i have 5 pumps i am rebuilding this winter , 4 different models ,all changed from 2 seals to 3 seals ... the question is it alright to put grease between the seals ,the book doesn't call for it and 2 of my skies had water between the seals 2nd can you pack too much grease in the bearing and nose cone ? i think the less air and more grease the better