So I purchased my first boat that re-powered it with the 7.3 idi diesel. Then the starter went out on it. Being new to the boating community, I went to Autozone(AZ) and told them it was a 7.3 idi, pre-Powerstroke motor. I gave them a year and model that the 7.3 would be in. I told them it was for my boat. So I gave them my core and I purchased the new one. Unaware of the HUGE oversight that I just made. I went to install the starter and it just didn't match up well to the flywheel. I brought it back and swapped it for another style. Installed that one. Perfect match. I was getting great cranking power but it just wouldn't start. So for almost 3 days I would go to the marina after work and try to figure out why it would start. When I finally decided to use ether, I removed my air filter and sprayed some in the intake. While cranking, I saw the ether being blown away rather than sucking. That's when I realized that the starter was craking the wrong direction. So now that I realized what had happened, I tried getting my core back from AZ but I missed it by one day. They had already shipped the core one day earlier. Many attempts were made to get it back including calling the regional office. So far I am waiting for them to give me an update. So my question is this since I was cranking my motor the wrong direction, did I do any harmful damage to my internals? I mean even with the wrong starter spinning in the wrong direction I was still getting fuel coming from the lift pump. Just no fuel pressure from the injection pump since it was cranking in the wrong direction. Thanks in advance for any help.