So the motor i'm rebuilding has some corrosion in the water jacket. the machine shop told me that hot tanking the motor will not improve this issue. does anyone else have any solutions? I had this preliminary idea that maybe i would fit a very fine screen over the intake port on the radiator and just run that screen for a while after i get the motor back together, cleaning it every so often. i don't think that will accomplish much tho. maybe i should just try doing a very thorough flush of the cooling system after I get the truck up and running again. any ideas?