Electric Fuel Pump

D

daves75

New Member
I am having problems with a fuel pump I have recently fitted to my 3500s.
The fuel pump I fitted is rated for up to 6 psi which I have fitted in the engine bay.
The pump does not seem to have enough power to fuel the carbs, has anyone had similar problems ?
should the pump be fitted closer to the fuel tank ? if so where is the best place to fit it and what would be the best fuel pump to purchase ?
Any information anyone could give me would be greatly appreciated.

Dave
 
Last edited:
6psi is double to triple what SU carbs need. You need a lower rated pump or a pressure regulator. What's probably happening is the float chambers aren't functioning properly because the feed pressure is too high.

The engine bay model that I have and others have had good results with is the Huco. Be sure to get some soft "cotton reels" to mount it to control vibration Mini gear linkage ones work well.
 
Hi Dave
I have a electric pump fitted to my 35005 u/k car.
Its a little solid state facet mounted on rear boot wall above diff.
It is plummed into main fuel outlet from tank {using some spare old fuel lines minus plastic pipe)
I still use original engine fuel pump so electric is manualy switched on when vapour lock happens. It works perfectly and vapour lock is a thing of the past.
Just turn pump off again when your moving .
Runs on engine pump 99% of the time.
Only one thing to remember that it only works on main line not reserve.
Some members have pumps under bonnet but need to be pullers not pushers.
Clive.
 
I think this one is what I have: Huco low pressure 12v fuel pump 133010 | Eurocarb

It's at the front, LH side on the inner wing facing the original mechanical pump location. You would also be well advised to fit an inertia switch for safety with any electric pump. The Range Rover type is ideal. These things can shift a good volume of fuel when the pipe is disconnected, not what you want in an accident.
 
Thats a great looking pump/looks a bit like the old SU types but 100% more reliable:)
The only reason for my set up was that in the late 80s/90s when i used to do Benson/hedges and autoglim shows i wanted a factory underbonnet look.
I resisted for a long while before i fitted extra pump for the fact its not original but i think a car being 100% reliable was more important.
Clive.
 
Yup - huco as a puller or facet type as a pusher... I've got a huco to fit to mine as i can keep the reserve tap working that way. I was looking for examples of an inertia switch but coming up blank, probably because i'm not sure what i'm looking for.

You can get regulators that knock the fuel pressure down if that helps?
 
Loads of 'em for a tenner or so.... The Peugeot type looks the same. fuel pump inertia switch | eBay

They are great fun to play with. See how hard you can shake them before they trip...

I would go with the ones including the connector. Much neater and more secure than using spades.
 
daves75 said:
I am having problems with a fuel pump I have recently fitted to my 3500s.
The fuel pump I fitted is rated for up to 6 psi which I have fitted in the engine bay.
The pump does not seem to have enough power to fuel the carbs, has anyone had similar problems ?
should the pump be fitted closer to the fuel tank ? if so where is the best place to fit it and what would be the best fuel pump to purchase ?
Any information anyone could give me would be greatly appreciated.

Dave
Click to expand...

Thanks for all the replies, I have just purchased a Huco Fuel Pump so hopefully this will solve the problem.
 
I have been looking at buying a Huco fuel pump but it does state not to be used in the engine bay is this due to the safety factor ie in the event of a front ender if no inertia switch fitted or is it because the pump is a pusher not a puller? I have just found the same type of pump advertised saying to be fitted in the engine bay as it is a suction pump or i have answered my own question?now i am confused???
 
Hi Chas,
Lots of threads on here for electric pumps,you def need some sort of inertia switch.
Can get peugeot/citroen type which i have used,they are on e bay.
Cheers
Clive.
 
I don't think it makes any difference where the pump is located. If it doesn't stop with the engine, it should have an inertia switch.
 
You must log in or register to reply here.
Back
Top