Does anyone know of a place in NJ that does vibratory tumbling for manifolds like in this video? Thanks,
https://www.youtube.com/watch?v=27A-iYhOIcQ
https://www.youtube.com/watch?v=27A-iYhOIcQ
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WOW! I can't help ya Tim with a suggestion, but THAT is how you clean-up a chunk of cast aluminum. These older manifolds, and even the '50s and '60s GM-type manifolds and other aluminum castings had a natural, semi-gloss finish.... a 'patina' if you will....that is absolutely ruined if you bead blast those pieces. This final result via that ceramic tumbling process is something I have never seen before, bit it certainly seems to leave the pieces with a wonderful, almost 'as-new' finish. And the price is right! DD
Google deburring shops - They deburr castings and such with these type media machines. More common than most people realize. We used to use one at work and yes they really do a nice job.
Pat
Tim look hard. As good as that video looks there are better media’s that will give a shinyer finish. I have done a bunch including some v8/60 heads. Some turn out better than others. Plug all threaded or small holes. Some media’s are difficult to get out.
Precision finishing is in Quakertown PA, that's not too terribly far from NJ. I buy my supplies from them, they handle just about every type of media and process, plus they do job shop finishing, so they should be able to tell you the name of a shop near you that uses their products.
https://www.precisionfinishinginc.com/
Ever since before the war, vibratory tumblers have been used to clean small parts. The media used is determined by what is being cleaned. Probably the most common use is cleaning cartridge cases for reloading. I once modified a case cleaner by attaching a much larger box to clean some special 2 ft. long special bolts. It could be done to clean manifolds.
On similar note, we used to use a paint shaker to open up the interior of intake manifolds by filling them with steel shot, put appropriate block off plates on and shake away. They had to bolted to the shaker very well. It takes a good stout shaker that can produce around 80 G's to make good time.
They do look good, Tony. What did you use?