I'm helping a friend of mine. She has a 5-bar large gate she asked me to hang and I have concreted-in a big round post (about 8 inches diameter) to about 3 feet down. I packed the hole (about 18 inches dia) with big stones at the bottom and concreted in with 1 part cement to 2 parts sand/gravel (two wheelbarrows full) to about 18 inches deep. Left overnight to set then packed soil on the top.
I hung the gate next day. Top hanger was one you drill a hole and tighten a nut to pull it through. No problem. Bottom one was a hammer-in job. Friend insisted it was just hammered in. I wanted to drill a hole to make it easier (thing is about 1 inch square, 8 inches long with a pointed end). To make matters worse, post had a knot right where I wanted to put the hanger. So I drilled it a bit. Needless to say, I couldn't get the hanger hammered in far enough AND the hammering loosened the post. :-(
My question is, with that type of hanger, I think a hole should have been drilled to make it easier to bang in and reduce the chance of loosening the post. In fact it looks like it should have been pressed in with a huge vice. Am I right or wrong? What is "normal" ?
Now that the post is loosened, the gate is dropping and needs lifted at the "open" end. If I strain the post at the top with wire fixed to a huge concrete boulder buried down-hill (to make a cantilever) would it help?
Should I rip it up and start again (as someone else she knows has suggested)?
Thanks for any advice. :)