Tapping Noise after timing belt..
Almost done with the timing belt change, I have everything bolted back up and all that really remains is to hook up the radiator lines to the new radiator, ran out of day light last night. I was able to start her successfully, but with one concern. There is a random, not consistent, loud tapping noise. It's not the same noise that you hear from lifters. I haven't let the engine run for more than about 20 seconds as I was worried about the noise. But it starts and revs up to about 2k and doesn't feel like it's missing or anything, actually feels like it's running very smooth for it's normal warm up.
I have a feeling it's the timing cover. I did some googling of my issue and found an instance where somebody (totally different car) also had a tapping noise. And it ended up that the timing cover was lose. Well, when I was taking the timing cover off, I found that one of the bolts had the head twisted off of it at some point in time on the upper cover. And on the bottom cover, the very bottom bolt under the crank pulley, the part of the engine that the cover bolts into had cracked off and came up with the timing cover. It was pretty dirty, so I assumed it had been broken for some time. I'm at the point now, where I feel like I should go and pick up a longer bolt to use in that location and try to figure out how to get the broken one out of it's spot. I will try to get a video of the noise tonight when I get home.
Does anybody have any ideas, or does it sound like I'm on the right track? I just don't want to hurt anything.