Noisy electric fuel pump

[NickWilmshurst]

Hello,
I've just converted my car to an electric fuel pump - a "Facet low pressure 40104".
I've mounted it on the inside of the wheel arch in the recess to the right of the petrol tank mounted on rubber (hoping this would dampen the noise).
However, it makes a right old racket! Not sure I can live with this. Has anyone else had this? Have I done something wrong? Any ideas?
Thanks
Nick

'67 S3

[alan.barker]

Throw it in the trash.
Fit a HUCO low pressure no noise 100%.
No pressure regulator perfect.
Alan

[alanr]

All Facet pumps are very noisy.
Stick with the original mechanical pump would be my advice!

Alan.

[h20hamelan]

Fuel pump solenoid is more noisy and not as good as rotary valve
But, solenoid is cheaper and you can carry a spare.

Try a filter before pump, and one after pump. You will be surprised.

Make sure it is isolated well. The vibration against the body is a problem

[alan.barker]

All Facet pumps are very noisy.
Stick with the original mechanical pump would be my advice!

Alan.

Spot on the best is mechanical as original for sure. On my Sprint mechanical 100%
Alan

[JonB]

I had a Huco on my Plus 2. Important mod that, as you get to start the car after a week's layup without labouring the starter motor to fill the Dellorto / Weber float bowls (which would be devoid of fuel after evaporation through the vents).

Now I have a Stromberg S4 and I may be OK with the mechanical pump. I don't think the Strombergs are highly vented floats, if at all. Whatever, I will try it!

But, to the OP's point, I'm with Alan (Barker) on this one - definitely buy a Huco. Quiet, efficient, effective. And low pressure, sucks fuel so you can mount it in the engine bay and not worry about pressure along the main length of fuel line. Just make sure you get the right one for your application (low pressure, for carburettors).

[smo17003]

Huco 133000 if you're mounting it near the fuel tank, and Huco 133010 for the engine bay.

[alan.barker]

Thanks jonb,
Good luck with your super se go for it
Alan

[h20hamelan]

The other concern these days is ethanol.
Wonder how many mechanical pump diaphragms are engineered for ethanol.
I was going to keep the mechanical, but the supplier confirmed was not made for ethanol. If it really matters, probably not, but…

[NickWilmshurst]

Thanks for all the replies. The purpose was to get rid of the need to crank the engine over for ages if it had been standing a while.
I think my best bet is to see if I can get my money back for the Facet and invest in a Huco (Hitachi).
Thanks again.
Nick

[ericbushby]

Hi Nik,
An electric pump will solve your problem but it also adds complications. It is advisable to also fit an impact cut out so that the fuel supply is cut off in an accident. Plenty of info about that on here.
Another way is to fit just a priming pump which is used for just a few seconds before starting.
I used a cheapo Facet `look alike`, about £15.00 on ebay.
I chose this one because it is cheap and reputed to be noisy, so I could hear when the carburettors are full.
It has been in use for 5 years now with no snags.
I ran a twin cable from a spring return double pole switch mounted under the dashboard so that there is only an electrical connection for about 5 seconds to prime the carbs and the engine is not running then.
This is a cheap pump but should it fail the engine mechanical pump will continue to draw fuel through it as it does normally.
Just another way of doing it.
Eric in Burnley
1967 S3SE DHC

[RobertMaulden]

"Make sure it is isolated well. The vibration against the body is a problem"

That is essential, any rubber mounts will do the job

[alan.barker]

If you buy a Huco Pump you can also buy a fitting kit with rubber mountings.
Alan

[JonB]

If you buy a Huco Pump you can also buy a fitting kit with rubber mountings.
Alan

..but you don't really need to. On my +2 I could hear it ticking, just; then not at all once the engine started. That's reassuring - you can hear when the float bowls are full which of course is when you turn the key to start it. Fired up first time always after fitting the pump (oh, and cleaning the main earth point in the boot, but that's a different story).