Re: 493 Today - Counterweights

When I saw the #497 operating in Durango, the counterweights were consistently hitting the grade crossing north of the Depot.
Until then I had thought that the K-36 and K-37 engines had basically the same engine under the boilers (which were different).

Was the problem with the #497 a problem with tired springs and equalization of that engine and that may be corrected if the #493 has
new springs, etc... Or is there a difference in the engine mechanism's geometry that causes K-37 counterweights to hang down
more than a K-36? And thus the issue may exist with #493 as well.

ken clark