(15-04-2023, 07:27 AM)Steve kay Wrote: New ball was seated by tapping with a brass drift, which may have made the improvement from no indicated psi to about 4 or 5. Vane checks were about springs and seating. Now, do we have unanimity on tops, bottoms, sharp and flats? In other words, what should I see whilst lying under the machine, peering up into the oil pump?
Take dear lady wife Saturday morning cup of tea in bed then use modern research mechanisms called the iPad to investigate sharps and flats. Not orchestral tuning, but vanes. Universal agreement that flat bottoms to each vane for best contact with the oil pump cover.
You should see the nice flat base of the vanes ensuring minimal clearance between the base and the rotating vanes.
Suitable stolen photo
IMG_0039.jpeg (Size: 41.13 KB / Downloads: 164)
Charles