In this episode of Sailing Nandji, our new engine Fang is finished off. We finish of the drive system installation installing the PSS Shaft seal, align the engine and install the Sigma Drive. The Sigma Drive in our eyes is a genious piece of engineering allowing and compensating for any alignment issues and protecting damage to our gearbox. We run our new 3 inch exhaust and this involves cutting a new hole in the sides of Nandji. There are 2 types of people that own boats... Ones that drill holes in them and the ones that dont!
The PSS Shaft seal is what keeps the water out of Nandji. It was very easy to install and will last a very long time. The seal is created by the smooth stainless rotor that is attached to the shaft and rotates. This applies pressure to the carbon bellow that is stationary and attached to the stern tube.
The Sigma Drive is an engineering genius. This replaces the need to have a coupling joining the shaft to the gearbox. The Sigma Drive allows up to 3 degrees in variation therefore adding a good sense of security of never doing damage to our gearbox or cutlass bearings. We aligned the shaft to gearbox with the normal coupling, then removed and installed the Sigma Drive. As Nandji is a wooden boat, normally we would have to realign the engine in the water as the boat takes her shape once again, but with the Sigma Drive, no need for that!
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