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Author Topic: Electric fuel pump  (Read 21445 times)
RazorbackNOR
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« on: January 28, 2008, 04:11:54 pm »

Does anybody have any experince with the Facet pumps? Since the car i'm looking at need to have a new pump, i'm considering using an electrical. Would like to get it looking good, and not to big. Something like these perhaps...?


Bolted to the wall into the cockpit to get a clean, short and neat looking system.

I think the Facet pump is a pressure pump and not a suction pump. And can not find any diagrams for it....  Huh

Is this a problem or not, since the pump will be about 50cm above the bottum of the tank. Hard to tell without any diagrams.....
And must it be mounted verticaly, or could it be mounted horisontally?




Any ideas?
« Last Edit: January 28, 2008, 06:08:34 pm by RazorbackNOR » Logged

2010 Mazda 3 1,6  Diesel Gunmetal Blue
1983 Matra Murena 2.2 Platine
50cc Pocketbike
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Anders Dinsen
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« Reply #1 on: January 28, 2008, 05:10:37 pm »

The facet pumps are widely used. The important thing when choosing a pump is to find one which supplies fuel at the correct pressure and can suck the petrol out of the tank. It must also be able to supply the necessary amount of fuel per minute to run the engine at full load.

Some recommend over-pressure pumps and a pressure regulator to make it compatible with the needle valve in the carburettor, but I would personally prefer a pump with integrated pressure regulator, like the membrane type pump I have fitted on my car. The Murena carb has a fuel return line, this will take care of most over pressure problems.

I have collected my knowledge about the subject here:
http://dinsen.net/murena/electrics/fuelpump

A word of caution when you do the job: Take care. Working with fuel is dangerous. The same applies to the carb. So keep your 220V lamps at good distance, take care not to make any sparks, and if/when you spill small amounts of fuel, let it dry away in open air. If you use a cloth to remove it, throw it in water afterwards so it can't burn. Don't put it in your paper waste basket. I always keep my fire extinguisher very close when I'm working with the fuel system. I may be paranoid, but I want to keep my car, have four kids to support, and hate the smell of burnt hair Shocked

- Anders Cool
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'82 Murena 2.2 prep 142
'01 Grand Espace 24v
'08 Smart Fortwo 0,8 cdi
krede
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« Reply #2 on: January 28, 2008, 10:20:37 pm »

Quote
Working with fuel is dangerous

Yahhh... but it smells soooooo good!! especially 98 octane leaded!! WAY better then Diesel.. Grin

Quote
have four kids to support
And a wife... and a dog... and a cage full of birds... and a guinneypig....
.....
Did I leave something out?  Wink


But seriously... get an electric fuel pump as soon as you can... Its common knowledge that the standard 2.2 fuel pump is prone to leaking... onto the exhaust manifold!!
My car had an enginefire on that account some years back.
« Last Edit: January 28, 2008, 10:24:38 pm by krede » Logged
Oetker
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« Reply #3 on: January 28, 2008, 10:23:31 pm »

I build the same electronics that Anders uses and bought a Empi Fuel pump that works at 0.27 bar.
That about the pressure the mechanical pump gives.
On Ebay €35 shipment included.
Its ready to fit...if I only had time.






« Last Edit: January 28, 2008, 11:02:53 pm by Oetker » Logged

I feel like Jonah, only my fish looks different.
Murena 2.2 Red 1982. Murena 1.6 black on places.
krede
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« Reply #4 on: January 28, 2008, 10:26:31 pm »

Noise is an issue here... make sure you get one that's quiet..
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Anders Dinsen
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« Reply #5 on: January 28, 2008, 10:47:52 pm »

And a wife... and a dog... and a cage full of birds... and a guinneypig....
.....
Did I leave something out?  Wink

... my wife's car, the house, the garden...!

I agree about the noise issue.

Oetker, I like your strip board!
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'82 Murena 2.2 prep 142
'01 Grand Espace 24v
'08 Smart Fortwo 0,8 cdi
Oetker
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« Reply #6 on: January 28, 2008, 10:59:53 pm »

@ Anders.

Yep, I know, it looks like youre's Grin
No fancy machines to make nice printboards, but this always worked for me.
It looks like this now.



I use the testconnector to split the needed wires.
« Last Edit: January 28, 2008, 11:04:35 pm by Oetker » Logged

I feel like Jonah, only my fish looks different.
Murena 2.2 Red 1982. Murena 1.6 black on places.
RazorbackNOR
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Posts: 494



« Reply #7 on: January 29, 2008, 06:50:47 am »

The Facet is noisy?  Shocked  Wouldn't be the best place to bolt it on the wall just behind the driverseat then...? but can you really hear it over the noise of the engine....?

Found out that it lifts 0,6meters, to it would be able to do the job atleast.

The silver top                 delivers 4-5,5 psi and 36 us gallons/h.
The silver top fast road delivers  6-8    psi and 32 us gallons/h
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2010 Mazda 3 1,6  Diesel Gunmetal Blue
1983 Matra Murena 2.2 Platine
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Oetker
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« Reply #8 on: January 29, 2008, 09:00:35 am »

39 gal/m is more then enough for the Murena, and yes its noisy.
Because of the 45 degree upright angle needed to mount the pump,  the place above the tank looks ideal.
Maybe some rubber grommets help to reduce the vibration.
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I feel like Jonah, only my fish looks different.
Murena 2.2 Red 1982. Murena 1.6 black on places.
RazorbackNOR
Sr. Member
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Posts: 494



« Reply #9 on: January 29, 2008, 09:32:45 am »

Quote
Because of the 45 degree upright angle needed to mount the pump,
You mean 90 degrees i persume? Must be upright? Damn, that makes it somewhat harder to fit....

Quote
and yes its noisy.
How much noise are we talking about...?
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2010 Mazda 3 1,6  Diesel Gunmetal Blue
1983 Matra Murena 2.2 Platine
50cc Pocketbike
IPSC shooter
Oetker
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« Reply #10 on: January 29, 2008, 09:43:15 am »

No, 45 degree upright position away from the tank.
The plate behind you're back wil function as a soundboard.
I have to try out myself howmuch noise it wil be, because I wil mount it there to.
I am gonna use plenty of soft rubber to isolate the vibration.
I gues it depends on the pump.
In case of emergency, put the volume of the radio a bit up Cool or put in a Devil exhaust Wink
« Last Edit: January 29, 2008, 09:49:03 am by Oetker » Logged

I feel like Jonah, only my fish looks different.
Murena 2.2 Red 1982. Murena 1.6 black on places.
Oskar
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« Reply #11 on: January 29, 2008, 11:50:10 am »

what about the fuel pump from a peugeot 205 thats fitted inside the fueltank?
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RazorbackNOR
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Posts: 494



« Reply #12 on: January 29, 2008, 12:11:34 pm »

what about the fuel pump from a peugeot 205 thats fitted inside the fueltank?

Will it fit in the Murena tank then....?
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2010 Mazda 3 1,6  Diesel Gunmetal Blue
1983 Matra Murena 2.2 Platine
50cc Pocketbike
IPSC shooter
krede
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« Reply #13 on: January 29, 2008, 01:05:25 pm »

I fitted am EFI pump off an escort coshworth in my fuel tank,as I didn't want a "two pump "set up.
I made a fuel tank lit from a piece of 5mm steel ,welded a piece of steel rod bend in the same shape as the old (in tank) fuel pipe,and fitted the pump in the end of it so it's sucks up fuel in roughly the same height as before.
I did this because I didn't trust the original pipe and lit to be of sufficient thickness/strength to support the weight of the pump without eventually fatiguing     and breaking.
It is still a bit of an experiment, but so far it has been working fine.... next job is to transfer the fuel gauge sender to the new assembly, and then fit a fuel filter that is small enough to go through opening in the fuel tank.. to there will be no visible pumps of filters in the engine bay. 

However using an EFI pump for a carb engine, is a bit "over kill"...
And are you certain that the pug 205 pump is not intended for fuel injection?
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RazorbackNOR
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Posts: 494



« Reply #14 on: January 29, 2008, 01:23:20 pm »

I've maneged to find some pics of a facet in an Murena, but don't know who the owner is....

Does anybody know....?
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2010 Mazda 3 1,6  Diesel Gunmetal Blue
1983 Matra Murena 2.2 Platine
50cc Pocketbike
IPSC shooter
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