I am starting up my brothers elcamino after sitting for many years. I primed the motor and can even turn over the motor by hand using a breaker bar and socket on the crank bolt. I am pretty sure it is not seized up or i would not have been able to move it by hand. When i turn the key the motor moves maybe a 1/10 of a turn before stopping. If i try again i get the same result. 1/10 turn every turn of the key. I gave up for the day as i had to leave for work but when i disconnected the battery cables i could feel both positive and negative battery cables were warm. Right now i am thinking posssible starter malfunction or maybe corrosion on the cables that is causing my motor not to turn over? Asking here just in case i am missing something or something i have not thought of yet.