12-12-2021, 01:32 AM
(This post was last modified: 12-12-2021, 01:50 AM by Bob Culver.)
Another project. Now I will have to live to 110.
Many will be astonished, but at revs the greatest bearing load is upward at the end of the exh stroke when there is no pressure to counter the inertia of the piston assembly. Even on the firing stroke the net force can be upward. Your car is propelled by part or totally camcelling the inertia force!
Relating the load on the oil film to efective oil/air feed pressure in the be would be no mean exercise.
Becasue road cars spend a lot of time at full throttle and modest rpm the top cap usually wears most and fatigues first.
Many will be astonished, but at revs the greatest bearing load is upward at the end of the exh stroke when there is no pressure to counter the inertia of the piston assembly. Even on the firing stroke the net force can be upward. Your car is propelled by part or totally camcelling the inertia force!
Relating the load on the oil film to efective oil/air feed pressure in the be would be no mean exercise.
Becasue road cars spend a lot of time at full throttle and modest rpm the top cap usually wears most and fatigues first.