Electric Fuel pump issues. Help needed on page 2 :D

[pettaw]

OK, so you've earthed the fuel pump directly to the battery tray, sounds good. Where have you connected the +12V to? Can you connect it temporarily directly to the positive terminal of the battery so that it runs continuously and then check if its still losing pressure?

Stupid question number 2, are the fuel lines hooked up correctly with the feed and output in the right places, and what are you using to regulate the fuel pressure?

Right, reading your first post carefully, you purchased this pump in order to try and sort your problem of cutting out after driving? Fuel pumps don't normally give this type of problem, they either work or don't. I bet the carb is icing up. Have you got all your hot air hoses properly hooked up?

[cheshire190e]

I tried hooking the fuel pump up directly to the battery, this worked but another problem has aroused.

The car is fine when idling and i can hold the revs at any speed, but when driving as soon as i get into 3rd gear at about 3000rpm the car just looses all power.

I have had to get the train back to uni so without a car till i can try and sort it at christmas.

[cheshire190e]

Hi everyone, I hav'nt managed to get my car sorted in time so im back at uni without it

I think the problem is fuelling. if anyone has installed an electric fuel pump could you please show me pics and give info on how its installed.

I have a 2.5-3.5psi facet solid state pump, its hooked up to the ignition power and the line goes.

feed pipe - inline filter - pump - carb


Could anyone else let me know how theres is routed, cheers

It seems like the car is just running out of fuel. maybe the pump doesnt pump enough fuel, im not sure.


Cheers

Matt

[srtames]

Had that kangaroo problem at over 50mph on A303 on very wet night.month ago I called rescue service as did not want to get soaked.The breakdown man just sprayed the dist cap and lead s with wd40 (and said the high volts were tracking with the high humidity. Wd40 worked a treat and kangaroo has not reappeared. Wd40 can now inboot .

regards, Steve

[SteveP]

I'd get some leads, dizzy cap and rotor arm, you can keep the WD40 at home that way

[kaos]

I'd get some leads, dizzy cap and rotor arm, you can keep the WD40 at home that way

what did i say a good service!

[cheshire190e]

It had a full service less than 2 months ago. dizzy cap, rotor arm, leads, plugs, oil, filters.

The problem has only started since i had to add the electric fuel pump to work with the cam

Im not sure if it pumping enough fuel into the carb, would you happen to know the ltr/minute amount from the mechanical pump on the 1.7?

and also, do I need a swirlpot if my pump is 2.5 - 3.5 psi

Cheers

Matt

[classicswede]

Going back to the original problem of juddering and loosing power at hiogher speeds. Di dyou fit the leads etc to try and resolve the problem or did that problem occour after the leads etc had been fitted?

[cheshire190e]

I just did the leads and everything when i did the service.

It does seem like lack of petrol getting to the carb because it works ok when you first drive but then gets quickly worse after a few mins.

Did you manage to find out how much fuel should be pumped when the car is at high revs


Cheers


Matt

[jtbo]

I got my fuel pump from here:
http://www.biltema.com/

It is this one (long url ):
http://www.biltema.fi/osteri/osteri.cgi ... 8364992198

It says it pumps 120 litres per hour and gives out 0,1bar pressure.

I have had not even single problem with it, seem to do it's job just fine, well after I did replace all fuel hoses, also those near the fuel tank.

[cheshire190e]

jtbo

thanks for the info of your fuel pump.

how is yours routed too? do you use the swirl pot or have the pump directly connected to the carb with a single pipe?

Thanks

Matt

[jtbo]

jtbo

thanks for the info of your fuel pump.

how is yours routed too? do you use the swirl pot or have the pump directly connected to the carb with a single pipe?

Thanks

Matt

It is put this way:

Fuel line from tank -> inline fuel filter (large type) -> fuel pump -> vaporizer unit (cylinder shaped thing under manifold with 3 hose connections, I put hose where original pump hose were) -> carb.

I'm not too sure if 1.7 had that vapourizer unit at all, but perhaps it is not even needed.

[cheshire190e]

yeah mine has one of those, to try and get it running right i just put it directly to the carb.

ill try putting it through that then, also i heard with solid state pumps they should be fitted close to the tank not in the engine bay. would this be true?

Cheers


Matt

[jtbo]

Well, there are typically two types of electric fuel pumps for carb cars, one is version that pushes fuel out, this type needs to be installed near to tank and another one is that "sucks" fuel and this type can be fitted to engine bay.

[cheshire190e]

ah ok, thanks alot.

Ill try to get it sorted when im next home.

Matt