Slant Six overheating
Show my 1964 dodge dart Slant Six overheated today. I only drove it about 7 miles in 50° weather, and it buried the needle. I open the radiator cap when it’s cold, and I can see that cooling is flowing through when it’s running. You can let it sit there and idle for an hour and the needle will only go halfway, but the second you start driving it starts to bury the needle to H. The coolant is relatively new, however there is some brown showing. Could it be sludge inside the block? What is the best way to remove it? Removing the freeze plugs?
Show my 1964 dodge dart Slant Six overheated today. I only drove it about 7 miles in 50° weather, and it buried the needle. I open the radiator cap when it’s cold, and I can see that cooling is flowing through when it’s running. You can let it sit there and idle for an hour and the needle will only go halfway, but the second you start driving it starts to bury the needle to H. The coolant is relatively new, however there is some brown showing. Could it be sludge inside the block? What is the best way to remove it? Removing the freeze plugs?
