Originally Posted by sdowney717
Also do you think that injecting grease would swell the rubber o ring and jam the seal?
Either that or grease would allow the rubber to slide, dont know unless someone experiments.
There are different types of o-ring materials, all are resistant to water
. Here is a chart of o-ring materials, though we don't know what your seal is.
(everything you need to know about o-rings and more) >>> http://www.parker.com/literature/ORD...g_Handbook.pdf
The higher the acrylonitrile content, the better resistance to oils. But it's most likely butyl (cheapest).
I use to rebuild
for the City here and I can tell you that Reciprocating Seals
were always the hardest to get to seal. The surfaces have to be clean and scratch free. Once you lose the smooth surface, you lose any significant pressure behind it. I'm surprised they are using it against a carbon ring. It would have to be polished to seat, unless it were bonded.
The difference in design of face seals has to do with the design of the pump. The Jabsco's are small & w/o much space to work with.
Odd! When I look at the picture of your pump it shows a lip seal w/the o-ring on the out side surface.