Bisho
21st January 2008, 10:24 PM
g'day all
i've got a few issues surrounding my weber carbie on my 2.25 petrol. ok 1stly.
To me it seems it drinks a lot of fuel (the fuel guage is dicky, but i'm still not getting very good mileage). I know they aren't the most efficient or aerodynamic of beasts, but i think this is a bit much. I know they are sluggish also, but i think mine might be a little overly so. When the engine is almost warm and i put the choke back in, i find it chokes a little or splutters in low revs, is this normal?
1. I'm not exactly sure if its the carbie or not, but when cold there seems to be a lot of black, unburnt fuel coming out of the exhaust until the engine reaches operating temperature. I've fiddled with the idle mixture setting a tad, making it leaner and so on, but still there is unburnt fuel. I know someone who had as 11a, who said he also had the problem of stinking up the neighbourhood and using a lot of fuel (think he had a solex), but he changed the jet in teh carbie to a 0.25mm or something or other, and bingo, now it runs like a gem, he reckons he can spin the wheels in 1st and 2nd! I dont know if i beleive him, but i do know his has only got 33k original miles on it.
I also have genie extractors on the car ( which i didnt recognise for ages!) which if anything, i think would help effeciency!
So if anyone has any ideas, or theories, i'd love to hear them. I've also heard conflicting evidence regarding weber carbies in that, some sources say they are more effecient when driving at lower throttle movements as they are a 2 barrel carburettor (i drive as conservatively as i can). And thus this makes the weber less responsive (less performance). While other sources say weber's do enhance performance but inhibit economy. I've heard solex's can get better mileage?
either way, i know there were some fuel probs with the car with the prev owner, which is why he fitted an electronic fuel pump and the weber carbie.
sorry it's an essay!
cheers!
john
i've got a few issues surrounding my weber carbie on my 2.25 petrol. ok 1stly.
To me it seems it drinks a lot of fuel (the fuel guage is dicky, but i'm still not getting very good mileage). I know they aren't the most efficient or aerodynamic of beasts, but i think this is a bit much. I know they are sluggish also, but i think mine might be a little overly so. When the engine is almost warm and i put the choke back in, i find it chokes a little or splutters in low revs, is this normal?
1. I'm not exactly sure if its the carbie or not, but when cold there seems to be a lot of black, unburnt fuel coming out of the exhaust until the engine reaches operating temperature. I've fiddled with the idle mixture setting a tad, making it leaner and so on, but still there is unburnt fuel. I know someone who had as 11a, who said he also had the problem of stinking up the neighbourhood and using a lot of fuel (think he had a solex), but he changed the jet in teh carbie to a 0.25mm or something or other, and bingo, now it runs like a gem, he reckons he can spin the wheels in 1st and 2nd! I dont know if i beleive him, but i do know his has only got 33k original miles on it.
I also have genie extractors on the car ( which i didnt recognise for ages!) which if anything, i think would help effeciency!
So if anyone has any ideas, or theories, i'd love to hear them. I've also heard conflicting evidence regarding weber carbies in that, some sources say they are more effecient when driving at lower throttle movements as they are a 2 barrel carburettor (i drive as conservatively as i can). And thus this makes the weber less responsive (less performance). While other sources say weber's do enhance performance but inhibit economy. I've heard solex's can get better mileage?
either way, i know there were some fuel probs with the car with the prev owner, which is why he fitted an electronic fuel pump and the weber carbie.
sorry it's an essay!
cheers!
john