Just took the cap off, and looked inside, the carbon tip had snapped off, i actually saw it inside the distributor first. Hopefully it will be easily solved with a new cap then. Cheers
Alex
EDIT: They say bad luck comes in 3's, replaced the distributor cap, didnt start, replaced rotor arm, and started with a misfire, pulled each plug and cylinder 2 didn't make a difference. Traced the lead back and it was broke at dizzie end. Going to replace the leads now. Thanks for the input Tab.
Alex