F fraso Joined Mar 3, 2009 Messages 222 Location Fort Erie, ON Sep 30, 2020 #1 I've done several citric acid flushes on older cast-iron engines and I've noticed that there is a white precipitate that settles out. Any idea what this white precipitate might be?
I've done several citric acid flushes on older cast-iron engines and I've noticed that there is a white precipitate that settles out. Any idea what this white precipitate might be?
Boomer Joined Sep 19, 2008 Messages 2,970 Location Pennsylvania Sep 30, 2020 #2 If you used hard water, you might be seeing calcium or magnesium citrate salts forming.
F fraso Thread starter Joined Mar 3, 2009 Messages 222 Location Fort Erie, ON Sep 30, 2020 #3 I would have used filtered water from my pond for the flush water. I was expecting that there were calcium and rust deposits in my engine as previous owners may have used tap water for coolant.
I would have used filtered water from my pond for the flush water. I was expecting that there were calcium and rust deposits in my engine as previous owners may have used tap water for coolant.