Cleaning/rebuilding injectors Options

[lmcchesney]

Does anyone have a proven method of cleaning injectors. What is involved in the rebuilding of injectors. Ray Green gave me a method of cleaning involvine muric acid and injector cleaner and penatrating oil. Did that last month. Now the injectors will not pulse.
Here we go again. The persuit of truth.
L. McChesney

[SLITS]

Spent 25 years in water treatment. Rating of acids for cleaning and metal removal:

Sulfric - eats everything
Hydrochloric - eats everthing a little slower (not much)
Phosphoric - a little more gentle, slow on metals
Sulfamic (dry) least agressive of all, but slow

I won't go into Flouric or Nitric acids - both highly dangerous.

Acids were used to remove mineral deposits. Fats and oils are unaffected by acids. Basic materials will remove oils, fats, etc. If you use Sodim Hydroxide (NaOH), it will cut the oils, fats almost instantly. The old solutions they used to clean engines, carbs, etc., were not acids, they were basic. NaOH will also eat metal. Has a lot to do with the relative activity of the radical.

It is my belief that the cleaning solutions used on injectors are neutral/basic in nature with the additions of dispersants and solubilizers. I have not investigated this.

I know that, personally, I would not use an acid to clean oils and fats. Drain cleaners are NaOH or similiar materials). Radiator cleaners (removal of scale and rust) were acidic and I believe if they disclosed what was used, it would be sulfamic acid.

My main concern in using HCl were the metal parts in the injector (pintle, filter screen, electrical contacts).

OH - BTW - I am not a chemist and have been out of water treatment for about 10 years.

If you need a couple of 2.0 injectors, I may have them in my junk uh stock pile.