Hi Mates, In addition to my current pump leather production, I have been working on special pump washers for Enders 9060, 9061 type stoves. As you might know these stoves use very interesting pump cups which are not renewable. Instead you should find a complete washer set for replacement. In the past some of our friends suggested some repairing ways. Of course one should try to find alternative ways once he/she is unable to get genius parts. But sorry I have never seen any of them as an effective way for pump cup repair. Anyway my experiments are going so well and I hope in the very near future you will be seeing my new design. My problem is: while testing the new products, I see NRV of my Enders 9061D stove creates a difficulty. I need to apply huge amount of force onto the pump piston to get a very very little bubbles into the tank. I dissassembled the pump tube and the NRV. All are there and seem to be OK. My question is, - are all these Enders stoves are not easy to pump? - Is that a common difficulty for you? - Should I think of chancing the spring with a weaker one? In order for me to complete my testing on Enders type pump leathers, I need to get your responses to above matters please. The first 5 people who has got an Enders this type stove and PM me, will be receiving my new design for their evaluations. Awaiting...
Sefa, I have not found my military Enders to be particularly hard to pump. Unfortunately, there are other things wrong with it .. Is there any reason for you to suspect the NRV spring is not original?
Hi Sefa, Your NRV may have an issue because I could easily pump my 9060 without much effort. Perhaps the spring on your NRV may have been replaced at some time. If you do have springs from stoves other than Enders, try using it to see if it will work. To avoid wasting a perfectly good original spring, I suggest that you try out first the spring of a ballpoint pen and from there do some experimenting until you find it comfortable to pump without sacrificing loss off pressure. Hope this helps. Ron
Hi Sefa, like the other people responding, I have no problem at all pumping air into the fount of my 9061 which I used at Newark to cook my bacon&eggs + tomatos for breakfast. Also my Enders Baby is easy to pressurise. Ron's suggestion is the way to go, please keep us informed on your progress! All the best, Wim
Hello Sefa, I have not had any problems with with my 3 Enders 9061's. Or the Baby Enders. Can you take a picture of the spring? So we can compare. Cheers, Jeff
Sefa, I find your topic introduced here intriguing, I have 9 Enders stoves and all could be benefited fron an upgraded pump cup. My 9061Ds show varying degrees of resistance when pumping them. Some even exibit a tendency to have the NRV to appear to be stuck and freed only after enough force is applied with the pump. My 9060 has a pump cup more closely resembling an Optimus pump cup, I can't be certain if this was original or user modified though. I suspect the different pump cup actions encountered may relate to how the stove may have been used by previous owners. I also encounter a complete lack of pressure buildup when pumping due to the small O ring not sealing correctly against the back of the pump cup on the down-stroke. I would be interested to see what you create and would encourage you with all the best! Chef BC/Harold
Thanks a lot Mates for your guidance. My camera is out of order nowadays hence couldn't take any photo of the spring. I changed it with a conventional brass spring and put a new pip, now the pump is operating very easily. The above person will receive my latest designed pump cups if they PM me, advising their full name and addresses. But please give a few days more to complete my works....
Earlier this week Sefa's new design pumpcup for the Enders stoves arrived at mia casa. I will fit it to the Enders asap, but wanted to show what it looks like. Looks perfectly OK to me! . Will post more later, as "work progresses". Regards all, Wim PS. Lovely postage stamps!
Yep, I got a package too, containing ... ... one of Sefa's latest line in pump cup washers, those distinctive Enders ones with the built-in eyelet. That one on the Enders 9061D pump rod is about to be removed and replaced by Sefa's product alongside Because it's not yet been soaked in oil it looks bulkier than the one that's been in use, but you can see here how perfect a fit it is in the pump tube Oiled up and ready to go Sefa's ensured that the eyelet in the washer is of the right length and diameter to enable this to happen ... There's clearance on the backward stroke to let the incoming air pass through the centre of the washer, then the washer shifts up against the nitrile 'O'-ring seal on the forward stroke to pressurise the column of air in the tube. Result? Like every stove equipped with Sefa's brilliant pump cup washers, a perfectly smooth and efficient pump action, and a perfectly functioning stove! John
Hey Sefa, If there are still prototypes available I could use one for my 9061 military. I mada a make shift cup but yours looks top notch - I will pm you Dave
Itchy, What else is wrong with your stove? I have completely stripped and fettled 3 9061's back from the grave and they run great. Maybe I can help? Dave
Evening, All, My Dear Brother Sefa was kind enough to send me one of his new Enders washer assemblies, too, and I plan to test it at the upcoming OSG (Oregon Stove Gathering)! So, those who attend that event, which begins next week, at Diamond Lake, Oregon, can see one, feel it, see how it is made, and see how well it works! I fully expect it will be exactly like every other pump leather that Sefa has made, and will be absolutely top notch in every way! I prefer Sefa's leathers, by a very wide margin, to any other leather on available today, and that includes the OEM offerings from Optimus, Primus, and anyone else who is making such a thing these days!!! Of course, you could make your own, if you were so inclined. But, with Sefa's being SO fantastic, why on earth would you bother, when you can already have the very best for a very small price!! 8) Thank you, very much, Dear Sefa, and I am eager to try this wonderful leather setup in all my Enders stoves in which it will fit!! But, from what I can see, already, Sefa has another great leather on his list, and this assembly looks just perfect, and well designed to function brilliantly!! I'll add my own report here, as soon as I get back from the OSG, and from an overseas job that in Italy that soon follows the stove event! Take care, and God Bless! Every Good Wish, Doc
Hi all, after receiving Sefa's new design cup for the Enders, I made this initial post: John (Presscall) followed up with a fine series of photo's as we have come to expect from him , with Big BTU starting a new post a few days later, again with great pics. In a PM to Sefa I said I'd try to use the Enders as often as possible, to see how it performs in the long run (as Sefa asked in his initial PM to me). This did not seem to be to Sefa's liking, as I got this PM back; If I have misinterpreted your PM Sefa, please let me know. Anyway, yesterday I gave the stove another "outing" till the rain started pouring down, so today (in between showers ) I took out the pumprod for taking a photo of the cup after it has seen some use. Sorry for the lesser quality, but you can see the difference between the skirt of the original and Sefa's. This is where in my view lies the main difference between "old" and "new". Before fitting Sefa's, I tried the old one first to remember the "feel" of the pump (resistance etc). Then, after fitting Sefa's (soaked in engine oil, 10W40, suitable for turbo charged diesel engines ) I tried again and could clearly feel the difference. There is more resistance to be felt. I also tested this by ear, and again there is a difference to be heard. The fount was topped up with fuel on both tests, when using the old cup one could hear a fine lady's fart. The new cup produced more like a healthy country-man's 'tune'. Conclusion, with Sefa's cup a lot more air went into the fount every stroke of the pumprod! I would like to add this Enders has not seen much use so the original cup will most certainly not be worn out, and was well oiled before the testing began. Performance of the new cup was the same on day one untill today. So, all in all this is a fine product. The skirt is longer than the original, and is a very close fit in the pump. This will count for the higher amount of air that goes in per stroke. Also, when starting to pump, there has to be a perfect seal between the center that holds the cup, and the pump rod. This is also clearly there. The Sefa cup for the Enders passed the test with flying colours! Again, sorry for the poor quality of this photo, clearly to be blamed on lousy light, lousy camera and uppermost, lousy operator... Best regards all, Wim, awaiting with growing curiousity the results of the other 4 "testcases"
Hello In browzing 9061 info..I saw where you had 9 Enders. I obtained a 1959 military version that is missing the parts tin and of particular importance is the missing threaded part with hole for the cleaning needle. Do you have any of these parts you'd be willing to sale or know where I could get them??? Joe
Joe, contact Chef BC. See this thread. Maybe he can help. https://classiccampstoves.com/threads// Duane
Hello John, it's me again!! I need to refurbish the leather pump cup in my Enders 9061D (military) I've read your blog on your replacement... I've tried sending a message to Safi the guy who makes them but apparently I have insufficient privileges!! Whatever this means! Do you have an email address for him? Thanks again!
Hi Francois, Sefa's full user name is Sefaudi but he announced a while ago that he wasn't going to be able to supply pump cups for a while due to relocating countries. Regards John
@Francois labelle As @Jeopardy said, Sefa’s presently not a source for those. I think @kerry460 was producing these. Is that so Kerry? John
G,,day . i do make but my health has been bad . i will get more done . please be patient i must also make a living . pump cups will not feed me cheers kerry
