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Scott,
I am not aware of any articles or directions for the rebuilding process ... mostly it is just disassemble, clean, measure, common sense stuff. The bushings I have used were 'oilite' bronze type. It probably would help to take the old bushings to the store so that the OD can be measured precisely.
The wear that has occurred is associated with the centrifugal advance mechanism. There is no problem with the points in any CDI-system from '69 thru '77 ... they tend to last 5 years without problems. So, putting in optical triggers is just fluff and advertising hype ... it accomplishes nothing to improve reliability of a Bosch CDI-system! If there is wear on the shaft or bushings you will still have timing 'scatter' with optically-triggered ignition! No MSD ignition or other aftermarket system will improve the performance over the factory Bosch system, and as long as there is a centrifugal advance-controlled ignition, you still have to deal with wear inside the distributor.
Bosch grease is used on the pivots for the advance weights, on the cam and rubbing block for the points. Oil is used down the center of the shaft for the centrifugal advance mechanism, under the felt plug ... under the rotor. It should be oiled at every engine oil change, and any time you do anything to the ignition system: check timing, change sparkplugs or wires, etc. If you oil the distributor and check the end-to-end resistance of the wires at every oil change and valve adjustment, you will have a trouble-free engine for a longer time than if they are ignored! Simple fact. Nothing in aftermarket ignition systems will change that fact ... there is no such thing as maintenance-free ignition as long as you still have a distributor on your engine!
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Warren Hall
1973 911S Targa
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