Originally Posted by S/V Antares
SabreKai, I made a up a jig to use when cutting down the rails. The drawings from Beta were perfect. After you get the tube and shaft in place you can attach the jig to the coupling and it makes it easy to fine tune the cutdown of the rails/stringers
he he, Your's isn't quite as detailed as mine will be (in progress even as we speak, should be done this weekend) as mine will have the entire bottom of the engine
roughed in. The bearers and shaftlog will be set together as one solid stiff unit with the shaft log long enough to project
out the bottom and become the new propellor bearing housing. I plan on tacking the shaft log to the prop struts, and then mount the jig on the bearers, then start cutting away at the old Volvo
mounts. (they look like locomotive parts
, they are massive) until I can get minimum clearance on the engine
bottom. I want to decrease the shaft angle. Once I have the height set, I'll start firming up the mounts and then weld both the prop strut, and the bearers. The shaft log is going to be a bit of a box shaped deal as the angle is too acute to get a good weld between the skin and the lower part of the tube. I will box it in and have room to do decent welds.
Once its all welded in, I'll take my trusty sawzall or my angle grinder with an abrasive cut off disk and remove the bits I don't need between engine and log and log and prop shaft.