Thread: pinion angle

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Joe, below is a picture of the tool I use, and probably most people I know who do this sort of thing, which is just fine for measuring the pinion angle from the yoke face (this would be what I interpret as what vertical meant). The way it works is that there is the zero degrees at the bottom when the bottom surface is level. The upright surface is exactly 90 degrees to that. So in placing the upright against the yoke the swinging pointer will settle on the number of degrees off of 0, or otherwise stated, the amount of inclination. The only other thing to be mindful of is which side of 0 degrees to determine whether it is up or down angle. Needle toward the pumpkin is up angle, needle away is down.