Joined Jul 2001
3K Posts | 1+
El Sobrante, Ca. 94803
With regard to the previous main bearing thread:
In a nutshell what I believe to be weak links:
1. Improper running clearance as a result of sloppy case bore
tolerance.
2. Axial crankshaft bore misalignment as a result of sloppy tolerance
control.
3. Using a single point, contra rotating, axial mount balance
assembly. Such an assembly induces a "Rocking Couple" which
causes the crankshaft to oscillate as opposed to rotate.
All of the above exaggerated via excessive rpm and / or loads.
Sincerely,
Dale
In a nutshell what I believe to be weak links:
1. Improper running clearance as a result of sloppy case bore
tolerance.
2. Axial crankshaft bore misalignment as a result of sloppy tolerance
control.
3. Using a single point, contra rotating, axial mount balance
assembly. Such an assembly induces a "Rocking Couple" which
causes the crankshaft to oscillate as opposed to rotate.
All of the above exaggerated via excessive rpm and / or loads.
Sincerely,
Dale
