Fuel Pump power consumption

Anyone any ideas what a 101 Fuel pump uses electrically ? I have a 101 club member, with a 24 V system feeding a 12V pump via a resistor - which is getting burning hot. He reckons yon pump is pulling 35 Watts ! Thanks

Steve

Reply to
Steve Taylor
Loading thread data ...

Assuming it's an SU that sounds about right from memory.

/5 minute break

.....and is borne out by a quick test of the SU in my neighbour's MGB.

Reply to
EMB

WOW. I never expected that from the kind of flowrates and heads involved.

Steve

Reply to
Steve Taylor

I don't think energy efficiency was a design criterion! ('bout what I would have expected) JD

JD

Reply to
JD

If you go here:

formatting link
Click on the pump image as appropriate and you'll see the spec. I would guess about 1.5Amps or 18Watts (approx)

I've just been through this process buying a fuel pump for a Jensen. It was a cube type pump that flowed a maximum of 34 gallons/hour and up to 10psi maximum pressure. Currant consumption was 1.6 amps IIRC.

If it is 'pulling' 35 Watts, through a dropper resistor, then this too will be 'pulling' 35 Watts. So, if it's not a big ceramic wire wound thing - like they use to slow up heater fans then it will be burning hot!

Julian.

Reply to
Julian

They claim about 1 amp somewhere else in the blurb. This is for the current day solid state interrupter pump. The older ones as on the RRC, and I presume the 101, were much less efficient and 3.5 amp. or thereabouts at full chat does not surprise me.

Reply to
Dougal

MotorsForum website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.