my 1987 non turbo problems

[xs87supra]

There was engine knocking..some guy told me the a connecting rod was broken..but i dunno cuz it never started up after a couple times when i needed to move it..i live in socal so i was driving from school back home, about 35 miles, it broke down about 25 miles in and i was able to get her running but it broke down again about 3 miles down the freeway and i didnt want to damage the engine even more..when it first broke down the coolant was just goin crazy and i ended up havin to fill it up with water from a gas station down the street..i let 'er cool then i started up on the freeway and i started hearing the knocking again and i had to push it off of the freeway offramp..so mainly jus knocking in the engine and coolant expulsion..i think the entire time my temp gauge was at midlevel