Hard to turn engine over A ford 1929

[gimlegule]

If I start the car in 2nd gear rolling down a hill instead od using the starter it will start imediatly, If i use the starter it harly turns and the batterycable get hot and start to smoke, I changed the starter and the battery and both battery cables and still it hardly turns over and smoke start to come from starter if i turn let it go to loong, but it still works but slovely just as the other starter that was newly overhauld and used to work perfekt weeks ago. Can it be a exchous valve that doesnt open, so it create to much compression ? its hard to hand crank when the pictons comes up .I thought aboute the bearing on axcle holding the picton rod that they might been to tight, but they are old and not touched, so probely loose instead of tight. any inputs everything have been fine until reasently it got harder and harder to start with the starter motor until almost impossible