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CNKS
06-10-2004 19:19:58
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Re: PHOSPHORIC ACID in reply to AWC, 06-10-2004 13:25:50
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If you use the Picklex 20 I mention in the above post, I don't think you have to worry about gaskets. HOWEVER, when I use the product, the water pump, governor, and other accessories etc, are off the engine because I want to clean/paint them separately. There are no exposed engine seals on the IH tractors I have worked on, but you don't want it in contact with any rubber-type material. I usually install new gaskets for the oil pan, valve cover, etc after I have cleaned everything. I do leave the head and head gasket installed when I'm doing the prep. If you use the metalprep Rusty mentioned (At least what I call metalprep), you have to wash it off and prime immediately. All phosphoric acid products are not the same. If you are using an automotive type product, do what the label says as to use and priming. I, personally, would not use the hardware store version of phosphoric acid for fear I would mess something up, either the engine or the paint. Again, only my opinion, presented without proof.
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