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Reply to "Need advice re: Lionel Ploar Express set # 6-84328"

If the chuffing was working before you took the smoke lever out and now it's not, I wouldn't think it would be the board. Check for a loose plug on the circuit board, loose plug for the sensor  and on/off switch. Possible pinched wire at the sensors, Is the blade paddle dropping down to cover the sensor and then clearing them? Defective on/off switch. Usually when the boards go bad, nothing works.

I see what you are saying Chuck but after reassembling the engine I still had intermittent chuffing at least for a while .  I got disgusted so I turned the chuff switch to off and noticed that for several revolutions around the layout I continued to get the intermittent chuffing.  Then it stopped.  Then I turned the chuff switch back on and now I get no chuffing.   So , I had some intermittent chuffing after I fiddled around with the smoke lever.  I guess its possible something loosened up in the process and took  a while to work its way completely loose.  I checked for the things you suggested when I had the hood off and found nothing amiss at least as far as my unpracticed eye could discern.  I will, however,  go back and follow your suggestions and see if I stumble on anything.  Can't hurt.   Frustrating.  Oh, also the blade seems to covering and clearing the sensors as it should; again at least as far as I can tell.

Last edited by OKHIKER
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