Quote:
Originally Posted by Dukedesmo
But does not the shaft end, exposed inside the casting with the oil hole above it (as per the pic), whilst the 2 'O' rings are in the thick portion of casting on the outside of this hole?
Meaning that inside the hole the pushrod is exposed at the end of the shaft and the oil pools around the rod whilst the shaft rotates and the rod moves in and out when operated.
Also the shaft is narrowed along much of it's length (ends are obviously a good fit in the casting at the slave end and the bearings at the clutch end) so that there is a good gap between rod and shaft and so the rotation of the shaft, therefore the small pool of oil serves as a 'feed' to run into the shaft, up to the oil seal at the clutch end and so supplying the inner bearing with oil?
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I think your right, the O rings seal in the case not the bore of the not bore of the shaft as I had thought. There is also a radial hole in the shaft on the clutch end to allow the oil to escape, possibly the centrifugal force of oil escaping from this hole, induces flow from the other end.