hoser wrote:
If the flushing don't work what are your thoughts on just removing the impeller cover then remove the impeller itself and cleaning the seal surfaces with a lint free cloth then assemble and try it again? That is if their is no visible damage to the seal surfaces.
Have you ever did a CSI on a automotive water pump they have a similar seal setup I have never seen a seal like the Pilot uses, hard plastic and what looks like a ceramic disc that mate and rub each other, I don't even see how its able to seal lol
That is a very good idea, then you would only need the water pump gasket.
As a matter of fact I think that you could probably get away with just replacing the half of the seal that sets in the water pump impeller, it is the part that gets worn from what I have seen. If the hard plastic side is worn as well then of course you would have to replace the whole seal.
I am not saying this is proper by any means, myself I would replace the whole seal.
A few other things that are possible but I doubt it, the spring could lose its tension, the spring loaded side could also develop a small tear or pinhole and the spring loaded part also has a sealant applied to it where it goes in to the case, I guess it is possible that it could leak there.
I have never taken a automotive water pump apart, I will cut one open sometime and see what it looks like.
Allrighty, Ill have to check the rubber spring part of the seal, I can see some black residue on the teflon impeller seal so maybe its the rubber part that wearing out. After reading post here, guys are saying the seals are very delicate and not to touch the seal. What is the best way to get the teflon seal out of the impeller without damaging it in case I want to flip and reuse?