Electric fuel pump

[wingnut]

Hi
Has anyone used a SU fuel pump on a spitfire.

And if so best postion to fit it.

If not any suggestion as to the best elec fuel pump to fit.

Cheers.

Brian.

[Deleted User]

dont know abou SU pumps, but there was a thread on one of the chit chat sections the same as this (or on the herald one) started by brucy, generaly Facet solid state ones seem to be the ones to go for, red tops are good, but most EFP are OK, you will also need a fuel preasure regulater as they pump too much fuel for the carbs to handle.

hope this helps abit
Jony

[Deleted User]

If you decide SU, choose a later solid state model, not a 'points' one.
Best position is just near the fuel tank

[junkuser]

Depends on what type of SU.  Some were designed to lift and mount at carburettor level and others were designed to push and mounted at bottom of tank level.   Most later ones were push so mounted in boot.

[heraldcoupe]

Be sure to fit an inertia switch, it's not nice being in a crashed car listening to the fuel pump ticking away.......
Cheers,
Bill.

[Deleted User]

I've heard of these switches but never found one, where do you get them??

been there once not going there again...

[rhodes]

I fitted an SU pump to get round the problem of vapour lock in the mechanical one when idling in traffic on a hot day.  It's mounted in the left rear wing under the boot lid prop.  I do not have a regulator and have no trouble, but I do have a filter before the pump and another one in the engine compartment.  I think most problems with overflowing SU float chambers are due to dirt.  The first filter catches an awful lot of grot from the tank and is essential.

[heraldcoupe]

There used to be plenty of old stock inertia switches doing the rounds of the autojumbles, not seen them recently though. I would expect to find them with any supplier handling electric pumps, but I know things often don't work out that logically! Where do the racers get them?
Cheers,
Bill.

[lordleonusa]

Those small grey plastic inertia switches weigh almost nothing, work well and may be found in the 'left-hand-under-the-glove-box' area of a Jaguar XJ6 in the scrapyard.

L  

[99176]

I used SU type on my 1500 which worked well.
As the car evolved it just failed to keep up with Webers etc.

[the_nutter]

Look on Ebay for fuel pump inertia switches - there's one on there now for a Westfield, kit car, etc" currently at £9.05 with 6 hours to go.  "

I would post the link but don't know how to do it as a hyperlink.

Cheers
David

[ferny]

Copy and paste the link from the address bar. If that doesn't work properly (it will do) then insert the address between an [.url] and a [./url] - removing the .'s.

[thescrapman]

wingnut wrote:

Hi
Has anyone used a SU fuel pump on a spitfire.

So does this give a clue as to the problems sunday????

Old Maestros and Montegos had inertia switches.

I think early Mk4 Fiestas have them as well judging by teh sticker on the visor of mine.

Cheersd

Colin

[the_nutter]

ferny,

Thanks, hope it works.

Ebay link is (nothing to do with me BTW):
http://cgi.ebay.co.uk/Fuel-Pump-Inertia-Switch-Westfield-Kit-Car-etc_W0QQitemZ170135509392QQihZ007QQcategoryZ100921QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

Cheers
David

[gilesdive]

Cut out switch?

They were on all 2500 PI s and also TR5 & TR6, mounted on bulkhead on left hand side.
My bonnet is closed (for a change) so you can't take mine!

[rotoflex]

The electric SU fuel pump is a great social facilitator.

The Triumph folks & MG folks didn't really mix much socially or on the road during the days of production, they were pretty much fundamentally different personality types.

Most of the MG folks I met were when I pulled over on seeing an MG stopped by the side of the road, & went over to bang on the electric SU fuel pump with the handle of the big screwdriver to make them go again.

I heart the mechanical MF/Triumph/AC fuel pump with the funky little handle on the bottom.

[Garth]

Had to fit an SU pump quickly one day when the origional gave up trhe ghost. I removed the origional pump, plated over the hole and included mounts for the SU into the plate. That was 9 months ago and the pump is still in place. It was an easy option as it is out of the way, close to the origional fuel lines, and easy to wire into place. No inertia Sw fitted but I did take the wiring into the cabin to a hidden ON/OFF switch as an extra precaution against theft. (caught the daughter a beauty too, thinking I wouldn't notice if she went to the shops and back quickly)

[rhodes]

I have a hidden fuel pump switch too, but it is only my second line of defence against theft because the car will run for a mile or so on what is in the float chambers, without the pump running.  True you might not get far, or even start the engine, if stone cold.

[Garth]

Should have finished the thread properly by explaining that my daughter (17) and friend got to the shop, and part way home, before The car stopped. She was petrified that somthing realy bad had happened while she wasn't supposed to be using it. I suppose I should get around to telling her the real cause of the failure, but there is still some 'milage' to be had from it yet. The walk to retrieve the car was god for the health and the 'hour of diagnosis and fixing' was well spent with friends over an ale.