That's an admirable intention. However, if the drains have been blocked already then there is a better than even chance that the plastic tub the motor sits in is already full of water. Even if that has drained away the insulation will be soaked. So your motor will still be sitting in a wet environment and getting more corroded by the day until eventually it'll cry enough.
You have a few options really:
Leave it where it is and keep your fingers crossed.
Relocate it to the boot before it dies
Take it out, check it and put it back with clean dry insulation, and some drain holes drilled in the bottom of the casing.
There is likely to be water still sneaking into the motor tub even if the drains are clear.