Where did you get your Primus Pump cap, I have been looking for one for my Primus 96, to no avail. Jim.
If the 96 pump tube diameter is the same as the standard size found on other larger Primus stoves and blow torches, you could look to pick up a cheap Primus blow torch and use the pump parts from it. Here in South Africa they are quite common and inexpensive, from about GBP5.00 upwards. What is wrong with yours?
Phil, the 96 is a smaller stove and the pump tube is also narrower and not by far as common as the "normal" size of pump tubes. The Primus 96 has the same pump size as other smaller Swedish stoves, e.g. Radius 21. Jim, who are you asking about where he got his Primus cap in your question above? I haven't seen any being mentioned. Is it the one you saw on the stem of Phil's tool in an earlier post?
Thanks, Christer, I suspected as much. The cap on my rough and ready tool is a cheap generic Primus compatible cap of the larger type. I would not dream of vandalising an original part for the job. I was just wondering why Jim needed a cap. They seldom get lost while on the plunger. A common thing that goes wrong with the pump caps is that eventually the hole wears out and becomes big. Easy to fix with a brass bush/insert and a bit of silver solder.
Even lead solder is good enough for holding a bush in the pump cap. The pump cap doesn't get hot enough to melt it.
True, Nils but if the mating surface is small, like on the thin brass of the cap, silver solder is quite a bit stronger mechanically. That said, in such a non-critical application, if the solder gives way, you can always just redo it.
That's why the one I had made had a flange so there was more surface area and mechanical resistance in one direction.
Sounds like good engineering practice to me I always find it interesting that enthusiasts and hobbyists like us will go to such lengths to improve designs even in minor ways that the original designers saw fit not to implement. I wonder whether these little design weaknesses were just cost compromises or whether they may have been creating a market for service parts for their products. I bet Primus never sold as many replacement vapourisers as Tilley and Coleman did!
Hi folks Im working on a couple of Aladdin 1a lamps at the minute and lm looking to replace both of the Nrv pips. I put in an order to Sands the other day for a few seals and pump cups but they didnt have the pips in stock. Any ideas? Grant
There's always the Fettle Box but I make my own. If you can get hold of some 3mm Viton rubber and a 4mm wad punch then your made. The Viton is the hardest part as it is prohibitively expensive. I have had luck asking for off cuts at comapny that works with the stuff. 4mm is a bit loose in the cup, but plenty big enough to work.
Excellent Nils that was all l needed to know. I suspect l might be able to get hold of a few offcuts of Viton and the punch l have, l just wasnt sure on the sizes as the originals have shrunk a little over the years. Many thanks. Grant
G'day Grant, If you know someone who shoots a .177 cal rifle the empty brass can be used to cut 4.5mm pips. I Cut the primer off, sharpen the edge of the neck and use it in a drill press.
Martin l love it, that is a trick so good lm going with it. While l dont shoot .177 myself (l prefer larger calibers) l think l have a couple loose in the brass box and if not l know where l can get one easily enough. Ingenious Cheers mate Grant.
I must apologise, I see that I asked this question and then forgot about it. I did not see any of the replies until today! The 96 pump has a 14mm tube, smaller than the other models. The thread has been crossed at some time and is now stripped. I hold it in place with pvc tape, which is less than satisfactory. I am looking foe a 96 pump complete to use the cap, if anybody can help me, I would be delighted!
Regarding making pip's. One can also use the pipcup from the nrv. Remove the spring and use it in a hole punch pliers. Snugg fitt.
