I'm assuming finding a maintenance kit for the pre- 1970 Svea 123 will be tough, so what do you suggest or do for maintaining a Sievert mid to late 1960's unit? Are any of the parts in the latest Optimus Asian made Sveas compatible with the original Swedish units? I'll keep searching the past posts as well. Thank you !
The Svea 123 is not very complicated. You'll need to service the fill cap with a new seal and SRV pip. These are available from Fettlebox. You may possibly need a new wick now or in the future and these can be made by cotton mop strands. This is generally all you'll need.
thanks guys! I didn't see anything on the A&H enterprise site for the older Sveas. Is shipping spendy from Base Camp in England? What does SRV stand for?
SRV is safety release valve. It's built into the top section of the filler cap and will release pressure as a safety precaution if the stove becomes over pressurized. Here's the fettlebox link You can see the SRV section of the cap shown in the picture. It's a spring and brass pip cup with a viton pip seal.
@olive Edit: (thanks, @boknasild). I should have said: The original Svea 123 does not usually require additional graphite (if there is still some left in the shaft). See the full breakdown and reassembly of one here. Cheers Tony
I thought 123s used gland packing ( graphite ). In the drawing found in the Reference Gallery it has partnumber 9411. For graphite packings I use graphite sheets that Trojandog sells. They are very good and can be formed to fit. Bjørn
@snwcmpr & @boknasild Indeed I was too swift with my answer! And should have said "usually". I have edited my post above. Cheers Tony
@Tony Press I read the original statement as meaning that it did not have any graphite packing. Now, I see that you meant it did not usually need 'replacement' graphite packing. Ken in NC
@snwcmpr As the kids would say, "my bad"! I did mean as you say, and therefore have edited my post. Interestingly, I recently got two well used123s to clean up and neither required additional packing. I'll have to have a "Svea Day" to get them and a couple of 123Rs completed. @olive, Have fun getting your Svea 123 going. They are a great "gasoline" stove. I recently had to fix a modern MSR Whisperlite and was struck by how good the Svea 123 in in comparison. Cheers Tony