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Author: Subject: running on
deltron63

posted on 17/6/10 at 08:50 PM Reply With Quote
running on

i took the car out tonight for a blast, when i got back i turned it off and it ran on for a couple of seconds. any ideas why? ( it was a good thrash )
1800 zetec, 136 cams, megajolt, bike carbs.

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austin man

posted on 17/6/10 at 09:05 PM Reply With Quote
carboned up, running a little too hot, ignition timing out slightly





Life is like a bowl of fruit, funny how all the weird looking ones are left alone

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tomgregory2000

posted on 17/6/10 at 09:39 PM Reply With Quote
was the fan running?
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deltron63

posted on 17/6/10 at 09:52 PM Reply With Quote
yep, the fan was running. i've got light that comes on with the fan.
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Canada EH!

posted on 17/6/10 at 09:59 PM Reply With Quote
Turn off like an MGB, Foot on clutch, foot on brake, transmission in first gear, turn off key, lift foot off clutch. Had to do it every time I got the engine hot in traffic.
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nitram38

posted on 17/6/10 at 10:01 PM Reply With Quote
Could the idle be too high? throttle cable not returning fully after being held open?






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MakeEverything

posted on 18/6/10 at 07:26 AM Reply With Quote
Could be either a back feed from the electrics, or the combustion temperatures are too high.





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RazMan

posted on 18/6/10 at 07:55 AM Reply With Quote
I would say it was due to overheating possibly caused by weak mixture during your blat. Have you checked your AFR or had a good dyno session?





Cheers,
Raz

When thinking outside the box doesn't work any more, it's time to build a new box

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iank

posted on 18/6/10 at 07:56 AM Reply With Quote
Back feed through the fan or dieseling.
http://en.wikipedia.org/wiki/Dieseling

Did it cough and splutter to a halt, or die when the fan stopped?





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Anonymous

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Mark G

posted on 18/6/10 at 08:49 AM Reply With Quote
As above, its either the engine running on due to the fan running. To combat this IIRC you need to put a diode in the supply line to the fan.

or
The engine is running on due to some carbon build up inside the cylinders, usually some protruding head gasket, carbon build up on spark plugs or valves. To overcome this, the easiest option is to run some fuel additive in you're next tank of fuel.

Either way, its not the end of the world. Just a little annoying.

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deltron63

posted on 18/6/10 at 05:49 PM Reply With Quote
quote:
Originally posted by RazMan
I would say it was due to overheating possibly caused by weak mixture during your blat. Have you checked your AFR or had a good dyno session?


still looking for a local rr.
they check afr for me at the mot, slightly rich at full throttle, low and mid were fine.

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Mark Allanson

posted on 18/6/10 at 06:27 PM Reply With Quote
Didn't the Mk2 Escorts have a foofoo valve to discharge the manifold pressure when you turned off the ignition to prevent this happening?





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britishtrident

posted on 18/6/10 at 08:55 PM Reply With Quote
quote:
Originally posted by Mark Allanson
Didn't the Mk2 Escorts have a foofoo valve to discharge the manifold pressure when you turned off the ignition to prevent this happening?


And the Transit





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― From BBC TV/Amazon's Ripper Street.
[/I]

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