What Is The Secret

[CaptDave]

The dripless shaft seal is leaking underway when under presure on a 2" shaft. Have to loosen up the double set screws and slide back and retighten set screws. Now the question, what is the easiest way to slide these back and hold them when adjusting? I know if you push on one section it puts pressure on the opposite side and wont slide. Please give me your advice in this.

Thanks,

Dave

 

[F/V First Team]

easiest way is to upgrade to a strong seal
aside from that you have to straddle the shaft, use your core muscles to slide the ring aft, use your hand like you're choking a turtle and cock it a bit at an angle, should stay in place while you tighten it up

 

[Hammer Slammer]

Dave, I put a shaft zinc in front of mine in the event that my set screws slipped while underway the collar would only move 1/4 " or so

 

[Pedlyr]

Whenever I mess with any shaft mechanical seals I use a hose clamp on the shaft so I don't go too far.

I also use a little bit of very soapy water with a throwaway brush which I find helps things to re-seat. Acts more like a lubricant. Especially when hauled out and dry. Still helps in the water too.

 

[captainlarry84]

dripless

Dave, I assume you have a PSI shaft Seal? I would check your water feed for a cloig. 99% of the time the seal start to leak because the water feed is clogged. Make sure you are getting good flow. If the seal was absence of water chances are it may need to be replaced.
For tighting: First I back off all the set screws and then mark the shaft with tape. Next I slide back the SS donut 1 I tighten one screw to hold it, then I dimple the other hole with a drill it foe the set screw to sit in. Next I repeat the other side.
I like the added protection of the shaft zinc to act as a short stop.
My seal has been in place 1640 hrs never an adjustment. I always check my water feed very often to make sure a piece of zinc or other debris it not causing a problem. Lastly make sure that your water feed is high on the system and you did not tap into a low salt water drain