help with misfiring Metro
Posted: Tue Jul 07, 2015 9:44 am
My friend owns an immaculate 1988 Metro City 1.0L.
The car has an annoying problem which I am struggling to resolve and I am wondering if anyone has any suggestions. The car runs fine for at least 30 minutes, sometimes longer, then it will start to misfire quite badly. Stopping and waiting for a while usually cures the fault. It can also be brought on by parking the car for around 5 minutes after a reasonable run. These symptoms lead me to believe it is a temperature related problem. I should also add that we do have a lot of spares from another Metro which was written off. Both cars have done less than 30000 miles.
To attempt to fix this I have fitted new plugs, points and condenser. I have also swapped the coil, distributor, carburettor and fuel pump from the other car which was running fine until its accident. I also re-routed the fuel pipe away from the exhaust system and fitted an inline filter.
I have also checked the engine compression and valve clearances and both are fine.
None of the above had any effect on the fault. One final thing having fitted the inline filter I do notice that there is the occasional bubble in the fuel line and this seems to increase with time.
I am now at a bit of a loss as to what to do next so would appreciate any suggestions.
Thanks
Paul
The car has an annoying problem which I am struggling to resolve and I am wondering if anyone has any suggestions. The car runs fine for at least 30 minutes, sometimes longer, then it will start to misfire quite badly. Stopping and waiting for a while usually cures the fault. It can also be brought on by parking the car for around 5 minutes after a reasonable run. These symptoms lead me to believe it is a temperature related problem. I should also add that we do have a lot of spares from another Metro which was written off. Both cars have done less than 30000 miles.
To attempt to fix this I have fitted new plugs, points and condenser. I have also swapped the coil, distributor, carburettor and fuel pump from the other car which was running fine until its accident. I also re-routed the fuel pipe away from the exhaust system and fitted an inline filter.
I have also checked the engine compression and valve clearances and both are fine.
None of the above had any effect on the fault. One final thing having fitted the inline filter I do notice that there is the occasional bubble in the fuel line and this seems to increase with time.
I am now at a bit of a loss as to what to do next so would appreciate any suggestions.
Thanks
Paul