A parts supplier has listed two screws as possible to be those required to mount the operating coupler to the pilot of
Lionel starter sets 0-8-0. The second number appears to be larger in diameter than the first number:8530-182. The
second number given as a choice is: 8341-183. This engine is from a set breakup, (these were available in several
roadnames and with different tenders) so I have no paper, or schematic (if one was provided) that identifies the
correct screw for this site. Anybody got a clue as to which is correct? This engine happens to be #4508, but it has been
offered in various road names and with and without an operating front coupler. I think the first number, 8530-182,
a very slim screw, is it...but....????
