again, the 1/4 pipe thread plugs have a built up mud seal that I poked through to
drain the block. Is that still casting leftovers?I've run tri sodium phosphate solutions through that cooling system at least four times, every time I drain the
engine the drains are plugged??I use new ethylene glcol/water 50/50 with anticorrosion additive everytime I change coolant.
Anybody got an idea where that mud comes from?? Do all aluminum engines get this same crap? thanks,Armand
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