When I did my timing belt over the weekend I got sloppy and now I have a broken timing belt cover. The one behind the crank pulley. So there's a hole between the fan pulley bracket and the crank pulley that's about 1/2 in x 2 in. Is that something to be concerned about that I'd have to get a replacement soon? Or can I wait a few months before climbing back in the engine bay to change it out?