Originally Posted by bmweuro
Push rod seals and the sealing area should never ever have any sealant or oil when the are being installed. As the rubber dries up and shrinks you will need to do this again.
Funny you should say that, since the advice I got fifteen or twenty years ago was to grease them up so they slide on the tube. Grease them all over.
So I've used Silicon grease since it's most compatable with rubber and plastics and doesn't dry them out. The ones I've done this way seal and don't dry up later - I never have to mess with them again.
I agree not to use sealant, it doesn't work. And it's a total bitch to clean up next time around.