Frustration . . . that’s the word which describes the M1942 and M1950 NRV (Non-Return-Valve), a.k.a. check valve (The Department of the Army Technical manual, TM10-708 calls it the air check valve). The problem is that the original rubber gaskets get old, dry out, and then fail to seal, allowing fuel to enter the pump tube. Some people say that this is one of the two primary causes for stove fires on these two stoves. The other is the pump-tube-to-tank gasket (TM10-708 calls it the filler cap gasket).
I had planned to go kayaking today but I woke up with a headache this morning. While waiting for it to go away I decided to gather up my stoves up for a photo. I began buying them last summer and worked on them this winter. Today is a 70 degree, sunny mid-March day, so, why not. I will also add that all but one are in functional condition and I’ve been using them on camping and hiking trips.
First up are my 1941 American (AGM), two Coleman 520s and 530 stoves. The 1944, brass tank Coleman still needs to be reassembled but the others are complete. Note that the nickel-plated brass stove on the right is Coleman’s post-war “GI Pocket Stove” version of the WWII stove (it wasn’t used by the military, nor would that thing fit in any of my pockets). The nickel finish was also present on their original 1941 stove for the military. In 1942 they moved to painted steel tanks.
Left to right, AGM 1941, 1943 Coleman 520, 1944 Coleman 520, 1946 (B46) Coleman 530
Next up are the Prentiss-Waber M1942 stoves, both made in 1945. Some people call these the Mountain Stove as it was used by the US Army’s 10th Mountain Division in WWII. Many people comment that this was the best single-burner stove. I’m not completely sure I agree as I have Continue reading →