i've just fitted a facet electric pump, and it does not appear to be pumping fuel through to the carbs.

i know that they are noisy but it is like nuts ratteling in a bucket.

i've tried to prime it by pouring petrol down the pipe into it, and i've checked all pipes for kinks and air leaks.

what are the possible problems ?

ditch

prime it with vaseline...............

They should rattle away until pressure is reached then cut out. I know it sounds silly but are you sure it is mounted with input and output correct and that the terminals are correct. I presume the terminals may make a difference.

I had no issues priming them in the past even with them mounted high up on cars.

Steve

sounds like it may be running the wrong way so its cant prime itself so its noisy. that or there is a lot of air in the pipe stopping it from actualy getting enough fuel to prime, i had that problem.

Usually it taps away till they build up pressure and then go quiet. If it’s not a new one I’d suspect a stuck valve, try blowing through it from ether end, might unstick it, not sure I like the idea of priming it with Vaseline, that stuff is like silicone and will only clog up jets and filters, should not even need priming.

which type of facet?

solid state (metal cube) or diaphragm (cylinder)?

there is usually one wire to 12 V the earth is via the body.

have the s.state one and it is quite noise but does quieten down when primed.

never needed to prime it. the s.state ones are push type so should be mounted low near the tank, having said that I did have one mounted in the engine bay and it worked.

is it a new pump?
again if s.state, there is a small filter - inline metal cylinder. thse can get blocked.

remove it and tap the crap out and refit - worked so far for me.

Hi Ditch, I fitted a solid state Facet to my racing A40 and it always ticked very loudly. It was never like an SU pump or Facet Red Top that do go quiet when primed. In a racing car it's not a problem but I can imagine how irritating it must be on the road.

If you change to a Red Top, you will also need a Filter King regulator so not a cheap option but it will certainly be much quieter.

atb

John

hi mate
a friend of mine got caught out by a bung in the pipes on the pump
cheers les g

quote:

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Originally posted by Mr Whippy
not sure I like the idea of priming it with Vaseline, that stuff is like silicone and will only clog up jets and filters, should not even need priming.

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Do not choke it with vaseline... thats what you use to prime a rover v8 oil pump!

They make lots of noise if you have any air leaks, only shut up when full of fuel unless you have a fuel return in which cas they will keep clicking away so:

So if you have a fuel return you need to restrict this, usual thing is an old carb jet pushed into the tank return tube and clamped with a jubile clip, as long as the carbs do not flood this should slow things down.

If you do not have a return then pull off the pipe feeding the carbs and block it, this should stop the pump dead in its tracks after 2 seconds as the pressure builds, if not then you have an air leak between the pump and the tank.

Ideally the pump wants to be level with the bottom of the tank, they do not like pulling fuel uphill just pushing it forward.

Regards Mark

I guess that you haven't got a return as you're running carbs - is that correct? If you have a return, ignore the following advice!

If so, there may be a few causes:

1. You have a fuel leak, and are pumping your fuel everywhere!
2. You are pumping at too high a pressure, and the pump is overcoming the float valves - possibly flooding the engine.
3. You have the pump's fuel in and out pipes connected the wrong way around.
4. Your pump is faulty.

Does the engine run?

[Edited on 7/7/08 by David Jenkins]

Problem solved

it was the pressure regulator, it was set closed. i took the thing appart and set the screw on the top and started the thing running. the pressure guage shows a marked rise in the pressure so it is pumping fuel.

i was having a senior moment and forgot about the regulator. it is mounted upside down and when i losened the top of the spring fell out. is there anything i.e. a seal or diafram that i'm missing?

ditch