This is the infamous 5cp version which I pulled out of my storage unit today. I'll give it a good looking over in the morning to see if I can locate and rectify the problem... (Edit - I've dismantled the lantern and the problem turns out to be the gas tip which is now completely blocked - presumably it was merely partially blocked when the lantern was 'running' at Newark. That's a poor show from a new generator with, maybe, a total of 15 minutes running time, which has never worked properly from the very beginning - bah! )
OK, some progress being made here - I've replaced the gas tip with one from one of those pig-tail generators (Q99?) which fits mechanically but seems to pass a heck of a lot of vapour, despite the tiny jet. Probably, I'll need one from a one-mantle burner. We'll see - at least it hisses now at the right time from the right places... A few issues, though:- 1. I aligned one of the globe cage uprights in line with the knob (as seen in the first image above). Then I aligned the burner at 90 degrees to the block to which the vapouriser attaches - that brought it in line with the globe cage. I just doesn't look 'right' at the bottom, though:- Is this OK? 2. There's no gauze in the bottom of the burner tube - is that right? 3. What's the correct mantle to fit here? Any suggestions would be most appreciated - thanks in advance...
Takes a #21A or a Peerless 2C-HG (same size). The MilSpec gas tip is something like 0.0045" and a Q tip is 0.008" just like a V tip. A 6 tip should work with the air plug completely removed. Did your MilSpec have the pricker? you may be able to clear the blockage. I've had new gens be be blocked from the get go...
OK, I've got plenty of 21As, so that won't be a problem. Also quite a few Coleman generators of various sorts so I'll cannibalise one of those. No pricker on this lantern - none in the generator and no pricker control to be seen so how would that work..?
David, Look in the spare parts well. Do you have a wrench? There should be a small pricker-tip cleaner tool attached to the wrench Glenn
Yeah I don't have the wrench but at least I have the pricker. I got it with a Junk 1945 AGM MilSpec with a bad fount. here's what it looks like:
Did Mr McRae refer to my Milspec somewhere as 'a bit of a dog', or did I dream that? - can't find it anywhere... Woof, woof! Actually, it still wasn't burning properly with flames outside the mantle, but it did manage to baffle the auto exposure on the camera. It also managed to attract a moth! - not bad for the middle of January in the northern hemisphere! So, should there be a burner gauze present? Is it worth removing the air plug from the air intake and seeing if that improves things..?
Well that is certainly doing a bit better. Probably work OK without the gauze but that is normally there to prevent a burn back into the mixing tube and I guess there should be a screen of some sort in te mantle carrier. Removing the air plug might be worth a try but doubling the air is not likley to improve the burn. More likely to give mixture problems and a yellow burn. You have to understand that in all lamps the air intake is restricted to achieve the correct mixture. The effect of too rich or too weak gives the same symptom of a yellow flame burn. ::Neil::
I thought the air plug was there to cope with the varying grades of gasoline the lantern might have to run on during military service...
Possibly, so perhaps worth a try but I suspect it won't help much. Only one way to find out and prove me wrong. ::Neil::
I believe the air-plug was there so that if some how the one air tube became clogged the air plug could be transferred to the clogged one opening up the unrestricted air way. IE a "spare" or auxiliary air-tube. MilSpecs also do not have any screens in the burner cap. The Generator must also be pointing straight down the burner tube and be snug where it enters in the top... To me it sounds like now its passing to much fuel. You are also only trying to light it with just 10 pumps of air, right?
