I just finished replacing our PSS seal. It was an older model without the vent and hose. It still worked well, no leaks. Rather than just replace the rubber bellows I bought a PSS complete. It was a awkward place to work but it did all come apart and the new components are installed.
I used Maine's suggestion of buying the S/S backing ring from McMaster Carr.
When I did the final adjustment to compress the bellows I positioned the backing ring flush with the PSS seal and clamped it to the prop shaft. I then compressed the bellows and put a 3/4" spacer between the PSS seal and the backing ring. It was then easy to just tighten down the set screws to lock the seal in the correct position. I then removed the spacer, repositioned the backing ring tight to the PSS seal and was ready to install the hose on the carbon ring.
In my case it would have been very difficult to hold the bellows compressed in the right position while tightening down the the setscrews. This ring made the job easy, I was glad he suggested this, thanks !
Bob
I used Maine's suggestion of buying the S/S backing ring from McMaster Carr.
When I did the final adjustment to compress the bellows I positioned the backing ring flush with the PSS seal and clamped it to the prop shaft. I then compressed the bellows and put a 3/4" spacer between the PSS seal and the backing ring. It was then easy to just tighten down the set screws to lock the seal in the correct position. I then removed the spacer, repositioned the backing ring tight to the PSS seal and was ready to install the hose on the carbon ring.
In my case it would have been very difficult to hold the bellows compressed in the right position while tightening down the the setscrews. This ring made the job easy, I was glad he suggested this, thanks !
Bob
