Hi everyone. Today I finished cleaning a used bellhousing that is new to me. Cleaned it in a parts sink. Spent a lot of time on it. There are two problems I hope you guys can comment on.
1. The aluminum is corroded in places. Perhaps galvanic corrosion. From the photos, can you say if it's serious? It would take some time but it seems it could be scraped away. If it remains, could it come off in the hot engine oil that is stored there? The last two photos posted below show before and after some scraping.
2. There is a black coating on the outside and inside of the bellhousing. I have no idea what it is. Using the parts cleaner on it turned some of it gooey. It could then be washed off. But some of it wasn't affected by the wash. It's still there. I can scrape that off too but there's a lot of it and scraping leaves a lot of debris behind. And regardless, all those nooks and crannies will prevent access in places.
Question: Are these issues something that must be addressed before the bellhousing can be used? Or am I giving this more concern than it deserves?
Thanks for your comments.