Technical Uno petrol problems

[cotroler]

Hey guys,

I have noticed that lately i'm getting a huge smell of petrol inside the car.. before I had the problem when fueling the tank over half the tank, I would get a smell of petrol, so I managed to solve it by never filling more than hald the tank of petrol


Now lately the problem happens even on low ammount of petrol... i get a smell of petrol... im afraid something is not right... there doesnt seem to be any leakages underneath the tank.. also I had the fuel piping change recently and a new fuel filter... and everything is held tight..

What could be the problem?? I'm doing between 30 - 40 MPG (that is in city driving in Malta) so I don't think it very bad no??



Btw here's a pic of my luvely uno - in a FIAT meeting in malta

 

[alexGS]

I think you should start by lifting the back seat and the boot floor mat, then remove the rounded-rectangular plastic cover (a haphazard snap-fit on the Mk1, bolted-on for the Mk2) and look for signs of dampness around the fuel gauge sender/fuel pickup on the top of the fuel tank.

If there is signs of dampness, remove the sender/fuel pickup fitting and re-seal it, either with a new seal or addition of petrol-proof sealant (silicone sealant is NOT a good idea). For my Uno Turbo, I think I used Loctite Master Gasket 518, an anaerobic, translucent-red sealant. I was also getting a petrol smell, mostly when the tank was full, and the cause was a leak where I've described - under the rear seat. Since it is 'inside' the car, it doesn't take much petrol to create a strong - and dangerous - smell. Dangerous mainly because of the intoxicating effect of sniffing the fumes, I suggest

On the other hand, if there is a leak under the car, that will show clearly against the dust and dirt that covers the tank. However, most Uno models (except the Uno Turbo I think) have the fuel pipes running inside the cabin. They are hard plastic and are not prone to chafing or damage in my experience. At the ends of the fuel pipes, there are short rubber sections (to the tank pickup and to the fuel pump/fuel pressure regulator) and these sections should be inspected carefully for splits/cracks as a result of age-related hardening. Just my suggestions.

-Alex

 

[Gav F]

Ooo
Malta, Im 1/4 Maltese

 

[cotroler]

Ooo
Malta, Im 1/4 Maltese

woow really

 

[Chas Uno]

Ooo
Malta, Im 1/4 Malteser

:devil:

 

[unoturbo1]

it might be over fueling turn down the mixture