Hi Another Question Where can I find a copper gasket to both large or small Burners. I find that they work the best. I know they used to be sold on the bay but I can't find Who sells them now ?? Again....Any help will be Greatly appreciated Thanks All ECHO1
Hello @ECHO1. I too like the copper gaskets. Fortunately the ones I purchased came with a job lot of burner parts I acquired in an auction. I had 2 sizes with the same inside metric diameter for a tight fitting on the burner thread(had to be rotated on) but with different outside diameters for fitting above and under the spirit dish. The flat washer ones were the better type. They have to be annealed to a glowing red first before using them and are recoverable if for some reason the joint has to be taken apart again. Can be a bugger though as the joint will take some effort to undo again unless anti-seize paste is used before assembly and/or reasonable heat is applied first before rotating the burner to undo. Some engineering outlets may have them if you are lucky. Good luck, John
I bought copper seals from car spare part shop. They had lost of different sizes. I found that they don't work in my stoves. Initially they look to work ok but when stove is used few times they start to leak. I think that they cannot follow thermal expansion & shrinking so there will be a leak. Leak can be solved couple of times by tightening the burner but after that copper washer gets hard and don't do the sealing anymore. This has been my experience but if they work in your stoves then they are good solution for burner sealing. (Maybe copper seals here are made from different copper alloy. )
I found some on the bay...had to look The Anti-Seizure is a great idea. never thought about that aspect !! I think the Copper or brass ones are better then the fiber ones I will let you know how it all works out when I receive them if I look in a hardware store What size would be for a large and small burner?? if you know that will help me Thanks I Truly appreciate the help !! ECHO1
I don't know where Here is !! The flag's are missing next to the name so I am in the States. I will try the Compression copper ones and see if they Leak. I'll tighten them after 1st use and see if that helps !! Thanks ECHO1
Blueflame, I will have to go into the hardware store with 2 of my burners 1 small & 1 big so I can get a Good Fit. I know they make compression ones. I will try those and see. The whole reason I am asking is I took apart an old burner that I was using for years and it had copper washers. they worked Great. I lost 1 so now I want to replace it. I did not realize how hard it was to try and find them !!! ECHO1
Hi @ECHO1 . I am in full agreement with @Afterburner on the superior performance of heat-resistant fibre washers for connecting burners to upstands. This approach is/was followed by the vast majority of classic stove manufacturers around the World. Have a look at this thread: https://classiccampstoves.com/threads/heat-resistant-burner-washers-and-fitting-them.8382/ Fettle Box, advertises on CCS and can supply good quality heat-proof burner washers, and other stove washers and seals. Best Regards, Kerophile.
Harbor Freight in the States sells a copper washer assortment, either in the stores or online. Any auto parts store will be able to help as well, check the Dorman section. For metric copper washers in the USA, check foreign tractor dealerships. The local Kubota and Krone dealer had most of the seals for my Mercedes diesel fuel system. Quite dear, though.
@ECHO1 I’ve only ever found one copper washer present on a classic stove (a Hipolito). I’m with @kerophile & @Afterburner on the utility of specialist fibre washers such as those made by The Fettle Box. The trouble with using copper washers, as I’ve found, is that they require more torque to get a good seal. This is not desirable on some old stove parts. The trick with fibre washers is to 1. Not overtighten them to the point of distortion; and 2. Nip them up after an initial burn. Cheers Tony
The Indonesian made Butterfly brand pressure stoves still use asbestos for the stoves sold in Asia. The stoves sold here through St Paul Mercantile use aluminum burner washers. They work OK but are not good for multiple fittings. They are cheaper than fiber and I'll use one occasionally if a fiber doesn't fit well under the spirit dish. The fiber washers are still the best choice and better than any metal I've tried.
Some stoves originally did come with copper seals(Earlier Primus 535 for instance). The conical type copper seals that fitted on top of the fuel pipe fitted with a cone end. They worked very well and could be stacked to allow for variances in the inside diameter of the burner base itself(whether the hole inside edge had been arrased or not or by how much). Some burners had differences in how they sat on the cone fitting which would also affect their height or whether they could seal. Also(from memory) the thickness of the copper conical seals varied to allow for easier height adjustment. Annealing the copper seal would soften the copper so that it would seal easier without too much tool pressure. Some burners are supplied to this day with aluminum conical seals that are similar to the copper conical seals. John
Maybe not what you could use, but there are copper flare washers.....Or just follow this fellow's advice..annealing will make it softer.
