Quote:
Originally Posted by millhaus
Great thanks for the good news. But do you know why the "window" in the casting is so jagged with bright edges? It looks like something broke off. Should I try to smooth this out? I don't want any loose casting fragments drifting through the case after I rebuild it.
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It's jagged due to the aluminum forcing it's way into the area. Ideally the steel tube/aluminum would have a crisp perimeter. The aluminum is too thin, since it's not supposed to be there. As a result it breaks up forming the jagged edge.
If you are worried about it, apply epoxy over the whole area to prevent anything from falling off.