I apply grease to the pivot tube grease fitting until I see grease coming out top and bottom. Mine is old and I don't know if there ever were seals. But, if a set-up has rubber seals (like balls joints on a vehicle, I only apply grease until I see the seal bulge a bit. More and you can burst the rubber seal and it will let water in.
Once there is grease throughout, most fittings only require 1-2 squirts of grease when greasing is done on a regular schedule.
I added bright color zerk covers, as they remind me to grease and they make it easier for me to find the fittings when I am looking for them.
http://www.ebay.com/sch/i.html?_from...covers&_sop=15
btw can anyone explain marine grease vs car grease? Is it really that different?