engine keeps running
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hi peeps, have a problem with my escort mk4! When I turn the engine off, it keeps running for like 5 seconds until it stops completely. It does it frequently not all the time. What can be the cause? runnign rich, carbon deposits, timing?
its a 1097cc valencia engine, uses unleaded petrol.
its a 1097cc valencia engine, uses unleaded petrol.
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As you say most likely needs a de coke, carbon basically built up on the valves this causes hot spots which ignities the fuel after switch off hence the running on, has the timing been adjusted as well for the unleaded? Although unlikely to be causing this problem.
Martin
Martin
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dont have a garage and its fuckin raining outside![Wink](https://passionford.com/forum/images/smilies/icon_wink.gif)
The engine was built from factory to run unleaded mate. Today I poured some redex in the carb and revved the engine, will see how it goes tomorrow now!
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As you say most likely needs a de coke, carbon basically built up on the valves this causes hot spots which ignities the fuel after switch off hence the running on, has the timing been adjusted as well for the unleaded? Although unlikely to be causing this problem.
Martin
Martin
#7
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lmao, mine used to do this mate, it turned out it was a bad earth on my back lights! i think it used to cut out if i turned the heated rear screen on while it was doing it.. cant remember now.
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yes its quite rare ( and shit slow ) lol, cant even find a manual for it too!
dont know bout the octane, i just put normal unleaded.
Changed the plugs in march, will take a look at them. fortunetely today it didnt do it, maybe it was the carbon build up! will see the next few days.
Is a decoke expensive or difficult to make?
dont know bout the octane, i just put normal unleaded.
Changed the plugs in march, will take a look at them. fortunetely today it didnt do it, maybe it was the carbon build up! will see the next few days.
Is a decoke expensive or difficult to make?
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we cant choose here in malta mate lol, its either lrp, unleaded, diesel or bio diesel lol!! shit I know![Sad](https://passionford.com/forum/images/smilies/icon_sad.gif)
can the coke build up effect fuel consumption and performance as well?
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can the coke build up effect fuel consumption and performance as well?
Last edited by Ryan_3; 23-09-2010 at 06:24 PM.
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well the diaphram was fucked so has been changed, the timin gi snow perfect, runs alot smoother now.BUT it keeps on doing this, mechanic now told me that it has alot of carbon build up and will need to remove the head!
Is the seafoam stuff any good? or do I basically take apart the whole engine with new rings etc.
Is the seafoam stuff any good? or do I basically take apart the whole engine with new rings etc.
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the build up of carbon creates hot spots which leads to it running on/pinking/detonation whatever you want to call it
so you will need to open up the head/block and literally grind the carbon deposits off the face of the head, all around the valves and probably relap the valves into the head again
so you will need to open up the head/block and literally grind the carbon deposits off the face of the head, all around the valves and probably relap the valves into the head again
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yes mate, but to be fair its not that bad on fuel and it wont be economical then surely?
but what would be the cost of that? I know its a slow engine etc to start with, but I am going to keep this car standard and 'one day' rebuilt it.
but what would be the cost of that? I know its a slow engine etc to start with, but I am going to keep this car standard and 'one day' rebuilt it.
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