wiggy
Well-known member
Last winter I removd short section of plumbimg on cooling system for raw water cooled 1GM10. Inside tube Irecon diameter was down by 40% due to limescale looking stuff (very granular), any ideas on how to clean out engine assumig it is as bad inside? Would white vinegar do it if gut through and left once engine was up to temp (works wonders on taps at home)?