Block Water Passages Cleaning

[Rick Iverson]

Gents;

Art Smith prepared, an as usual, elegant treatise on oiling and cooling of the Kent block. MAGNIFICENT in every respect, if I may say.

One of the major points he emphasized was the THOROUGH cleaning of the water jackets. My research reveals everything from muriatic acid to 50% Dawn dish soap, 50% diesel fuel, and a pinch of cayenne pepper (eff’in drag racers).

What say you?

[Charles Warner]

Muriatic acid will definitely do the trick. Be careful and wear protective equipment - i.e. rubber gloves, eye protection and breathing apparatus (not just a funky mask but a filtered unit).

[Rick Kirchner]

molasses. The block will come out looking like it just came from the foundry. black costco bin, half gallon of molasses, fill the rest with water, dunk the block and come back in a week or two

[Chuck301]

Draino Crystals. Easy waste removal

[Joefisherff]

I used this with good success, same considerations where protective gear, block off as many passages as possible, fill, slosh around, wait a bit and rinse thoroughly.

[john f]

Google "electrolytic rust removal". It works very well.

john f