Muriatic Acid to clean engine cooling system

Posted by Roberto Isola On 2016/7/16 14:07:11

Hello Folks,
My 356 Engine on my 1940 180 is running hot and without removing the engine out of the car I was planning on removing the Starter, Water pump, oil filter canister, maybe the distributor to help in removing the freeze plugs. The Radiator and water pump have been rebuilt. Then I will flush it with water and then add Diluted Muriatic Acid, followed with water and baking soda to neutralize the acid, Then re-flush the system with lots of water to clean out the system.
After all done, put back together to see how the engine performs temperature wise.
I have never done this and was wondering if anyone out there has. Apparently Muriatic Acid is nasty stuff.

Thank you Roberto