trouble stopping

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jothina
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trouble stopping

Post by jothina »

when i turn of the ignition to stop the engine it couths and splutters for a second or two before stopping, i've set the timing as well as fitting new plugs points condenser and as far as i can tell the mixture is ok, other than that she starts and runs fine, any ideas what else to look at
cheers

john
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aupickup
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Post by aupickup »

to fast an idle on the engine coupled with poss timing
jothina
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Post by jothina »

what should tickover be set at?
john
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aupickup
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Post by aupickup »

GET THE TICK OVER SO THE IGNITION LIGHT IS JUST ON
jothina
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Post by jothina »

ok thanks
i'll try that
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DAVIDMCCULLOUGH
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Post by DAVIDMCCULLOUGH »

Do you use petrol additive? My blue minor always runs on unless I remember to put in the lead substitute, none of my other minors do this though!


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bmcecosse
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Post by bmcecosse »

Ignition light 'on' with an alternator will be tricky! It's designed to charge at idle. Basically - set the idle speed as slow as possible - but without it stalling when you plop foot on clutch. Try a different brand of petrol - and try advancing the ignition timing slightly - basically until you hear pinking, then retard again slightly until not quite pinking!
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Peetee
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Post by Peetee »

Possibly needs a de-coke. The deposits glow and cause the residual fuel and air drawn in to be ignited.
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bmcecosse
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Post by bmcecosse »

Indeed that is the cause - but these days it's usually possible to sort it without the dreaded 'de-coke'!!
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aupickup
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Post by aupickup »

THEY NEVER SAID THEY HAD AN ALTERNATOR
bmcecosse
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Post by bmcecosse »

Indeed - but just in case (let's face it most Minors now have alternators) - I have pointed out the problem to save possibly hours of futile twiddling trying to get the light on!
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aupickup
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Post by aupickup »

:D :D i still got dynamo :D :D
Matt
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Post by Matt »

Im not sure that most minors do have alternators. From what i've seen they are definately in the minority
Serial Morris Minor Owner and Old Vehicle Nutter
bmcecosse
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Post by bmcecosse »

Hmm - virtually all I see are alt - did we not have a poll about this some time ago ?
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Pikey
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Post by Pikey »

Just have a quick check over your tappet clearances. I had a very similar problem with my Pickup, Timing was correct, mixture seemed right, tickover was nice just like yours and it turned I my tappets were a bit on the tight side. A slightly open valve gets hot and would cause running on. 12 thou was the BMC specification but Ive read in previous threads that wider ones are better for unleaded petrol.
jothina
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Post by jothina »

thanks for the advise,
i do have an alternater, but thinking about it i just started using unleaded when the prob started so i think i'll look at the valve clearences
cheers

john
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jothina
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Post by jothina »

i've just slowed the tickover down a tad and advanced the timing to 5* tdc and it seems to have solved the problem, seems to run smoother being that little bit advanced as well
many thanks for the ideas and advise
john
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bmcecosse
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Post by bmcecosse »

Well done - I suggest you continue advancing little by little until you hear some pinking - then take it back slightly until no(or just v slight) tinkle when you put your foot down. It's then set to the optimum for your engine.
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