Re: 9.9/15 Seal Orientation

Home Forum Ask A Member 9.9/15 Seal Orientation Re: 9.9/15 Seal Orientation


fleetwin

US Member - 2 Years
Replies: 4737
Topics: 46
#74639

OK, seems to be the same instructions as the later models. Although they could have made the instructions a little less confusing, perhaps added a diagram…But, looks like the seal lips face in towards each other on these engines. And yes, this set up seems as though it should have helped with seized driveshaft splines, but problems still continued on the 6-8hp models. The beauty of the 6-8hp models is that the gearcase pops on and off so easily (no shift rod connector), no excuse not to pull that gearcase down every year (for salt water users) to clean and relube the splines…
In the example of that 1985 6hp seal I pictured, that powerhead must have been one of the first assembled in the Calhoun plant, it was a disaster. Looks like the crankcase seal lip was damaged during installation on the line, the gearcase had never been off before. But, in this case, the lower driveshaft seal acted like the lower crankcase seal and saved the powerhead from water damage….
Thanks for posting the instructions!