no, there is a clutch that should slip, but don't count on it.
There are shear pins on the horizontal shaft that coupler the tilt motor to the worm gear.
is the motor spinning at high rpm but no lifting?
or is the motor locked...
if the former, here is how to access:
http://forums.iboats.com/showthread.php?t=390581
Motor runs at a higher RPM then before when it was all working well. It sounds normal when I am putting the drive down.
sounds like theclutch might be slipping
put the drive up halfway,
stand on the lower unit
should hold you