This is very common,but can be repaired.There is a small plastic collet in the top of the Dizzy shaft under the rotor arm - this will now be broken after pulling the rotor off.The shaft rusts,swelling up slightly and makes the rotor a tight fit.
You need to remove the dizzy,(its alot easier to do this on the bench/carefully in a vice) ignore the warnings about removing the clear plastic shield and strip the unit down.You will see that the balance weights in the bottom have come out of their slots and the advance/retard will no longer work.Clean it all up,oil the main shaft and carefully put it all back together,you can crimp up the advance springs if they are a bit loose.Just be careful in setting the air gap on the reluctor/pickup,2-3 thou is ok.When its all together again a small piece of platic air hose cut about 1/4 in long will do to replace the broken collet,(RR EAS line hose is what I use) A very thin smear of grease on the shaft will help the rotor off next time.Here in the UK we only use LR or Lucas rotors and caps as the aftermarket ones are so poor.Put the dizzy back in and set the timing up and you are away.Two things,first the rotor should twist against spring pressure whilst holding the drive gear at the bottom - not slop around.Second,ALWAYS hold the rotor shaft down with a screwdriver when trying to get the rotor off.
|
