STRONG PETROL SMELL

[Dobby]

Unfortunately over the past few months I haven't had much opportunity to drive my series three wagon, but recently I have taken it for a couple of spins and I have noticed a really strong petrol smell, particularly after I have stopped. There doesn't appear to be any obvious signs of fuel leaking so I'm wondering if it's just the engine running too rich? or something else? I have checked that the choke isn't on.


Unfortunately it's not like the old days where you could just look at the exhaust pipe and see if it's running lean or rich i.e. colour of the inside of the tail pipe (grey or black). Has anyone got any suggestions as to what it may be please. I'm running a Holden 186 engine with standard exhaust manifold and standard single barrel Stromberg carby.


Many thanks,
Vince

[pk.hoarder]

I had to replace the flexible fuel coupling from the filler neck to the tank, but in that case the petrol smell was worst after or putting fuel in.

Sent from my B1-730 using AULRO mobile app

[JDNSW]

Have a look at the whole fuel system from the tank forward. The station wagon filler (and vent) is 'sort of' outside the body, but leaks round the filler may still get into body - the body is not very airtight. Similarly, check for leakage round the fuel gauge sender on top of the tank, and for signs of leakage of the tank itself. It is unlikely that there are leaks between the tank and the fuel pump, as this line is sucking, so any significant leak would mean air getting in and fuel starvation.

The most likely places for leaks are at or after the fuel pump. As this whole area is hot, you won't see actual fuel unless it is very bad, but you should see staining.

It could be rich mixture, and the most likely reason with the Stromberg is either the choke is not opening fully or the needle valve is not sealing properly.

John

[Homestar]

Check to see if the carby has come loose on the inlet manifold - I've had that happen more than once on a Holden red motor after it has sat for a while - the gasket between them shrinks a bit and you end up with fuel wicking out between them while driving.

Just a thought.

[DiscoMick]

Fuel filter leaking?

Sent from my SM-G900I using AULRO mobile app