I have just rebuild my 12a distributor which i took apart years my question is does it matter which holes on the bearing plate the the pick up adjustment bolts on to ? would this make a difference ? i also removed the springs from the weights as its is going in to a 12bp . any advice on the position of the bearing plate holes ? and on the method i used to lock the dizzy

 

http://www.ausrotary.com/viewtopic.p...dizzy#p2480553



http://www.ausrotary.com/viewtopic.p...t=locked+dizzy









there is two methods,, partial curve dizzy and fully locked dizzy



i use the partail curve on very large extendies or LPG cars for street and the full lock is for mad bridges and racers



as for where it all lines up,, you will find when you replace the vac pots they will dictate to you where the dizzy race should be positioned

there is also small datum marks in some dizzies for you to align the different base plates , should be self explanatory when you fit the vac pots

 

thats the problem there on the bearing plate there are 3 screw holes on one side and on the other there are 2 screw holes separated by a large cut out space

i have tried mounting both the leading and trailing adjustments on the 3 hole and the 2 hole side and they both seem to work is that a right place to mount the leading adjustment to the plate ( the 3hole or the 2hole side )? the whole plate can be rotated easily

look at the pic below u can see the side with the 3 holes and the side with the 2holes separated by a larger cut out



http://www.ausrotary...b66e037d74794c6



my question is which side of the plate goes on the vacume pots side and which side do i screw the trailing adjustment to ?

the 3 hole or the 2 hole side of the bearing plate