Good evening, Every time I open the fuel knob to let some fuel into the heat up tray, some dark grease comes out. This is the third time this has happened, and I want to know if anyone knows why this is happening. The burner is also making strange loud noises since I changed out the nozzle for the spare. Pic attached for the grease. The stove sound goes from pretty quiet to loud like a jet engine. Any ideas? I can reduce it by playing with the fuel knob if I’m lucky. Does the burner make more or less noise depending on tank pressure? Thank you. Willy
Hi Willy, These are silent runners and should never sound like jet engines. If the gas is burning inside the cap rather than outside the cap holes it's called underburn. Shut it down when this happens. Prolonged running in this condition can damage the burner cap. I think what's happening is there is a soot build up inside the cap and if you prime with tank fuel you're shooting the gas stream into the soot and it's dripping down looking as black grease. I'd take the cap apart and clean it and make sure the inner cap isn't upside down. An upside down inner cap could cause an undeburn. These Enders have wicks so the wick may be charred and coloring the gas black. Easiest is to check the cap first. What is the history of this stove? Have you had this for awhile and it ran correctly in the past and this is a new problem or is it a stove you recently picked up?
Hi Ray, This stove was bought as unused. It was in really good shape. The stove when it was first used, has this grease come out, and has come out every time using it. The burner cap is installed correctly. The grease does not ignite, it evaporates from the heat. I’m thinking it’s from the intervals/tank to prevent rust while in storage? The noise sounds like when you press your lips together hard and blow like a raspberry. Any ideas?
Ok, maybe it’s a charred wick. Is there a for sure way to tell, and what about replacing the wick? This is a complicated stove and I’m sure it’s not easy.
I have an Enders I am having a serious time getting to the wick. I had another it took weeks to get the tube off of the burner. patience and a lot of research may be necessary to get to the wick. Enders 9060 Tank/tube removal
Cosmoline? It's a preservative grease the Military was fond of a generation ago. But usually they would soak rifle actions [for instance] in gasoline to dissolve it. If it's a naptha [petrol, benzine, white gas] user then that should have dissolved any cosmoline already. About Enders, ''I know nothing.''
Cosmoline is a brown colored oily, waxy ointment like substance. Maybe it will turn black if heated but I'm not sure. I would be surprised if the Germans would put it inside a fuel tank. So, the burner caps are clean and the inner is not upside down? If the stove was new and unfired the wick should be OK. In another post you say you put something in the fuel to clean the system. Was it acetone based carb cleaner? Could it be acetone dissolving the graphite spindle packing? First thing I would do is dump the unleaded gasoline and fuel cleaner and rinse with coleman fuel or naptha then dump that into a clean glass jar and have a look at it to see if the black is originating in the tank. I would stick with using coleman fuel as my chosen fuel if you can. Maybe the unleaded gasoline caused internal clogging and carbonization. Silent burners produce a gentle hissing sound and there should not be any roar or jet engine noises. It sounds like you were going into underburn. Except for Tony's suggestion in your other Enders thread of putting a pot of water on and letting the stove run a good while after insuring the tank is clean I can't offer any other suggestions. Enders instructions say to keep the cleaning needle up during priming. Can you try an ethanol prime instead of tank fuel? I always use tank fuel for priming my 111B the same as you're doing. It's so much easier than bringing a bottle of alcohol along but it does produce a sootier prime. Outside of these ideas I join SveaSizzler and Sgt Shultz from Hogan's Heroes and say I know nothing.
Thank you. I emptied the tank, cleaned it out with Coleman fuel, refilled, put the original nozzle on and things seem to be working fine now. The fuel tank was really low so maybe that’s why the burner was noisy yesterday. Didn’t see any damage on the burner when I took it apart to inspect it. So, because I like to tinker with things, I thought I would try and disconnect the fuel tank from the burner to check the wick. The multi tool wrench fit perfectly on the nut. Great, this should be easy. Put some muscle into it and the wrench tore right through one side of the nut. What the hell was the nut made from?? Thought the nut would be the same steel as the wrench. Rekt. Hope I don’t ever have to disconnect the tank for repairs. I should really stop working out so much. Haha
Yes. Unfortunately, I’m not a very patient person. Was hoping to be able to loosen it with just the multi tool. Didn’t think the nut would be made from a steel as soft as lead lol.
It is that the thread is most likely 'locktight' locked to the tank. Patience is a tool that we bring out of our toolbox often.
Yes I know this. Ive loosened many lock tight nuts in my days. This is another beast altogether. It’s like it’s welded.
Not like any other, just like why I took weeks to get mine off. I was informed by @Russenjesus that it would take "High Heat" to break the thread.
Hi @WilliamH I think you will find/ have found that that the majority of parts used in the construction of Enders stoves are made of brass. Brass is considerably softer and less strong than steel and doesn’t stand rough handling. Most carbon steels are magnetic, whereas brass is not. This provides a useful quick, non-destructive test. The thread-locking compounds used by stove-makers are very strong and require long soaking in a solvent such as Acetone, or thermal decomposition at relatively high temperatures before you can even think about applying a spanner/ wrench and some torque. Pity about the damage to your stove. Best Regards, Kerophile.
It looks like the question of the grease has been answered by @Dutchmike in Williams second thread Enders 9061 help The Germans packed them with grease. My soot and fuel in the cap idea was way off.
