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Fuel pump options

Csarneson

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My BN4 sat in a field for 40 years and is slowly coming along. The engine will hopefully run again later this summer but I need a Negative Ground fuel pump. Originality is not necessary and cost probably isn’t a decider either. I’m doing lots of modern upgrades so solid state doesn’t bother me. What I want most is reliability. A pump that bolts into the original location would be helpful too. I will most likely add a second small flow through pump in series like Lin did as well.

Fuel pump options:
Hardi solid state- $129
https://www.bpnorthwest.com/austin-...ual-polarity-bn1-bn4-mg-tf-mga-mgb-to-64.html

SU solid state - $157
https://www.ahspares.co.uk/austin-h...ts/fuel-boot/petrol-pumpelectronic-earth.aspx

SU points - $134
https://www.ahspares.co.uk/austin-h.../petrol-pump-dual-polarity.aspx?&currency=usd

Rebuild my original? Is that even an option? It sat in a field for 40 years so i’m skeptical. If so can I do it myself or should it be sent off to someone?

What option would you choose?
 
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SU pumps are easy to rebuild; disassemble yours and see how the internals look. The shop manual has instructions on setting the points. Moss has kits, so does this outfit (NFI):

https://www.sufuelpump.com

I've fought the battle with SU fuel pumps for over 3 decades. I was happy with Dave DuBois' rebuilds but he's gone and one of his failed on me recently. The replacement points sets I bought years ago were of inferior quality--Dave D. agreed--but Moss and others may be sourcing from SU Burlen now. Given you're doing a resto you have plenty to do, if I were you I'd buy the SU solid state and install it, and if I want to fiddle with SU fuel pumps I would do it when the rest of the resto is done and you can enjoy your car (you'll want to carry spare if you do a lot of out-of-town driving, backup pump or not).
 

Harold

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I've installed "Airtex E8016s" on 5 British cars over the past 10 years--also A "MR Gasket" fuel pressure regulater--negative ground--easy installation--
 

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Warren

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I've installed "Airtex E8016s" on 5 British cars over the past 10 years--also A "MR Gasket" fuel pressure regulater--negative ground--easy installation--


Have also used this,same as above, aftermarket fuel pump\Spectra E8016S\SP8016U(Autozone Lifetime) since 2005. No regulator. First one went bad. Autozone replaced and has been trouble free many years. I do carry a spare. Easily switched if necessary. Ticks away like SU.
WD 67 BJ8
 
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As you've discovered your options are many including real SU's (both points-type and solid-state, single and double-headed), SU clones such as the Hardi pump, and many aftermarket units such as those made by FACET and others.

For my Healey I prefer a solid-state SU just because it's correct and it will also have that nice, intermittent clicking sound. Since I am a fan of redundancy I have a double-headed version installed with an on-off-on switch mounted inconspicuously behind my seat.

If you're not a slave to originality your choices are many. Lots of people like the cube-types sold under the FACET and other names but I have had some fail on me, plus I don't like their constant clicking noise. On my Weber-carb'd race cars I use Carter 2040's and have never been let down by one and they put out plenty of fuel at 2-4 psi.

Good luck on your choice.
 

Harold

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I should have mentioned--the pump body is isolated, so that it can be either negative or positive ground---"airtex" pump in my previous posting
 
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Michael - Maybe the Facet pumps are getting a bum rap. IIRC you mentioned some kind of mounting issue where they both didn't work.

I had forgotten about that incident where a number of years ago I tried mounting two FACET pumps in parallel without any check valves and one of the pumps seemed to allow part of the other's output to flow back through it, resulting in partial fuel starvation when running on that pump. Rather than going with what seemed like an overly complicated installation I went to having one FACET in series with an SU with a selector switch, which worked just fine, the FACET able to push through the SU and visa versa. Perhaps operator error was involved.

As said in my earlier post I have since gone to a double-headed SU which I simply find philosophically preferable....
 

steveg

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....which I simply find philosophically preferable....

It comes down to this - ultimately, the cars are performance art. :smile:

I mounted mine in series with an on1-off-on2 switch - works as advertised.

screenshot.1806.jpg


With both mounted on rubber isolation mounts, the ticking is only audible with the engine off. Have lately moved the fuse to the bottom slot on the Charlie Hart fuse box.
 
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