Well, I just successfully installed helicoils in both the exhaust mounting holes for #1 cylinder with the engine in place. I cut a couple of pieces of 2X2 wood and drilled them for the drill bit and for the tap. placing them flat against the exhaust port, they worked as a drill guide and a tap guide. Of course, I had to use a right angle drill chuck attachment. I just can't imagine trying to do a good job without some sort of drill guide. Mike '85 GL Westy (and others) |
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