Sorry for the delay. I blew the motor up in my truck, so I had to put a new one in. I am just getting back to my tractor. It worked perfect! I used a 1/2" expansion bolt as that is what I had available. I had to beat it out. I polished the plunger portion as well as the internal channel. It is loose enough to push in and pull out by had without binding, but it will hold itself in without falling out. Now to get a new filter and oil. Thanks again. You saved the day.