Primus does not use a standard thread. This thread is 7 mm diameter but has 28 threads per inch with a Whitworth profile. The 1381 should...
Actually, the Primus 1020 jet thread is unique to Primus. It is actually 7 mm diameter but with a 35 thread per inch Whittworth profile. This...
You say it holds pressure, but how long does it hold pressure? The symptoms you mention could indicate loss of pressure. A service and replacing...
Because it is made by Høvik Verk, I cannot be sure when it was made. I do know that the equivalent Primus model of this variant started towards...
I had forgotten that a lot of parts are being reproduced in Taiwan. It's been a long time since I last looked. I might have to make an order...
I'm afraid Frank is right and these cleaning rods are not available anymore. You either have to find a used spare or if someone can produce a new...
If all the parts are original, then that is correct. A best guess would be in the period 1934 to 1938. The mixing tube and chamber on these are...
Good to know it is still for alcohol. I find they work well. Just remember to drain the tank when not being used for while as the alcohol is not...
The primus is labelled as a 1320. Is it still set up for alcohol or has it been converted to run on kerosene?
Welcome to the forum @Dinger . Where abouts in Denmark are you from? Myself, I live in one of the suburbs of Copenhagen. As for your questions....
I have been trying to look into this missing lamp. From what I can see is that model 109 is listed as being new in 1954. I am assuming it used the...
It could also be the 2nd November? Just for info, putting the month before the day is American, not English (or Australian).
You could also try a helicoil. Yes, the thread is M4. Remember that this is a blind hole and not to drill through into the tank. Doesn't help...
I have never seen the inside of one of these tanks, but if it is like other lamps, the inside edge is crimped in place. That means it can't come...
As MYN has said, the solder joint for the ring has given way. Originally it would have been soldered in place from the inside, but it can be...
Not a problem. It will be interesting to see what the lamp looks like under all the grime. :)
According to the Radius parts lists, the mica cylinder was offered as an alternative. The glass had part number 102/24 and the mica part number...
Not so easy as there is a metal shaft involved. Here you can see a picture of mine showing the wheel and shaft. It is the later version with...
@presscall What do you do with the inside end of the needle (in the jet)? You have to avoid an edge that the cleaning needle can catch on.
Another collector here in Denmark had the top cap pop off with a bang while the lantern was running. It had just been cleaned before being used....
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