I have recently taken up RC modelling after a gap of about twenty years. I have 5 OS engines. The first one I took out for cleaning is .61FSR. It is totally jammed. I kept it in kerocene oil for a few days but could not loosen it then I kept it in petrol for a day but still no movement. What should I do. I consulted an old friend and he has adviced me to open up the engine. But opening it is also not easy as it is jammed all over. I have to start cleaning other engines after this one. Please advise. Thank you.
Re: Engine Cleaning
Your friend has a good suggestion. You'll need to take the engine apart and clean the parts separately.