Hi. I have damaged the NRV on my Primus stove. Has anyone drilled this out without damaging the threads on the mounting base. If so what size of...
Hi. I recently overhauled the NRV on my Primus 96, (1931 vintage), and was unable to locate the old sealing washer around the valve. I had a good...
[ATTACH] Post-WW1 example of an external NRV Svea No.4 stove complete with original silent tube burner. The latest verified date we have for the...
Recently I came across an NRV removal problem that I had not encountered before. The first stove was a Hipolito #1 (slotted screw head NRV) And...
...out of the pump tube :oops: I stripped it down and went to remove the NRV... Hello, that's tight I thought... I then realised I hadn't...
[ATTACH] This is an external NRV Svea No.5 from a date somewhat later into the 1920s than was once realised. It is an example which sports a...
...still a child. Now I’d like to share my method for removing stuck NRV valves when the valve head is already damaged and rounded off and any...
...ground and wearing/flattening the central inscription: [ATTACH] The NRV was stuck and required pump tube removal - twice! Beware, not all...
I have a very good Primus 1S. I changed the NVR (I used a Fogas). It was working perfectly until the last time. I had a leak inside the pump. So I...
...servicing the stoves (new pump cups, graphite washers, cap seals, NRVs and jets) many of my serviced stoves boils a liter of water from 13C in...
Looking down the pump tube I cannot see a screw in NRV and there is nothing to catch any extractor. I presume the nut on the pump tube riser may...
I have been pondering how to get at the NRV without wrecking the old stove. I enquired for ideas here: NRV on 1895-96 Primus Anyway, I had tried...
...I have (still) a problem with my second Primus 96 from 1926 ( leak from n the pump tube). Where can I buy a new NRV please ? And it becomes...
...gaskets for the pump tube nut used on British military stoves ? The NRV on the Burmos I recently acquired needs work but I'm wary of removing...
At the beginning of my adventure with stoves, I used an NRV unscrewing wrench bought from Juliands. Quite often it happened that it jumped off the...
Heat the end of the NRV removal tool(not too hot to melt solder) . It helps with stubborn NRV's.
Many in my collection had no washer under the NRV. Flipping the cork usually doesn't work either for me, although many had a cork pip. Takes a...
@Blackdog The heat expands the flat surface of the Nrv while the flat surface of the pump tube is not immediately affected and does not expand. I...
NRV Alec? John
My Perfektus 10 has a «normal» NRV: [ATTACH]
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