Fuel Pump Location

[Keith Wild]

I was up early this morning so have been reading the SVA manual……yes I know sad b******d, anyway I'm a tad worried about the location of my fuel pump the SVA says,

"not subject to vibration"
"not near any sources of heat liable to cause a fire in the event of a leak"
"not liable to corrosion".

So!.... Rover V8 and I've mounted my pump on it's rubber mounts on a nice shiny stainless bracket fitted to the lower left hand side of the block, more or less on the oposite side to where the original mechanical pump was fitted and that's my worry. If the engine block was good enough place to put the mechanical pump does anyone see any problem with fitting the electric one in more or less the same place??

And oh yes! it's wired through the oil pressure switch to dissconect the supply if I hit a brick wall

Keith Wild

[Shelby]

The only thing that springs to my mind is the posability of fuel frothing, due to engine vibration. I also think im right in thinking the fuel pump works better mounted close to the outlet on the fuel tank.

[Dan]

My setup has the fuel pump situated above the rear wheel axel (top side) about half a meter of pipe connects to the tank with a good quality hi flow fuel filter between. Another length of flexible tube is used to connect the pump to the copper/nickle run to the engine bay where I used braided hose for the remainder of the trip to the carb (With a clear glass inline filter). Having the setup like this takes away the heat element and the vibrations are kept to a minimum - also because the length between the pump and the tank is fairly short the pump has to suck air for less time.

Dan 'Were all these nuts used before' Man
www.cobra.kitcar.btinternet.co.uk

[wilf]

Keith - it is, ummm, "unusual" to fit an electric pump in the engine bay, let alone onto the side of the block! In general, mechanical pumps suck better than electric ones. Electric pumps should ideally be mounted near the tank, as they "push" fuel up the line. And the advice to fit a filter before the pump is sound.

HTH

Wilf

[Keith Wild]

Ooh well gosh why did I fit it there?, ease of wiring, fuel pipe from tank to engine not under pressure, accessibility for servicing internal filter and also it made the engine a self contained "lump" cos before installation in the chassis it was run up on a frame with a gallon can as a petrol tank.....gallons don't last long do they!

I don't think there will be a problem with fuel frothing, my engines to smooth for that.

Shall have to have a think about this one unless there is someone out there who has gone through the test with a pump in the engine bay.

Thank's for the input

Keith Wild

[VinceGledhill]

Ken at AK says that you can fit the fuel pump to the chassis level with the gearbox. (the bit where the cogs are not the bellhousing)

You could then make a cut out in the body for access from the passenger side footwell.

Regards
Vince@gledhill.info

[gartrac]

Keith

Sorry to agree with everyone else but the engine bay is not the place for an electric fuel pump, particularly attached to the block as already mentioned these pumps much prefer blowing rather than sucking (reminds me of a girl I once knew) also have you considered how hot the pump will get, may cause problems with fuel vaporisation

My advice is to relocate it somewhere cool preferably near the fuel tank

On a lighter note quite like the idea of wiring it through the oil pressure switch, top marks for that one providing it will stand the current drawn by the pump?

Just my 02p worth

Pete

[wilf]

Pete - you still got the phone number for that girl??

Wilf }> }> }>

[gartrac]

Fraid not Wilf

Do you think i'd be browsing this forum at this time of night if I had?

Pete

[kauri]

Hi Keith

I originally put my electric pump in the prop shaft tunnel of the AK, mounted about 12" from the rear cross member and just behind the rear of the Getrag gearbox on the nearside. I put it on two welded studs, just clear of the tunnel frame together with a shut off cock on the rear cross member. It was clear of the frame at the bottom so no worries about knocking it off.

It cleared the prop shaft with 1.1/2" to spare. Since then I have removed it and gone for a Chevy mechanical one which is an incredibly tight fit close to the offside engine mount. I was a litle concerned that the noise might be too much being so close to the driver.

Cheers John