lubricating

Ok so I belong to a taylor only boat site and there is a thread there about putting oil into your berkely pump. I'm posting this here because the responses seem to come a lot faster and the collective knowledge on this site is amazing. On to the question, I have a 12je and I have never lubed it...

What should I use to lubricate the bowl bearings? 90W gear oil or a good marine grease? Which would be better? I don't want to water lubricate because the river it will be run in is too silty I think. The water is always brown, especially in the spring, and it runs through a large portion of the...