I have a 1964 250 that I just pulled from a friends truck and was hoping to use it. I just ran a compression test on it and here is the results.
#1 85
#2 85
#3 85
#4 60...w/oil 75
#5 82
#6 82
I was told if you needed to put oil in the cylinder and it reads a higher number then it is a good indication that you have bad rings in that cylinder. All the other cylinders read about the same. Am I looking at a new ring job, or could it be more? I was just turning the engine over with a battery on the engine stand...so that might be why the other reading are lower than 90.
