Phosphoric acid is the clue
Coca~Cola has some phosphoric acid content which is the same thing they use at engine rebuilding houses to dip engine blocks into. Ever wonder how they manage to get all of those oil and water galleries cleaned out so well? Phosphoric acid dip and a follow-up dip in a hot caustic soda bath.
Here are some interesting web pages on other uses for Coca~Cola.
http://members.tripod.com/~Barefoot_Lass/cola.html
http://www.therisenrealm.com/uses_of_cocacola.html
http://en.wikipedia.org/wiki/Coca_Cola
And here is Coke's webpage: http://www.coca-colabottling.co.id/e...ex.php?act=faq
They are not amused about the rumors and urban legends.
Freeing a Stuck Straight 8
Demon (our club pres.) recommends this:
Try concentrated high-grade vinegar to free your stuck pistons. Fill the cylinders and let it sit for a week. Keep 'em topped off. Mystery oil works, if it's not rusted. A way to drive out a stuck piston without marring the cylinders is to put a wood dowel over it, as close to the cylinder diameter as you can and tap it with a hammer. Another thing you can do if the head gaskets are intact, fill it with vinegar, WD-40, mystery oil, seal the valves and thread in a compression fitting with a regulator and apply a couple pounds of pressure (5-15 psi). Other than that, good luck!
Snake-Man
Pinstriper/Custom Painter/Bodyman
"Devil's Pit" Car Club
Thief River Falls, MN