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[Winky]

If those are engine castings that have been soaked in oil, you have picked probably one of the hardest things to repair as a first project. Best to put that off for awhile. Castings in general are not the nicest alloys of aluminum, and the oil will cook out of the pores and mess you up even more. Go to a junkyard and grab some other castings to practice on before you light up on something not easy to replace. But until you have gone through at least a tank or two of argon, I'd stick to clean new material.

Very astute ... that is exactly why I'm honing my skills before attempting. As far as going to a wrecking yard for other casings HEHEHE it's a 1969 T120R Bonneville Triumph 650 ... there are none left in junk yards ... the repairs needed are tiny cracks from which there are small leaks. I will bake them out first. I could probably fix with epoxy but I hate going there ... JB Weld works ... but it's a band aid; don't like doing that ... nor to I to use Heli-coils and such things ... just doesn't seem right.