Is it possible that the starter lever that contacts the switch is in backwards? 1/4" seems like a lot unless something is interfering with the linkage when you push down. With my pedal in the up position I have approx 1/2" clearance between the lever and the switch button so your pedal should move at least that far to engage. Is this a new starter? If you could post a picture that may help. http://chevy.oldcarmanualproject.com/shop/1948_51truck/51ctsm1218.htm


Ed