hello.
can anybody offer some advice.
the story.....
i have a 2 1/4 petrol series 2a with a latter 5 bearing crank engine with zenith carb.
i was going down a long hill, (nothing too bad) in 3rd using engine breaking to maintain my speed. When i got to the bottom of the hill i put on some gass and it started to cough and splutter and try stall. if i let go the engine ran ok.
i pulled over and the engine ticked over fine. touch the throttle and it coughed and tried to stall.
feathering the throttle i could just manage to get it to rev but not smoothly.
eventaully (after having the stomach drop feeling when i knew id have to call the RAC) i managed to get it to rev and sustained about 3000rpm then the missfire stopped.
curred i though, must have been crap in the fuel i thought.. so drove to destiantion.
ran fine for a day
saterday i thought i should put an inline fuel filter just beofre the carb so i can see fuel and debris just beofre the carb if it happens again..
well, fitted that but took the carb off to give it a clean up.
refitted and runs fine, took out for a drive but after 1/2 mile same thing.. coughs, splutters but will tick over.
it will run with the choke out though.
managed to get back to workshop and stripped carb again, fully, rebuilt with gasket gel, cleaned mixture screw, all the channels etc. rebuilt, refitted, exactly the same.. (mixture screw all the way in, then back 2 full turns)
it seems to be running really rich, black smoke, and when reving it missfires i get flames from the exhaust.. no power, it couldn't pull the skin of a rice pudding..
adjusting the mixture screw doesnt make a slight bit of difference, either to the smoke, the sound of it or the revs.
i have noticed that the inline fuel filter i fitted doesnt seem to be filling with fuel, but enought must be getting through to keep it running..
so, what do you guys think??
it started as an intermittant problem which is now there all the time once warm.
i had a full day saterday and had to leave the old girl at the workshop and walk 2 miles home..
only problem is my only other form of transport is a motorbike and the bad weather is comming... need to get the old girl fixed asap!
any help, suggestions or just looking at this from a different angle appreciated!
Suzbug
can anybody offer some advice.
the story.....
i have a 2 1/4 petrol series 2a with a latter 5 bearing crank engine with zenith carb.
i was going down a long hill, (nothing too bad) in 3rd using engine breaking to maintain my speed. When i got to the bottom of the hill i put on some gass and it started to cough and splutter and try stall. if i let go the engine ran ok.
i pulled over and the engine ticked over fine. touch the throttle and it coughed and tried to stall.
feathering the throttle i could just manage to get it to rev but not smoothly.
eventaully (after having the stomach drop feeling when i knew id have to call the RAC) i managed to get it to rev and sustained about 3000rpm then the missfire stopped.
curred i though, must have been crap in the fuel i thought.. so drove to destiantion.
ran fine for a day
saterday i thought i should put an inline fuel filter just beofre the carb so i can see fuel and debris just beofre the carb if it happens again..
well, fitted that but took the carb off to give it a clean up.
refitted and runs fine, took out for a drive but after 1/2 mile same thing.. coughs, splutters but will tick over.
it will run with the choke out though.
managed to get back to workshop and stripped carb again, fully, rebuilt with gasket gel, cleaned mixture screw, all the channels etc. rebuilt, refitted, exactly the same.. (mixture screw all the way in, then back 2 full turns)
it seems to be running really rich, black smoke, and when reving it missfires i get flames from the exhaust.. no power, it couldn't pull the skin of a rice pudding..
adjusting the mixture screw doesnt make a slight bit of difference, either to the smoke, the sound of it or the revs.
i have noticed that the inline fuel filter i fitted doesnt seem to be filling with fuel, but enought must be getting through to keep it running..
so, what do you guys think??
it started as an intermittant problem which is now there all the time once warm.
i had a full day saterday and had to leave the old girl at the workshop and walk 2 miles home..
only problem is my only other form of transport is a motorbike and the bad weather is comming... need to get the old girl fixed asap!
any help, suggestions or just looking at this from a different angle appreciated!
Suzbug