I took the handle of the pump apart and found many spare parts. There was a new generator and a few pips. The pips are in good shape and allowed me to get the thing burning. See video m1942mod I do not think it is running like it should as I could not bring a small pan of water to a boil after 20 mins. I also have to have the lever on the side all the way up to keep it going. after watching that video, do you think it would do me any good to change the generator out for the new one that was in the handle? again please forgive me for asking so many noob questions. Ari P.S. this is burning on coleman fuel, I soaked the leather in oil then roughed it up, I then added a new pip.
Sounds normal but 20 minutes is long. How much water roughly? It can't hurt to change the generator. The old one can be cleaned out and made like new. The cleaning lever needs to stay in the up position during use. Sometimes the bell does not want to unscrew from the generator. Keep the great questions coming. We are all learning. Jeff
Ari, Your stove is definitely clogged. The flame should be much stronger, to a point that the burner bell glows red. See here: By all means, replace the generator if you have a new spare. Make sure there is no gunk in the control valve assembly. (You can flush it with carburetor cleaner). Test the stove for pressure leaks - pump it some 20 strokes and submerge in water. Feel free to come back with as many questions as you want. It gives us the opportunity to show our knowledge Yonadav
(Toda Roba) Thank you both very much. I will keep asking questions. LOL And I will replace that generator.
Have you opened the control valve all the way? The fuel system sends a mix of fuel and air when it is just opening at around a quarter turn. This is used for starting because it is easier to vaporize. If you did fully open the valve, have you topped up the tank pressure? The lighting position of the valve can consume a lot of air and reduce the pressure. How full is the fuel tank and how many pumps did you start with?
This does bring up another question that has come to mind. I noticed the knob takes a bunch of turns to open all the way. But everything seems to be really controlled by the lever. What is the way those two controls are meant to be used together? I have been pumping 25 pumps into it and opening the knob all the way, flipping the lever to the up tell I have enough fuel in the cup to pre-heat the stove. Then I put the lever down and pre-heat the stove tell the fire is almost out then put the lever back up.
Ari, The lever is not designed as a means to control the fuel(though, with a deft touch it can be done). It is a cleaning lever. These stoves are on/off burners. The procedure, if using the stoves fuel to preheat(I personally preheat all my stoves with alcohol/meths as it doesn't leave soot behind and keeps the stove clean) is as follows: 1. Fill no more than 3/4 full of fuel 2. If you didn't just fuel it, open the fuel cap to relieve any residual pressure. 3. Move the cleaning lever up and down several times to clean the gas tip/jet. 4. Pump it up (the instructions recommend 20-30 strokes, I generally only pump it 15 times initially as I feel it flares up less this way when lighting, your mileage may vary) 5. Open the valve until the priming cup is 3/4 full(disregard this step if using meths and prime as you would a kero burner) 6. When the priming fuel is nearly consumed, slowly open the fuel valve.(I generally open the fuel valve a few seconds early and actuate the cleaning lever again and let the fuel pressure aid in forcing any contaminants through the jet) 7. Add additional pressure to obtain the desired flame. 8. To shut down, close the fuel valve and wait for the flame to go out. Let it cool a bit.(safety) 9. Open the filler to relieve pressure. 10. Pack and go. These instructions are based on the actual operating instruction and my personal experience. I own several of these and have used them for many years. Hope this helps. Mike
Ari, The generator/vaporizer on these can easily be brought to "like new" condition provided the jet is ok. Pull the generator, be careful not to bend/break the cleaning needle. Take the burner bell and gas tip off. Remove the vaporizer screen(this can be difficult, but take your time and soak it in carb cleaner if you need to. You can also heat it with a propane torch to burn out the crud. Once the screen is out, unroll it and clean it with detergent, solvent, or my personal favorite a propane torch on low or another stove. Hold it with pliers and gently heat it an you will see all the crud magically burn away leaving a pristine screen. Clean the generator tube and jet, re-roll the screen and put it back together. Be CAREFUL to line up the holes in the burner bell to match the pot supports when folded up. Rifle bore brushes in an electric drill do wonders on generator tubes of all types. There may be better ways to do it, but this is the quickest and easiest way I have found to do it. Have a super day. Mike
Well said. That is what I do. On another note I have come across two M-1942-Mod stoves with cracked feed tube. This would cause a lot of problems. Cheers, Jeff
I do not get any fuel out of the stove when the knob is opened unless I put the lever in the up position.
That's right. The cleaning lever has to be up for the stove to run. Down to clean the jet. The cleaning lever is not meant to regulate the stove.
