16 replies to this topic

[Mini Manannán]

I have a clubby estate running a single HIF44.

 The standard fuel pump is starting to get noisy so I thought I might fit a electrickeral pump.  So I though Facet: http://www.minispare...|Back to search  As I remember these are 'push' pumps and the thing is the estate fuel tank is the lowest point on the car so if I mounted the pump in the usual place in up around the rear subframe it would be higher than the bottom of the tank by about 4".  Is that too much or not enough to worry about?  Or maybe I should go for a semi-original type: http://www.minispare...px|Back to shop  I'm not sure if these are push or pull though?

 

Anyone?

Edited by Mini Manannán, 26 November 2014 - 02:31 AM.

[Spider]

Facets will lift at least 12", some models even more, however the biggest problem I've found with them is many have their pressure set too high for an SU, these only 'like' 1.5 to 2.5 PSI, though you can sometimes run with as high as 3.0 PSI. There are only about 1 or 2 pumps in facet's range with a working pressure that low, most are consierably higher (in fact when I enquired with Facet themselves a year back, although they listed one in the sweet spot, it wasn't one they usually produced as they only sold about 12 - 15 a year of that model).

 

Look it up to be sure;-

 

http://www.facet-pur...part_finder.php

 

When looking for the Facet P/N, it's actually stamped in to one of the mounting feet. The P/N Mini Spares (and many other sellers use) seem to be their own P/N.

[Mini Manannán]

If they'll lift 12 " there's no problem then.  I've been led to understand that 3psi is the standard for an SU but I'm always ready to learn  going by your recommendation I'd need a 40163. I'm struggling to understand why Minispares would be selling an over-powerful pump though?

[Spider]

Apologies, I gave you a bit of a bum steer there with the pressures. I should have said 1.5 to 3.0 PSI and can sometimes run up to 3.5 PSI, but if you start smelling fuel, you'll know where to look!

 

Yes, that is the Facet Pump that is ideal for an SU, but that's also the one that no one seems to have! 

[Spider]

The Mini Spares pump is a Facet 40105, it's pressure range is 3.0 (Min) - 4.5 (Max) PSI.

 

<edit: Too high for an SU, but fine for a Weber >

 

Just my own observations that nearly every Mini I've seen with these pumps are OK for a while, but before long they do overcome the needle and seat.

 

Factory Data;-

 

Edited by Moke Spider, 26 November 2014 - 07:54 AM.

[nicklouse]

fit a pressure regulator on the bulkhead.

[geoff-d]

This Is The 1 I use Facet from a company called H.T.S . Tel 01432373350 . www.htsspares.com There Part Number Is HEL305 . I use that pump on 7 X 998 minis some race & some road cars .1 is on in a van mounted on the rear heal board. hope that helps

Edited by geoff-d, 26 November 2014 - 09:04 AM.

[Mini Manannán]

fit a pressure regulator on the bulkhead.

Sorry Nick, but that is just another layer of complication on my eyes, of rather just get the correct pump

[nicklouse]

but it simplifies so many things and removed any possible fuel supply problems.

[geoff-d]

Also at racing there have been people that buy the cheap copy pumps off eBay & they are rubbish don't last long. 

[ImagoX]

If anyone is in the US and needs an electric pump, many of the guys in my classic club have used this pump from AutoZone with good results:

 

http://www.autozone....ump/732036_0_0/

 

It's a 2-3.5 psi pump, and it fits well tucked up inside the rear sub frame (takes a bit of finagling to get the fuel lines nested without crimping but it can be done). Others drill a pair of holes in the bottom of the boot and hang it from the bottom of the car - either way seems fine. If you're planning on driving in a lot of rain/snow, you can even mount it INSIDE the boot I'm told for maximum protection, but I'd be nervous about having the pump in an enclosed space, personally... 

 

I used this exact same pump on my rebuild - my SECOND mechanical pump  started leaking so I gave up on them - and so far it's great with a pair of SUs. At least three other people I know near me with well-running classics have all used the same pump on a variety of different  classics, from race cars to daily drivers, and they seem fine. Cheap and easy to get, too - I think just about every AutoZone keeps at least one in-stock at all times - just to be sure to check the flow velocity; there's another one they sell for the exactly same price that has substantially higher pressure, but looks almost identical. 

Edited by ImagoX, 26 November 2014 - 03:31 PM.

[KernowCooper]

SUs pressure is 2.5psi but as said there are people out there using slightly higher pressure without issues, just depends as already said how good your needle valve is.

[Mini Manannán]

So the Minispares pump isn't the ideal pressure. I'm going to search out the Facet 40163.

[ImagoX]

Since the electric pumps all seem to be constant-velocity, what happens to the over-pressured gas when the car is idling and does not consume as much fuel, or even when the ignition switch is switched on (so the pump is running), but the engine is not consuming any of the gas streaming into the carbs?

[jpw1275]

As said just fit a pressure regulator ( filter king ) and set it too the correct pressure for your carb..... I'm running a facet fuel pump and it was over fuelling my hif44, I think if you want the correct one for the car then buy an original one and replace your worn one

Cheers james