The rotor should “float” and be only minimally affected by the shaft runout. ![]() We found that the carbon stator was resting against the shaft at the top where, if properly installed, the shaft should be central in the bellows and rotor. We decided to take it apart to see if it was installed correctly when the shaft work was done. The shaft runout is more than it should be, but normally PSS seals are fairly forgiving. The best possible solution is to replace the shaft, flange, and PSS seal assembly but, the more we think about this, the more we wonder why it leaks with only a relatively small amount of shaft runout. As you can see in picture this slight leak is making a real rusty mess of the area around the PSS. Its runout is only around 0.008″ but it’s enough to vibrate slightly and this causes the PSS to leak. In the last yard service, the prop shaft was replaced and unfortunately the new shaft is out of true. We had PSS on our previous boat for 10 years and it never leaked, and have had excellent service on this boat for 8 years. Now that the boat is out of the water, we can inspect the PSS (packless shaft seal) installation. And a live map of our current route and most recent log entries always is available at /maps. Click any image for a larger view, or click the position to view the location on a map. Our first was in Whangarei, NZ.īelow are highlights from July 6th through 11th, 2020. This is the second time Dirona has been hauled out on a railway instead of the more common travel lift. The yard is very commercial boat focused, but everyone was super-helpful, careful, and professional, and the job went extremely well even though our boat is a bit unusual for this facility. The Stornoway slipway had recently re-opened after the lockdown and was able to fit us in. We initially had planned to do this later in the year while we were in the Mediterranean, but that wasn’t going to happen. ![]() Once the vessel is in the correct position, the arms are simply raised into place rather than having to position supports and blocks by hand as the boat comes out of the water.Īfter refuelling, reprovisioning, refinishing our teak furniture, completing the wax job, and replacing the cylinder head on our generator, our final Stornoway project was a haul-out for bottom paint and an insurance survey. The railway cradle uses three pairs of hydraulic support arms to hold boats in place, making for an efficient lift process. The Stornoway slipway is a big commercial railway that can lift boats up to 50m long and weighing up to 850 tons.
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