I am going to be replacing the sealing ring inside the impeller housing on my engine because I am getting a drip between the housing and the pulley. I can feel the old one in a recessed space at the back face of the impeller housing where the shaft comes into it. Before I begin and realize it is not as easy as it appears I have some questions for anyone if they have done this before.
To remove the old sealing ring, do I have to remove the whole pump which includes the pulley from the harmonic balancer, or can it be cut out from the recessed space with the shaft still through it.
When I put the new rubber sealing ring on, it seems to me that it would be easier to have the pump reattached if it is off then fit the sealing ring over the shaft then press it into the recessed space rather than press it into the space while the pump is off and then try to slip it over the shaft. Also will pressing the ring into the space with the shaft already through it require some mechanical assistance or can I do it with just my fingers as I expect it to be a fairly tight fit. Does this make sense?
Finally, what is a good lube to use that won't degrade the rubber ring and assist getting it back together and allow the ring to be lubed around the shaft so it won't burn up when starting the engine.
On the diagram below #6 is the sealing ring, though you can't tell from the diagram the ring is set into a recessed space where the shaft comes through the base of the impeller housing.
To remove the old sealing ring, do I have to remove the whole pump which includes the pulley from the harmonic balancer, or can it be cut out from the recessed space with the shaft still through it.
When I put the new rubber sealing ring on, it seems to me that it would be easier to have the pump reattached if it is off then fit the sealing ring over the shaft then press it into the recessed space rather than press it into the space while the pump is off and then try to slip it over the shaft. Also will pressing the ring into the space with the shaft already through it require some mechanical assistance or can I do it with just my fingers as I expect it to be a fairly tight fit. Does this make sense?
Finally, what is a good lube to use that won't degrade the rubber ring and assist getting it back together and allow the ring to be lubed around the shaft so it won't burn up when starting the engine.
On the diagram below #6 is the sealing ring, though you can't tell from the diagram the ring is set into a recessed space where the shaft comes through the base of the impeller housing.
