Posted by Determined on December 18, 2019 at 08:11:09 from (216.130.212.201):
In Reply to: Stuck Piston Removal posted by super99 on December 17, 2019 at 17:24:53:
Might as well throw in my method in as well.
Oxalic acid (wood bleach)
You want something that can actually dissolve the corrosion that is preventing the engine from turning.
Oxalic acid was the active ingredient in the old school rad cleaner that actually worked.
It can be harsh on some metals but it sounds like you will not be reusing the pistons or liners.
Solution works best when heated.
I would fill the cylinders with it then if it has one plug in the block heater.
You could also use a heat gun, hair dryer etc to warm the block and solution.
Being that you already have oil in the cylinders I would blow out as much as I could then get some spray 9 or other soap into the cylinders to help the oil to lift so the acid can do its magic.
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