How much movement should be on PSS seal

Oct 20, 2017
18
Hunter Legend 37.5 langkawi
Hi all,

i had replaced the old shaft seal with a PSS unit, but noticed a lot of movement on the seal.
how much is allowed
pls email me directly as the video is too large to upload.
my boat is the hunter legend 37.5 and is in phuket.
my email is fabianf1971@gmail.com

rgds

fabian
 
Oct 20, 2017
18
Hunter Legend 37.5 langkawi
When the engine runs there is lot of movement.
I cant really add it here.
Its like vibrating even when it has been tightened.
 
Aug 1, 2011
3,972
Catalina 270 255 Wabamun. Welcome to the marina
Is it compressed like the installation docs say?
 
Oct 20, 2017
18
Hunter Legend 37.5 langkawi
Yes it is but it looks like a shaft misalignment.
I hv another post on aft leak and there is a picture.
Pls hv a look and offer advice
 
Oct 24, 2010
2,405
Hunter 30 Everett, WA
I assume the movement you are talking about is between the stainless and the carbon part of your shaft seal????
I would wonder if the shaft coupler (the face that mates with the transmission coupling) is not true to the axis of shaft rotation. The coupler was likely removed or even replaced to install the PSS which would be when this happened.

You should be able to check this by unbolting it and checking shaft alignment, then rotate the shaft and check that you get the same answer.
Ken
 
Aug 1, 2011
3,972
Catalina 270 255 Wabamun. Welcome to the marina
If the shaft is misaligned then you’re going to see it. If the pss is not leaking, then the problem is someplace else most likely.