Any one help with a diagnosis-12-valve in truck with hood on (wrecked),engine turned over by hand fine three months ago. did not start because of lack of batteries. Now tried to turn over to install torque converter, and it won`t buge. removed inj. last nite and soaked the holes with marvel mystery oil, also removed oil pan , and everything looks good, no signs of water anywhere. could ther be enough rust in the cylinders to lock in down in that length of time? need some Quick help! 
