[CWPASADENA]

I have good success with RUST 911.


This is a concentrated solution that you mix with water.


If the car is still together and running, drain the cooling system and fill with RUST 911 solution. Leave in the engine for a few days . You can even drive the car with the stuff in the cooling system.


When it turns black, it quit working. Drain and flush out all the old crap refill with more Rust 911 solution and repeat. it may take several applications to remove the rust.


This will also dissolve any rust that may have gotten trapped in the radiator.


If you have the head off the engine, block off the water inlet on the side of the block and fill to the top of the block deck. Let sit for several days, drain, flush and repeat process. You can also poke around with a speedo cable as stated above which will help loosen the stuff but you have to be able to clean out the rust.






I have cleaned several rusted up engines without having to take them all apart.


You can buy Rust 911 on line. You will need a gallon of concentrate. This stuff is good to de-rust other stuff.


My experience,


Chris W.