Pony head cleaning?

[quote="juiceman"]In my latest basket case rescue, I had to do more work than usual to the pony motor. I took the recommendations of many, and went deep into the bowels and cleaned up the valves (nasty) lapped then after cleaning things and freeing them up. I’m a happier fella now that they move like they should. The heads were plugged up with crud. I had to drill out the lower passages and used a drill with MIG wire to roto rooter the daylights out of them. Air pressure, repeat flushing with solvent as well as Garlics fave, gasoline.
I’m not satisfied. Wondered what you folks recommend to clean them out better? I was thinking about either soaking in high acid vinegar ( supporting my apple farmer friends here) muriatic acid, radiator flush or possibly hydroflouric acid. Any recommendations? Thanks! JM[/quote]

Put it in your wife's dishwasher! White vinegar might give best results..or pressure wash it at the carwash..

Caterpillar sells a cooling system descaler. soak and pressure wash. Lime away is another option

From my Hazmat Training Days - (California Specialized Training Institute - Hazmat Specialist )


STAY AWAY FROM HYDROFLUORIC ACID!!!!

Nothing good comes from exposure -- can be life changing!

https://pubchem.ncbi.nlm.nih.gov/compound/hydrofluoric_acid#section=Top

Sorry Juiceman -- I don't mean to bust a bubble but I can't sit back and watch someone check the gas can the an oxy/acetylene torch!

cts

How about a hot tank? I keep seeing DIY instructions for making them, they all sound pretty simple and effective. Has anyone here tried one? I wish I would have made one when I started my project.

Hi juiceman,
Have you tried the old fasihion way no chemicals just water an heat, the last one i did up i put the head in a pot (no i did not use the one from the kitchen the one who needs tobe obayed got it form the second hand store) and boiled it for a few hours on a camp stove and got almost all of the gunk out, what did not come i was able to poke it out

Regards

Gee, save your time and energy and take it to your local rebuilder to hot tank it - it will come back spotless

Hot tanks with those good old chemicals for cleaning are outlawed here in California. Engine rebuilders use high pressure hot water cabinets. It's amazing how much mud and crud can accumulate in those heads and blocks.

Juice,

Lots of good recommendations here. One that has always intrigued me is electrolysis. Here's a link relating to that. Good luck. Thanks.

Bryan

http://fergusontractors.org/nfs/wp-content/uploads/technical-articles/Rust-Removal-with-a-Battery-Charger.pdf

Hot tanks with those good old chemicals for cleaning are outlawed here in California. Engine rebuilders use high pressure hot water cabinets. It's amazing how much mud and crud can accumulate in those heads and blocks.