Mirt54,
You won't regret getting an electrolysis tank set up. One of the 3 tractors I'm working on right now is a 149. I "cooked" the lower grill casting for several hours using elctrolysis and it was easy to clean afterwards. Any paint that remains after a steel brushing can be sanded and painted over because it still has a good bond and there's no rust under the paint. If there is rust under the paint it will come off pretty easily. The elect. process attacks the rust with current and it will turn a dark color. I wash the part with a brush and degreaser after "cooking" and this takes care of most of the destroyed rust. Any remaining rust will require a steel brush or sandpaper. You'll get a feel for different types of parts after you use the tank for a while.
Good luck, Wayne
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