I have a 4-71 Detroit Diesel
with a twin disk clutch
. Then it is connected to a shaft with universal joints, and then this thrust bearing to a shaft through to the stern of the vessel.
has a 2.95:1 ratio, and the engine
tops out at ~1900 rpm
. The shaft tops out at 644 rpm
From there it goes through a standard packing seal.
I know nothing about this style of bearing, and the grease fitting. The fitting is almost impossible to get to. It's buried under the gen set. The universal joints show signs of recent greasing. The thrust bearing does not. The boat
was built in 1999. Is it possible that the thrust bearing was never greased?
I figured what the hell. A bearing is never damaged by too much grease, so I had some grease. On every other grease fittings that I'm used to when you add grease at the insert old grease squeezed out somewhere else. No grease comes out of this thrust bearing. At least none that I can find.