Ultrasonic works well on some stuff others not. I go 60C temp and like I said different solutions. Main reason I like it it gets all the oil passages clean without taking the shaft bushings out. Wont really do much on corrosion. Might have to walnut blast them if it is severe then you have to watch if they are then porous only real way to check that is a flow bench.
Hey Ray, I am thinking of buying a Car trailer near you. Is there a way you could pick it up if I sent you the money for it? It is a ways away but not too bad... I would pick it up at your place after Carlisle... Just a thought.. It is here Appalachian Trailers Utility, Dump, Gooseneck, Equipment, & Car Trailers