Fuel Pump Mounting

[skov]

Hi all,

I've got one of those cheapo fuel pumps off the bay, and looking for some inspiration on what to do with it.

How and where have folks mounted similar pumps?

Also are they fussy about orientation, or where they go in relation to the tank?

https://lh3.googleusercontent.com/-fDe5v9cBaq4/T-WhwqjPZDI/AAAAAAAAIZs/MXjRPmXf__I/s912/S5033272.JPG

Ta,

[alga]

These pumps are not fussy about orientation, as far as I know.

You need to isolate the vibration, otherwise the whole chassis will buzz when you turn on the ignition. When the engine is running, the engine noise will hide the fuel pump buzz, though.

One way to do it is to use 2 or 4 exhaust bobbin mounts to mount a metal strip, and jubilee clip the pump to it, Like this:

http://www.robcollingridge.com/kitcar/design/fuel/Fuel_Pump_Mount.jpg

I made an Ω-shaped clamp out of a 2" wide strip of aluminium, and used felt to mount the pump in it. No picture of the pump mount, but here's a general idea where it goes in the car:

http://locost.lt/pic/567

[skov]

Excellent - thanks Alga!

[adrianreeve]

I discovered that the bracket used to mount a good old fashioned ignition coil is a perfect fit for these pumps, just mounted on a couple of bobbins.

Cheers

Adrian

[Wynand]

Similar pump:) Here is how I fitted mine. Petrol pipes not connected yet.

http://img.photobucket.com/albums/v305/wynand/Lotus7Fuelpump.jpg

[baz-r]

i have the same pump its a bosch copy you can buy expensive mounts or i have seen big p clips, exhaust clamps and all sorts of other things used to mount them up.
as said you want something to prevent the vibration/noise been amplified by what your mounting it to.
if you have it plumbed up direct to tank then you need it mounted at the same level as the lowest point as thay dont self prime and running dry will damage the pump as its a roller style pump and needs the fuel to lube it.

[robo]

As above keep it as low as poss and fit a pre filter as they dont tolerate crap running through them.

Bob

[flyerncle]

Large end is usually inlet and small is pressure out,same with electric terminals or you may find it goes backwards.

[skov]

Thanks all, I think I know what I'm doing now :)

[skov]

My fuel line turned up today, so I spent the evening working on this.

Hope you don't mind Alga, but I plagiarised your idea almost entirely :D

https://lh6.googleusercontent.com/-8M_DHN0ubvY/T-uBJgr0KEI/AAAAAAAAIZ8/NE9ioDir-Vs/s640/S5033279.JPG

https://lh4.googleusercontent.com/-yNPdSYsk9QY/T-uBFZgT71I/AAAAAAAAIZ0/3CPLdo0RHTs/s640/S5033280.JPG

Still need to bolt down the pump mounts, and secure the pipes, but it's just about there.
And I'll obviously swap the cable ties for something a little more robust!

[loony]

Are there any disadvantages for mounting fuel pump in engine bay ?

[Wynand]

My pump at the rear is a low pressure unit for the simple reason I have joints - rubber to copper pipe - on the fuel line to engine bay and these joints are in the prop-shaft tunnel. Reason is to have little pressure in pipe to prevent leaks or failure at these joints (double clamped) that may result in me being BBQ..

The low pressure pump deliver to an engine bay fitted swirl tank and from there the high pressure pump, fitted close to swirl tank, with fancy braided hoses and shiny fittings take over to deliver to injectors manifold. The return pipe from the swirl tank to the fuel tank keep pressure out of the system from tank to swirl pot minimizing leak risks.

[loony]

I'll have one low pressure pump for carbed ZX9R engine... so I plan to use as much as I can of OEM engine/bike loom.
I know it's only one or two more wires, but less complicated is better :)