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MG MGB Technical - spark plug problem????

I changed my spark plugs yesterday, but it didn't sound or run very well, it was misfiring coughing and spluttering. So i took the new ones out and put the old ones back in, now it was just the same with new and old the thing is it was ok with the old ones really.
What have I done wrong??? I am not a mechanic or very mechniclly minded, but i will have a go.
The car is a mgb roadster 1979. Any help will be greatly apreciated
Stuart McCabe

I wonder if you have shown up an incipient fault in the HT leads. These must be disturbed to fit the plugs. Check that your spark is not running to ground before reaching the plugs.
Stan Best

You presumably did one plug at a time so no chance of plug leads being mixed up......So I'd agree with Stan! M
Michael Beswick

Stuart,
If you are looking at the top of the dizzy cap... the lead to the #1 plug (front)should be at about 2 oclock...then moving clockwise the next lead should be #2 plug then the #4 plug and finally the #3 plug. If the leads are correct then check the condition of your cables and make sure they are all on tight.
Frank
Frank Mooring

Thank you all very much,, for some reason I seem to of put a HT lead back on wrong......no idea how this happend as I did them all one by one, but there you go disaster over, the benefit of this little drama is I know have new HT leads new plugs and a little more knowledge than before, once again thank you all very much for the help you gave me.
Stuart
Stuart McCabe

This thread was discussed on 31/08/2008

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