Thanks for the info. I hope to stick with 4300, if I can find it.I use a length of all thread with a nut on one end so the gears & spacers slide off the shaft directly onto the rod
Then I degrease them, & do a visual inspection 1 at time before sliding back onto the shaft
Double on Rivets warning , they are Sharp and blood will rust steel & dezinc brass quite efficiently
Where possible I use 00 or 000 liquid grease and live with the slight seepage as it remains liquid
Another tech I know uses chain boiling grease which is lanolin with graphite .
The lanolin melts at a very low temperature so sloshes around and lubricates beautifully then as it cools down it solidifies to the consistency of bentonite axel grease so does not leak out when not in use .