Engine trouble

[spridget]

Hi All,
Well since a while my car, after a short drive, doesn?t give anymore power . It looks like there is something in the fuel line, when I throttle, the revs doesn't go faster and stays around 2000 rpm.
After a short stay every thing is OK
I have changed the coil, check the air vent on the tank but It still the same after 10 or 15 minutes. I don?t think for an electrical trouble (engine is still running)

I?m thinking about something in the fuel line because the only thing I did was to fill the tank fully that I never did before ... So I?m planning to fit a fuel filter, I haven?t see any one on the car.
Where can I put it ? the pump is hidden by the carbs and there is not a lot of room around

One more time I need your precious advices !
Thanks
Franck

[Bruce Crowthorne]

I put my filter in the boot. Take the fuel pipe off the metal pipe on the tank. Connect one side of the filter to the existing pipe and add another piece of pipe from the other side of the filter to the tank.
I just used a small in line plastic filter - it is hidden under the boot carpet and is out of sight.
Hope this helps

[UAB807F]

Before changing to an electric pump, I also had a small filter in the boot situated directly after the tank take-off. It was a fairly cheap disposable plastic item, small enough to slide down alongside the tank and be hidden by the carpets.

If you suspect dirt has been dragged through the fuel lines it might be worth checking the petrol pump itself, and the small filters in the carburetors. If the new filter doesn't clear up the problem, one easy way of checking if it's fuel starvation is to use a Gunson's colortune plug and watch if the mixture weakens when you open the throttle.

Brian

[elansprint71]

There is a gauze filter in the glass bowl at the top of the mechanical fuel pump and a a gauze filter in each of the carbs (Weber and Dellorto).

[Galwaylotus]

I too have a plastic fuel filter immediately after the tank outlet. I also have an electric fuel pump so the filter protects it as well as the carburetors. When I had fuel starvation issues shortly after buying my car, I was able to flush all the lines by using the fuel pump. As it happened, all the debris had been caught in the filter anyway so the flush was simply a precaution.

[spridget]

Thanks all for the replies
Well, I'll first inspect the gauze filters on the Webers and pump. I'll probably fit a small filter near the tank as suggested
I'll let you know probably when I'll be back from holidays far away from the Lotus
During this time I'm planning to study Weber manuals

Thanks again
Franck