Thanks KB. You have put me on the right track for starters. But on closer inspection today, there was definitely a very loud tweeting sparrow inside the distributor. Lest not we forget the humble dizzy, needs some tlc every now and then. 10 minute fix. The points cam was as dry as a
needed spot of grease. A little WD40 down the shaft and the rotor reset to fit more snug on top...Voila!! No more screaching bird. Thank
nothing more terminal.
Cheers all, B.