I have had one rudder shaft leaking for a few months. Just hauled out this morning and have removed the old packing. There were a total of 8 rings of 1/4" packing, but the nuts had still become 'two blocked'. So I will need to add quite a lot of new packing. I can also use some washers under the nuts to get a little more travel in the fitting at the top of the gland. I did not think of doing that earlier, as I did not realise the nuts were on studs and I had run out of thread
A question. Can I simply wrap the packing around the rudder shaft in a continuous spiral? Or is best practice to have seperate rings with 45° chamfer at the ends, and offset the end joins of each ring?