Primus 96 with Sillent Damper - 1935

Discussion in 'Primus No:96' started by idahostoveguy, Jun 12, 2014.

  1. idahostoveguy

    idahostoveguy R.I.P.

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    Found this stove-in-a-tin last year for a really good bargain. Like the many other stoves waiting in the fettle queue, this one has been waiting nearly a year. What is special about this one is that it came with the silent damper.

    I purchased this off a familiar auction website and had seen a glimpse of the silent damper but wasn't really sure if it had one. Nobody else bid on it and was able get it home from Las Vegas, of all places that someone would be camping. I was much elated when I opened the tin and found exactly what is shown in the pictures below. The silent damper was sitting on top of the fuel tank. Like you see below:

    1402550230-xPrimus96_001.jpg


    I think it is all original with instructions, all the bits an even the jet cleaning needle envelope, which is a little bit tattered, but recognizable.

    1402550408-xPrimus96_002.jpg


    Here are shots of the tank, silent damper, and the silent damper fitted in the burner bell. I noticed that the damper fits below the rim that is on the inside of the burner bell, instead of on top. Seems to form a better seal, than if it were sitting on top of the rim.


    1402550525-xPrimus96_003.jpg 1402550535-xPrimus96_004.jpg 1402550541-xPrimus96_005.jpg


    The kit also came with two interesting items - lead gaskets for the lipstick burner. I didn't know what they were at first until I picked one up and found their weight.

    1402550713-xPrimus96_006.jpg

    Other interesting bits...

    1402550796-xPrimus96_007.jpg 1402550809-xPrimus96_008.jpg 1402550836-xPrimus96_009.jpg
    1402550922-xPrimus96_010.jpg


    The case is in pretty good shape, with good paint and legible text on the outside.

    1402550970-xPrimus96_011.jpg 1402551040-xPrimus96_012.jpg

    Top of the pot stand leg...

    1402551092-xPrimus96_014.jpg


    I don't know if you can see the date code stamped on the bottom, but it's 'Z' for 1935:


    1402551124-xPrimus96_015.jpg 1402551187-xPrimus96_016.jpg


    Here's the pump rod, with a completed dried up leather. I tried to just oil it, but it was too fragile, so I put on a Sefaudi pump leather and we were back to good as new:


    1402551232-xPrimus96_017.jpg


    Here are the flame shots. First one is the roarer flame with flame plate. The other three are silent damper (click to see larger image):

    1402551282-xPrimus96_018.jpg 1402551292-xPrimus96_019.jpg 1402551302-xPrimus96_020.jpg 1402551315-xPrimus96_021.jpg


    It took a little more effort to get this relic going:

    1. The NRV spring was broken in half and so I replaced with a click-pen spring. It seems to be pumping quite well and holding pressure. I also put a new pip in. It didn't have a lead washer, like most of them, so I put in a Viton O-ring and it holds really well. I've done that with several of my kero burners and have found that it seals really well and is easy to get the NRV out of the pump tube.

    2. The pressure release valve on the filler cap was damaged. The seat had been messed around with so I had to scrape and reform the seat so the stove would get a better seal.

    3. Put a new filler cap gasket in. Found some Nitrile and Viton sheet and now I can make all sorts of gaskets and pips for all my stoves.

    4. The lipstick burner was completely carbonized. Brass gauze was caked with carbon so I used acetone to break the carbon down, while brushing it off. Got it clean and bright again.

    5. The lipstick burner jet was blocked by carbon. It was quite difficult to get it clean out. First I tried burning it out. That's not a good thing to do since I almost detached the base of the lipstick. I thought these were silbrazed components but were actually soft-solder on.

    That's it.

    sam
     
    Last edited by a moderator: Jun 27, 2015
  2. Tony Press

    Tony Press Australia Subscriber

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    Aahhh! Thanks for the photo of the silent burner with its cap off. I have the bottom part but not the cap for it, and I want to make one. Your photo is very useful.

    Nice stove!

    Cheers
     
  3. BernieDawg Banned

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    Nice stove there, Sam. And really excellent that you were able to score yourself one of the very rare 4200 silent dampers for the small stoves. :D/ Looks like yours is one of the unnumbered ones.

    The 4200 was the cap I attempted to reproduce when I first started making hand-built caps five years ago. Those efforts led to the Minicap which is still available today as a manufactured cap at the lowest prices ever. Much less than the $75 other vendors charge.
    https://classiccampstoves.com/posts/
     
    Last edited by a moderator: Jul 1, 2015
  4. idahostoveguy

    idahostoveguy R.I.P.

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    Hi Gary,

    I was indeed lucky to get this one and one of your original caps. BD27 is the one I have.

    Thanks,
    sam