Re: pressure test
you can pressure test...thats one option...a little riggin up some stuff from Harbor Freight and you can build one.
you can drain the fluids, refill with new gear oil, mount the upper on the lower and hook it up and run it in the lake for 3 or 4 minutes, pull her right back out and check things...thats an option
the best way, and this leaves nothing to chance, is buy an upper unit seal kit - about 40 bucks on Ebay - and reseal that bugger...you are only talking about punching out 4 oil seals that are real easy to get to and you also get to take a good hard look at the impeller in that upper...which is the life blood of your whole boat...ild be more worried about the impeller than the seals
