@gunrunnerjohn posted:If it were giving chuffs at 0 and 360, that would only be one chuff!
That’s my point exactly. Only one chuff per driver revolution. When I manually activate the good chuff switch, it triggers a chuff each time. I need to examine the cam. I have an old Lionel Consolidation, with the lever that’s pushed by the side rods moving forward that does the same thing, by design.