03-05-2022, 09:13 PM
(This post was last modified: 03-05-2022, 09:17 PM by Bob Culver.)
If that is the total extent a small crack. As is so common with reground cranks the radii not too perfect.Ttempting to remove with a chainsaw file or Dremell and statically rebalance. Some older books claim fatigue life starts afresh if crack fully removed. As a precaution all the radii on my car have been filed out...
Dunno what expereince is with the new small cranks but lack the lovely proportions of the original so stresses must be more concentrated in crankpins.
If the pistons are solid skirt the recommended claerance was .004.
Without instruments an idea of wear can be assessed from ring gap change, or nails filed to length etc. I have encountered barrel shaped wear easily missed if just top and bottom measured.
Dunno what expereince is with the new small cranks but lack the lovely proportions of the original so stresses must be more concentrated in crankpins.
If the pistons are solid skirt the recommended claerance was .004.
Without instruments an idea of wear can be assessed from ring gap change, or nails filed to length etc. I have encountered barrel shaped wear easily missed if just top and bottom measured.