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

[lmcchesney]

This is Ray's method:
Here is a couple of things you can try. It really depends upon the definition of "bad" injectors. IF YOU HAVE: (1) and injector whose pin or pintle moves well, but the injector appears to be blocked up internally or...(2) you have noticed minor rust bleeding around the pintel of an injector that has not been in use for a while, and that pintle still moves freely, try these things.

Attache a pressureized fuel hose in reverse...or over the injector end. Clamp it well. Put on you safety glasses. Trigger the injector repeatedly. It back-flushes the injector.

One problem noted above is the growth of light rust from water vapor or water in the fuel. The pintels are hardened. So ..as long as rust does not pit the seat ,wherin the injector leaks....you can clean that rust out. Here's how.

Get a pressure vessel...like an old freon tank. Clean it out well, by takinng the valve off and rinsing it. You will fill it halfway with a mixture of muratic acid andclean water. Screw the valve back on tight. Put on your safety glasses and make sure you have a garden hose nearby just in case. Put only about 15-20 psi on the tank of air pressure. Close the valve. Connect fuel line....connect injector. Turn the tank upside down, so you only get liquid under pressure. Trigger the injector...open the valve. DO NOT BREATH ANY ACID AIR MIX. USE A MASK. Spray the injectors into a glass of water.

Muratic acid literally dissolves ALL rust...down to bare clean metal. It will clean EVERYTHING out of the injector. Then go over it with chemtool. Then WD-40. Ray