Use a foam dense enough to be able to take full vacuum. Using a
refrigerator pump turn the pump on and leave it on.
If you don't leak gobs of air into it it will run forever that way. If you
run a lot of wet air into it it will soon turn the original oil acid and
bye-bye windings. Let it run full bore wet air into itself and guaranteed
it will be dead in a much shorter time than 48 hours even brand new. You
will only leak as much oil out of it in proportion to the size of the leak.
No air leak no oil loss.
Rick
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