I have always masked off the interior of any engine tin (valve/timing covers,oil pans, intakes etc) I have bead blasted. Now I find myself needing to clean up the inside/outside of a Chevy II oilpan (rusty) and I am a little wary. I always use an air hose to blow off the grit followed by lacquer thinner wipe down with a clean rag but I don't know. Would I be better off having this "hot tanked" instead?
yes but a hot tank will not take all the rust off. How bad is the rust wire brush asmuch as possible. if the pan has any baffles i wouldnt blas*** you can mask around them but its really hard to get the **** out and in time with oil and vibration it willfall out and go through motor
Maybe my "bargain" pan wasn't. LOL. Maybe better off with a muriatic acid/water bath? It's the little "nooks and crannies" around the baffle that has me worried the most. How about paint (glyptol?) to seal it after bead blasting?
We soda blast them at work which will get some rust off. If it needs to be cleaner, you could use some sort of rust dissolving bath like "evaporust", but I wouldn't blast any engine part unless you like short lived engines.
I don't worry about blasting engine parts that I can clean well after I'm done blasting. But a pan with baffles like that is going to trap some of the gl***...I'd look for a nicer one or just chemically clean it
Search electrolytic rust removal, there's lots of info here on the HAMB and elsewhere. All you need is washing soda, water, a bucket, something to use as a ground electrode, and a battery charger. It'll remove the rust without removing sound metal.
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