On Tue, 13 Aug 2002, at around 15:30:05 local time, tim dafforn
<mqbsstrd@man.ac.uk> wrote:
>-------- Original Message --------
>Subject: Mystery Missfire
>Date: Tue, 13 Aug 2002 11:47:34 +0100
>From: tim dafforn <mqbsstrd@man.ac.uk>
>To: spitfires@autox.team.net
>
>
>
>Went out in the spit last week and for the first 2 miles she seemed to
>be firing on 3 cylinders.
>Stopped by the side of the road and check things over and noticed the HT
>connection to the coil was green with corrosion (coil is Lucas and has
>done 500 miles!!)
>I guessed this was the problem, attempted to clean the terminal and
>drove on.
>After about another mile the 4th cylinder kicked in and I had 50 miles +
>of glorious driving through the hills!!
>So to sort the problem I replaced the coil, only trouble is I can only
>get 3 cylinders.
>I know that the carbs (twin Webbers) are fine and full of fuel.
>I noticed that if I pull the HT lead of number 1 spark plug the engine
>tone hardly changes, any of the others and the car dies.
Tim,
What do your plugs look like? When I had this problem, it turned out
that I'd lost a scraper ring and oil would build up on the plug enough
to stop the spark from time to time. After a period of driving it
would frequently clear itself. Please tell me that all your plugs look
perfect!
ATB
--
Mike
Ellie - 1963 White Herald 1200 Convertible GA125624 CV
Connie - 1968 Conifer Herald 1200 Saloon GA237511 DL
Carly - 1977 Inca Yellow Spitfire 1500 FM105671
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