> Some long time ago I replaced the conventional canister type air cleaner
> on my TC with twin sports filters, the front one of which required some
> minor modification to clear the radiator stay.
>
> Now I have noticed before and again today that on occasion I get a spark
> flash from the (front) air filter at the point where it likely as not
> makes some minor contact with the stay.
>
> I have sought to overcome this by cutting a piece of plastic hose,
> splitting it down the middle and slipping it over the stay so as to
> insulate the two components.
>
> This should cure the problem but I am confused as to the cause and quite
> why I should be getting any grounding here at all. I've never received a
> boot from touching the carburettors or the engine block when the engine
> has been running.
>
> The spark flash seems to be intermittant - most probably in sync with one
> of the spark plugs firing. Which one and why I'm buggered if I know.
>
> Sometimes on a long run during which the car performs perfectly when I get
> into traffic again and in an idle situation the engine will miss, idle
> rough and play up a bit. This may be the cause of that problem with a
> short causing a plug to misfire.
>
> Any ideas where this short might be coming from?
>
> Regards to all
>
> Paul
>
Paul...
My guess is that your problem is a bad or missing ground strap from the
engine to chassis. The major arcing is when you pull on the starter cable.
The cable should run from chassis to gearbox.
Press on regardless,
Blair Engle
The Classic MG Shop
______________________________________________________________
Blair Engle engle@phy.fsu.edu
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