it runs at, it was on the car when I got it.
Is the delivery pressure marked on the pump anywhere?

Mogwai
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Re: Facet fuel pump

Post by Mogwai »

does it match one of these http://www.merlinmotorsport.co.uk/FUEL- ... index.html (lots to choose from)
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bmcecosse
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Re: Facet fuel pump

Post by bmcecosse »

If it's on the car and not giving any problems - don't lose sleep over it!
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