Having trouble torquing down the connecting rods after installing rod bearings. After torquing down pistons 1 & 2, I'm finding the crank impossible to spin, which is required to torque the other rods down. I've broken 2 breaker bars attempting its rotation. Once both con rod pistons are loosened up then she'll spin. Anyone been here before? 30 yrs of experience and I've never seen this one. Thanks.