I have done at least 30 engines before cleaning out the old and putting in new. It was still working fine though.

Until it becomes PH balanced from the acidic oil. At that point you can put it in a pan, light it on fire and burn off the castor/petroleum and keep using it.

MM

      Hello All:

       I must be using the incorrect antifreeze as after 7 hours. there is no change in the grunge on and in the engine.  I am using the least expensive Wall Mart brand that is to be mixed with water.  I think that it is the old style stuff as a 50/50 mix will produce a freezing point of -37 deg F.  In the past, I have used the crock pot method to make my engines look like the day they were manufactured.  I have no idea as to why this time I am having a problem.  It looks and feels like dried oil and not rust as it is soft and can be scraped with a fingernail.

    Suggestions?

                                                                                                                    Tia,

                                                                                                                    Frank McCune

if you have used it with a lot of really gunked up motors, then it needs to be changed, one thing you will see when it gets contaminated with oil burned gunk is it wii stain the motors you put in, and work less effectively

Randy

      Hi Dane:

      How may one determine what type of antifreeze one is using?  I searched the container to find the ingredients to no avail.  I went by the lowest price as the new and improved products cost more.

      In any case, after 24 more hours in the crock pot with the new solution, there has been no change in the crud on the engines.

      As we speak, I am boiling the engines in a solution of dishwasher detergent and water.  I can not disassemble the engines until I get some of this crud removed.  At this time, the cylinders are glued to the cases preventing removal!  Yes, I heated the engines to about 300 deg. F but still was unable to move the cylinders. Quo vadis?

                                                                                                                                    Thanks for the reply,

                                                                                                                                    Frank McCune       

I'm not sure Frank. There has to be a main chemical ingredient listed for poison control or the SDS sheet. Maybe post a pic, or the actual name of the product and i could look it up

I generally scrub the engines after crockpotting them with dishwashing liquid and a toothbrush to finish the job. Joy seems to do a good job as that is what my wife uses. It will remove any castor grunge left on the engine and prepares it for drying with a heat gun. I then put a light film of Rislone on all surfaces of steel, brass, and iron.

If you rinse the parts in really hot water they will tend to start the drying process pretty quick. Blot with a towel and heat with the heat gun to finish drying. If you have painted parts it will remove the paint most times and will need to be repainted like McCoy Red Heads. Never put and Orwick in the crockpot if you want the original paint on it.