I got a engine hoist from a friend awhile back with a brand new pump for it well the pump wasnt bolted on yet so today I took the old pump off which had the rubber grommet gone from it and tried to put the new pump in. Turns out the new pump is way to big so is there a way where I can get some hydrallic fluid and put it in the old pump and replace the grommet? or does this mean I'll probably have to get another pump for my hoist. Thanks for all posts.

Oh and also where is the lower motor mount located on the 2.2 ohv motor Im about to pull it when I get hoist up and moving.