Asleep at the wheel
Join Date: Sep 2011
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Installing prop shaft flange/transmission coupling
I need to replace the stuffing box hose on my boat. After nearly 9 hours of prying, oiling, heating, banging, and a lot of swearing, I have everything apart. I had to cut the flange or transmission coupling (or whatever it is called, I'm going to call it a flange 'cause that's easier to spell) off the shaft, because it just was NOT coming off any other way. If you want all the gory details, they are in my blog.
Anyway...I now have the new flange, and I'm planning on taking it to be fit and faced to the prop shaft, which I hope will happen this Friday (unless I can find a shop in the Philadelphia, PA area who can do it sooner). Then I get to re-install the shaft in the boat. I can't install the shaft from inside the cabin, the engine is in the way. That means that the flange has to come off again after it is fit and faced to the shaft. Then, when the shaft is back in the boat, I need to reinstall the flange. I assume it's going to be a pretty tight fit, and alignment is going to be tough, too (I will need to match the flange with the holes in the shaft for the set screws). How do I do this inside the engine compartment?
In theory, a block of wood at the propeller end of the shaft and some good hits on a hammer should help drive the shaft into the flange. But what keeps the flange from sliding forward in the boat? I don't want to attach it to the transmission out of fear of damaging the transmission, and I don't remember seeing any other protrusions near the shaft log that I could use to help keep the flange from moving. So, how do I get enough force to be able to do the install?
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1980 Allmand 31
1975 Albacore 15
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Last edited by jimgo; 04-21-2014 at 11:33 AM.