70/71/72 402

Greg Reimer

Well Known Member
Wonder what would happen if a person put an original, assembled core motor on an engine stand, blocked off the water pump openings at the front of the block, removed the thermostat housing and the stat and slowly poured in about a gallon of un cut swimming pool acid, carefully adding water until you could see it in the bottom of the thermostat passage and left it for a day or two, then very carefully draining it into a large bucket for disposal. It would be necessary to flush the engine out with a hose before disassembly, but I wonder what all would come out and how clean would it be? Just be careful handling everything afterward. Probably would sizzle and bubble a bit until the chemical reaction was complete. Might smell a bit in the process.
 

wristpin

Well Known Member
Wonder what would happen if a person put an original, assembled core motor on an engine stand, blocked off the water pump openings at the front of the block, removed the thermostat housing and the stat and slowly poured in about a gallon of un cut swimming pool acid, carefully adding water until you could see it in the bottom of the thermostat passage and left it for a day or two, then very carefully draining it into a large bucket for disposal. It would be necessary to flush the engine out with a hose before disassembly, but I wonder what all would come out and how clean would it be? Just be careful handling everything afterward. Probably would sizzle and bubble a bit until the chemical reaction was complete. Might smell a bit in the process.
Muriatic acid. Youd gett better results having it recirculating at a diluted ration.
 
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