Alright so I'm rebuilding the engine on a 77 diesel. I hadnt worked on it in quite a while because I was busy with school and what not. The other day I pulled the dipstick on it to make sure just oil was in it, and the oil was a little thin. So, I drained the oil, and when it came out probably 2 quarts of antifreeze came with it. I had the head and block magnafluxed by a machine shop, and that same machine shop installed the pistions, sleeves, rings, crank, and rods, so I know I didnt do any of that wrong, and I know there isnt any cracks anywhere. When I put the head on, it was probably around 20 degrees outside, and about 40 where I was working on it, so maybe since it is warmer now, I should retorque the head of something. I dont know what to do. I've stuck to much money into this thing.