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Old 08-09-2015, 17:22   #1
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PSS Shaft Seal

Recently I noticed that water will spray out of the seal when I bring the throttle up to about 2800 rpm. Sometimes, if I bring it up slowly it won't spray, but either way, I need to fix it.

Anyone else have this experience? Any thoughts on a solution? If I have to replace the O-rings, does the drive shaft need to be pulled or can it be done in water.

Thanks for any thoughts.
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Old 08-09-2015, 17:25   #2
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Re: PSS Shaft Seal

Have you tried making the bellows tighter?


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Old 08-09-2015, 17:32   #3
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Re: PSS Shaft Seal

No, but I went on the their website and it seems that is a good possibililty. It doesn't say whether increasing the compression can be done w/the boat in the water however. Do you know if that's possible/advisable?
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Old 08-09-2015, 17:39   #4
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Re: PSS Shaft Seal

Whenever you fiddle with the bellow some water will get in... no problem. But you can tighten it... compress bellows and this may do the trick. But why 2800 rpm? Is there some vibration at the speed? Does it drip at all or ever or just at 2800?
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Old 08-09-2015, 17:48   #5
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Re: PSS Shaft Seal

Tightening the bellows in the water no problem. Make sure you always have a hose clamp or zinc mounted on the shaft so the seal part can't slide on the shaft, should it ever loosen up.


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Old 09-09-2015, 12:15   #6
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Re: PSS Shaft Seal

Don't forget there are 2 set screws per hole in the s.s. collar!!!!! Ask me why I said this. NO No don't. Bellows compression from static neutral is 3/4 inch for 3/4 to 1 3/8 shaft. 1 inch for 1 1/2 to 3 3/4!!!
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