Hello, picked this up a couple of weeks ago from fleabay in the UK. It has a 1051 burner / vapourising tube that all seems to be a piece. The only replaceable part of it seems to be the nipple. I managed to get it going after a bit of cleaning and spraying the rust-prone parts in clear-coat lacquer. The original chrome is long gone. I like how it runs. I'm using Holt's Brake Cleaner and it seems to run cleaner (pun intended) and more freely than paraffin. Also using mantles from Base-Camp, no. 6176. They seem just the right size. The main issue, among many was that I could not get the NRV out to replace rubber nipple. Unfortunately the valve edges have rounded off and don't fancy unsoldering the pump to get it out. Any alternative suggestions welcome. A small amount of liquid leaks into the pump chamber. Luckily the pump handle can screw into the top of the pump chamber.
The enamel on the hood looks to be in excellent condition. That is a good find. Are there any traces of nickel on the brass parts? Primus did offer this model in a polished brass version so it is possible it is original. The original straight generator without cleaning needle has been replaced with a Coleman R55 generator. It is very rare to find the original generator on a Primus 1050. Most have been changed to the 1051 type with the internal cleaning needle. The Coleman R55 will also work.
Nice lamp and going well Others may have better ideas but if the NRV is totally rounded off the ony way to get it out may be destructive (i.e drilling a hole in it) - if you can post a picture of what it looks like now maybe more ideas will be forthcoming. Chris
What sort of tool are you using ? Many members have made their own and have had excellent results. Have a look here - go straight to page 2 if you're impatient Primus No 1020 age and seized solid NRV I can understand why the thought of unsoldering the pump is intimidating, I was quite nervous myself but it's actually not difficult and importantly, it's also not difficult to put back in.
I just re-read your original post and saw you had tried paraffin - I believe that these are designed to run on the equivalent of the holt's fluid rather than paraffin. Building on the link posted by Henry above - I used a home made tool much like the ones shown in that thread on a similar issue with an Optimus 350 , but I used battery powered impact driver to encourage it out. BUT be warned - it must be a good fit to whatever you have left as the power tool can finish the job of rounding it off !
Lovely lantern. Congratulations. I have never seen what the flame from those small preheaters looks like. It is a roaring blue jet or a standard diffused yellow flame?
For some reason I have found more 1050/1051s with rounded off NRVs than other models. I assume it has to do with the larger thread diameter of the NRV. A good tool with a good fit and sharp straight edges helps, but sometimes they are too far gone. I have then bored a hole in them and used a fine pitch easy out. Of course, then you need a new NRV of the right size.
You just need to browse the section with these lanterns to see it. Here's one example. Neither. It's rather a combination of those It is a very gentle and 'soft' blue flame that gently lick the generator. It doesn't need much preheating since It's a gasoline lantern, so it's quite sufficient.
Thank you for all. I will do my best to show the lighting and running once I replace the NRV. This was required as I could hear the gas escaping from the NRV when the fount was pumped up. I had to desolder the tube and as stated wasn't too difficult. The NRV is still not coming out so hoping some penetrative oil will work to loosen it.
Light up video as promised. I had fitted a NOS Coleman R55 generator from Base Camp. The font had about 40 pre-pumps before lighting. It requires a lot of pumps to get the globes to light up to the proper intensity probably because I had only put in 1/2 litre of fuel. The background "roar" is a very loud industrial chimney fan. The lamp is much quieter.
