Wallis Crankshaft Question
I am working on the engine of a 1929 Wallis 20-30 and just picked up the reground crankshaft from a local machine shop. The machinist said ” Oh you might need this, it came out of the flywheel end of the crankshaft” . He handed me a steel dowel pin 0. 235 inch diameter and about 1 1/2 inches long. Sure enough it slipped easily into a 1/4 inch hole in the end of the crankshaft that is about three inches deep and intersects with another .128 inch diameter cross hole leading to the rear main bearing. See small hole on the right in the photo.
So, is this intended to lubricate the pilot bearing and should the dowel pin be there to restrict the amount of flow? In my case the pilot bearing is shielded on both sides so that wouldn’t do much good but I could remove one of the shields. I cannot find this dowel pin in the parts manual.
Has anyone seen this on other Wallis engines, any thoughts?
Also what is a reasonable torque value for the rod bolts? Basic torque tables suggest that for 5/8 x 18, 102 ft. lbs for Grade 5 and 144 ft.lbs for Grade 8. Or do I torque it to about 100 ft. lbs then tighten further till the split pin hole lines up?
Many thanks, Alan Painter, Brownsville, Oregon.