Home › Forum › Ask A Member › QD15 gear housing teardown! (Update) › Reply To: QD15 gear housing teardown! (Update)
OK, well my first question is, do you already have the gearcase apart? If not, I would replace the upper seal, reinstall the driveshaft, then pressure test to see if in fact there are more leaks and where they are…. All the new seals and orings in the world are not going to repair a grooved shaft, porous/cracked casting.
I am frustrated when folks are encouraged to pull these clam shell gearcases apart and reseal them. Sealing one of these units up properly (zero leaks) is no easy task! So, I would ask how bad was the gear lube that was in the gearcase? Just milky? Or, was there actually raw water inside. It’s probably not worth pulling this thing all apart for a minor leak (milky gear lube). Chances are good you will find more problems or make things worse by going inside and trying to reseal it. Perhaps the upper seal is all that was wrong…
As for Ben’s video on youtube, that method will only work on the 9.9/15hp gearcases where the shift rod can be removed without gearcase disassembly, there is no way of removing your shift rod without complete disassembly. The only thing I would comment about Ben’s method is that the shift rod bushing should probably be replaced after gouging it up putting threads in it.