its probably something simple
check the fuel supply is the float chamber full when it plays up?
try grabbing the carb and mving it about on tickover do the revs change?
try running wthout the filler cap on the tank vent may have got blocked.
Ray
Right car is constantly misfiring throughout the rev range. Sometimes dieing at junctions, sometimes stuck at between 2500 and 3500 revs no changing
down or anything makes a difference you have to pump the accelerator just to keep momentum at all. have changed the fuel filter, cleaned the carb and
jets to no avail, the car seems fine when first driving then as it gets warmer gets worse. Not a happy bunny as the car has only been running right
for 70 of the miles i have owned it. Think maybe the rolling road is my best tool to use but wonder if anyone has any ideas first??
2.1 pinto with twin webers. I dont think enough fuel is going through when you watch the fuel filter, any advice would be greatly appreciated.
What ignition are you running?
Could be worth checking your coil/points.
Where is your fuel line running? is it getting hot, boiling the fuel and giving you a vapor lock?
If its just started to happen, then i'd start off with looking at the ignition. If its always been a bit like that, then check your fuel lines
are clear, the filter isnt blocked and that your getting a decent fuel pressure.
Is it electrical or mechanical pump?
If it is an inline filter, I'd try the car with it removed. I had a similar problem once when I was using an inline filter that was too big. It
never filled with fuel and kept airlocking.
David
previous owner never had an issue car fine for 70 miles then not working, whats the best way of checking the fuel pressure?? Coil is on my list to check, all other electricals dizzy etc leads seem fine. Good call with removing the filter, is it feasible to just put a smaller one in?? are they fuel system car specific??
could be an air leak or lack of fuel
its probably something simple
check the fuel supply is the float chamber full when it plays up?
try grabbing the carb and mving it about on tickover do the revs change?
try running wthout the filler cap on the tank vent may have got blocked.
Ray
I hate these problems, is your engine distributor or ECU?
Check spark timing, static, idle and over 3500, check contact gaps, check plugs and leads.
I feel that if if always runs rough and there is fuel then it has the potential to be a spark problem
"I hate these problems, is your engine distributor or ECU? "
Distributor.
The fuel inline filter never looks to have enough fuel going through, when you turn of the ignition it takes about 10 seconds to fill up so just the
small bubble at the top is showing. i was thinking fuel starvation, however father in law thinks electrical. thanks for all the replies, my list of
stuff to check and recheck gets longer. I know its bound to be something simple but the list of little simple things to check is endless.
definatley sounds like a fuel supply problem the fuel filter needs to be full so i would sort that to start maybe take the filter out and see if it cures problem if not then investigate fuel pump, are you running a electric pump or the mechanical one?
quote:
Originally posted by chrisxr2
previous owner never had an issue car fine for 70 miles then not working, whats the best way of checking the fuel pressure?? Coil is on my list to check, all other electricals dizzy etc leads seem fine. Good call with removing the filter, is it feasible to just put a smaller one in?? are they fuel system car specific??