The Strut, Shaft, and Shaft Log

Getting the engine in the proper position requires a lot of test fitting to establish location of engine beds and all the other items.

When you’re building an inboard boat, getting the engine and propeller shaft in perfect alignment is an interesting process.  It’s a logical process that involves aligning the engine and transmission, shaft, shaft log, and strut.  It starts with the strut (the piece that holds the shaft in place just forward of the propeller).  There is a tube the shaft passes through that gets glued into a hole bored through the keel.  Getting that tube, called the shaft log, glued in line with the shaft and engine is the aim of this process. Continue reading “The Strut, Shaft, and Shaft Log”