I redid the gaskets on an I-4 (basically an H farmall engine). New gaskets, don't remember the supplier, might have been YT(they may all come from the same place anyway).The water jacket soon started leaking. I searched and found several people have had this trouble. The advice was not clean enough, pitted, warped, etc,etc! Welp, I'm thinking the gasket material is JUNK.i took it apart, gasket very well stuck to both surfaces, gasket was all mushy. Had the same trouble on a 400 thermostat housing. Made my own gasket out of different material no more leak. Anyone else having this issue?