I use Robart pin hinges on all my planes and have never had a failure. I align and pre-drill the pin holes then try the hinges without any glue to make sure there is no binding. Then, I glue them with 5 minute epoxy. To prevent the glue from getting into the hinge joint, I use vaseline. I make sure the hing joint gets a good coating of vaseline. The vaseline also acts as a lubricant but is not messy like an oil. This technique has worked well on about a dozen kits I have made.