I didn't have to do much to this if I recall. I am sure no more than a cap gasket and NRV inspection or overhaul. This has been a very reliable stove for me. Brad
I've got one of these, too. I'm always afraid to over-tighten the burner to the fount. Does your stove have a gasket, washer or seal of any kind between the two?
Hi @SKLColorado . There should be a lead washer between the fuel tank and riser tube. Fettlebox should be able to supply one. Lead Tank Washer - 100 Type. Pack of 2 - The Fettlebox Best Regards, Kerophile.
Ah . . . very good. Thank you! I was already working up an order for my RM picnic stove, so it's good timing.
I went to the site and looked at the photos. My fitting looks a bit different as compared to the photo provided there. Is this what your fitting looks like and you still used the lead washer?
Hi, the measurements of the lead washer offered by Fettlebox are given in the advert. The lead washer is fitted in a seating on the top of the filler tank. Once the riser tube is fitted and tightened down the lead washer deforms and takes the shape of the seating, and makes a sealed joint. It is important not to over-tighten this joint or the lead seal will be progressively squeezed out of the seating. This is especially the case with collapsible stoves, as the joint is re- made on every re-build. Best Regards, Kerophile.
Hi, you can check whether you already have a lead seal in the joint by scratching the washer with a sharp point. If you can scratch the surface and expose a metallic, silver scratch mark you likely still have lead in the joint. Depending on the amount you can add to, or replace the lead washer. The reason lead is used rather than a “rubber” or synthetic sealant is that there has to be conductive heat transfer through the joint in operation to help maintain gas pressure and fuel pre-heating in the fuel tank. In addition lead washers can stand many dismantle/ re- assemble cycles and still provide a good sealing performance. Best Regards, Kerophile.
Oh bother. Well . . . guess what that was we were looking at? A rubber seal. I couldn't believe it. No lead washer at all. It was a bit crusty and the fitting looks totally different now that it has been removed. This all makes much more sense, now. Thank you. The cone shape in the rubber washer was partially formed by the reserve cap. Interesting.
The reserve cap can use a "rubber" seal. (Viton). But the riser needs the lead seal, for the heat, missing in your photo, as @kerophile said.
Agreed. I ordered the lead washer. Well . . . more than that, actually. I can always make my own rubber seal for the reserve cap, if necessary.
I could, but then I'd need to get the lead pot out of the garage attic and make a mold . . . maybe I will down the road. Been wanting to make more for my Aida 1500 lantern, so . . .
Put a small chunk of lead on a hard surface and hit it with a hammer. I’m pretty sure you can still buy lead sheet from McMaster-Carr(?) edit: Yes! ….Arch
