Good Day: The TM says install till it bottoms on the toothed flywheel with the tip usually between 2 teeth and back out till you get 2VAC. Uh, we found if you bottom out turn it back about 4 turns, then using dead crank as you screw it in slowly obtain your AC and snug the locknut and don't Baby Huey it. Now connect after rechecking and you are about good to go. These guys also pick up metal shavings over time from starter and flywheel and eventually fail from that and garbage in the bellhousing. There is no repair we could figure out. The one on my Crossfire also just suddenly stopped working in the middle of traffic so they do fail for no reasons with time. Wish you luck.