Thanks for all the replys ..
I double checked..I did have he correct pin in the correct place. This is a newer gen 3 gun. The top locking block pin does not have a groove. It is shouldered for lack of a better term. The ends that sit in the frame are larger than the section in the middle. Today I took it apart again, cleaned all traces of oil from the pin and frame holes. Took it to the range and shot 4 mags. The pin already started to work its way out again. The slide release spring sits tight against the pin, it is not bent.
I tried to call Glock customer service today but it was too late in the day to catch them; I will try again tomorrow. I'll let you all know what they say.
Vic
Almost forgot..I cleaned the heck out of the G17 open gun. Lots of small brass bits came out! It was pretty grimy. I am guilty of not cleaning it in a very long time. I did order a replacement spring just for the heck of it. I put three mags thru it today and it ran fine.