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« on: December 08, 2018, 05:53:34 PM »
Hello all. I am a longtime viewer and have never posted but think I can add a little about the lack of power.
I have several Listeroids that power generators, compressors and stuff. One of them belted to a ST-5 falls far short of expected output, but holds frequency and voltage great at less than full loads. In dinking with it last week I found the governor pulls the rack and speed increases when the load is small, but at high loads and certainly at near full load the speed starts to fall off even though the governor has pulled to "full fuel" position. I pulled the pins in the linkage and tried again to get full power by manipulating the rack by hand had no problem at all in pulling rated power and beyond! The situation is that the internal governor arrangement does not have enough travel to operate the rack both to no fuel and to max load fuel.
A solution that I'll implement is to lengthen the arm that operates the vertical linkage so that the rack can open further. I believe this is a defect in this engine due to a poor copy of a Lister. This defect does not exist in my other engines.
Maybe other engines have this defect hidden waiting to puzzle their owners?
Thanks for listening,
George