David Jenkins
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| posted on 1/8/05 at 01:25 PM |
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Petrol pong
I'm getting a very strong smell of petrol when the engine's stopped after I've been out for a run in my car. Sniffing around, it
seems to be coming from the top of carb, through the air filter (I've checked for leaks elsewhere).
It's a 32/36 DGAV on a 1660cc x-flow, using the engine's mechanical fuel pump (so hopefully not over-pressure). My first thought is that
it's either a dirty float valve, or it's gone out of adjustment and the level's too high.
Can anyone say whether my guesses are likely candidates, and is there anything else I can look at when I've got the lid off the carb?
cheers,
David
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omega 24 v6
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| posted on 1/8/05 at 04:16 PM |
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Have seen the floats breaking away from the soldered joints on these carbs which usually just floods the engine. Could be a build up of heat in the
engine bay which in turn is boiling off the petrol in the float chamber ( can you hear it boiling when you stop the engine it should be audible).
That's my tuppence worth for now someone else will be along soon.
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JoelP
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| posted on 1/8/05 at 04:50 PM |
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mine stinks of fuel too, 1640 with twin webers. I had assumed it was a natural thing, probably wrong though...  All adds to the buzz
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SeaBass
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| posted on 1/8/05 at 06:02 PM |
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I'm using the same carb - but there were many versions. On my particular version there is a small but significant hole into the top of the float
chamber if you look carefully. This is obviously meant to be there to release pressure when fuel enters. I think this couple to the fact the engine
warms the carb mean that warm fuel evaporates through this small hole when the car has been out for a run...
Cheers
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