Poor Idle After Hard Drive, With Strong Petrol Smell?

[mattgtd]

Just had the chim out for a good blast for an hour or so and it was running absolutely spot on. Came home, reversed on drive and I noticed that it felt a little lumpy when reversing, then was idling a bit lumpy, also noticed a smell of fuel but not massive. Turned it off and went and did other things. Came back to it about half an hour later to put it in the garage and when I started it it was idling really up and down and lumpy, but more worrying the smell of fuel was a lot stronger.

I left it running and lifted the bonnet to check there wasn't fuel spraying from a hose etc, but nothing, also nothing spraying underneath?
I have put it into the garage and left it for now.

Any ideas?

[mattgtd]

I just noticed whilst sticking my head under the back of it that the exhausts really smell of fuel - not with it running. It's actually the only place I can smell it really?

[mattgtd]

Pulled the car out the garage just now and fired it up from cold, it is idling fairly ok but pushing loads of smoke out of exhaust when revved and also stinks of fuel. Opened bonnet and noticed that it must be pushing so much unburnt fuel down exhaust that is is physically dripping fuel from maniold where I have the gasket gone.
Geting worried now as obviously where I have fuel actually dripping onto exhaust I clearly can't drive it and have it stranded here now until I can resolve it.

[mattgtd]

Just started it to put it back into garage and there is a trail of fuel on the floor, from underneath the NS, directly underneath the exhaust manifold area - which seems strange as it's not where the fuel lines are is it?
Somebody please help before I start writing the advert and surfing the web for 911's haha!

[mattgtd]

Adrian@ said:

Would an injector open and running 100% do this...opening a discussion here rather than anything else.
Adrian@

Kind of makes sense I guess, because as I mentioned it's not near the fuel lines I don't think.

[mattgtd]

Richard 858 said:

Could it be a leak from that side of the fuel rail/fuel regulator/return line that might find a route down via the exhaust manifold ? Might be worth checking the fuel regulator seal (same as the injector seals if I remember correctly. I have a spare seal if that's the problem, or readily available from the usual on line suppliers.

Could be Richard, I have just read a bit about the fpr opening a diaphragm to allow the unwanted fuel back to the tank, so it was saying that if the diaphragm splits then it can't do this and you end up with a large excess amount which would explain it also. Where is the fpr located?