Have 120 HP Johnson out board,,been sitting for about a year now, just got it running but when i tried to turn the steering wheel back and forth the motor wont budge, tried shooting grease in the fittings, pb blaster on the rod, block of wood and hammer, was able to knock it one way then back but still cant turn the wheel, infact i may have stripped or broken the steering gear box as it now has to dead spots where it kinda spins/clicks the catches again,, any ideas on how to free up the steering ? is the steering box repairable ?