1953 Primus No.96 resurrection.

Discussion in 'Fettling Forum' started by kerophile, Oct 13, 2014.

  1. kerophile

    kerophile United Kingdom SotM Winner Subscriber

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    Hi, NOTE TO SELF: DO NOT BUY SPARES OR REPAIR STOVES.

    I bought a couple of No.96 size part-stoves for spares or repair. The seller had interchanged the lipsticks and spirit-cups, but everyone loves a challenge:


    Today I tackled the Pr.96, W Coded, so made in 1953

    This stove had probably suffered from a fireball, resulting in disassembly. When the solder melted it fell to bits!

    Someone had carried out crude repairs using plumbers solder, spread with a bread knife.

    1413224468-Two_96s-2.JPG 1413224480-Two_96s-3.JPG

    I had to break it down into its component parts, before I could re-build it. Here are some photos:

    1413224654-Pr.96-6.jpg 1413224664-Pr.96-7.jpg 1413224673-Pr.96-1.jpg 1413224682-Pr.96-2.jpg 1413224691-Pr.96-3.jpg 1413224701-Pr.96-4.jpg 1413224710-Pr.96-5.jpg

    I removed as much of the excess solder as possible, replaced all seals and washers, re-tinned mating surfaces and then re-build the stove:

    1413224727-Pr.96-8.jpg 1413224736-Pr.96-9.jpg 1413224747-Pr.96-10.jpg 1413224761-Pr.96-11.jpg 1413224772-Pr.96-12.jpg 1413224780-Pr.96-13.jpg 1413224790-Pr.96-14.jpg

    It seemed that every orifice of this stove had leaked. Eventually, after pressure testing, and immersion in a bucket of water, I was satisfied that I had cured all the leaks. I added a sound lipstick and burner assemble, fuelled the stove, and got it fired up:

    1413224800-Pr.96-15.jpg 1413224811-Pr.96-16.jpg 1413224822-Pr.96-17.jpg 1413224830-Pr.96-18.jpg

    Best Regards,
    Kerophile.
     
    Last edited by a moderator: Jun 26, 2015
  2. kerophile

    kerophile United Kingdom SotM Winner Subscriber

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    Here are another couple of flame shots taken after the stove passed the "Tea Test":
    1413225815-Pr.96-19.jpg

    1413225826-Pr.96-20.jpg

    Best Regards,
    Kerophile.
     
    Last edited by a moderator: Jun 26, 2015
  3. sefaudi

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    Outstanding fettle Mate.
    Thanks for sharing.
     
  4. Tony Press

    Tony Press Australia Subscriber

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    Excellent!
     
  5. kerry460

    kerry460 Australia R.I.P.

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    very nice , it lives again !!!
    well done .
    cheers,
    kerry
     
  6. presscall

    presscall United Kingdom PotY Winner SotM Winner SotY Winner Subscriber

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    Great job George.

    John
     
  7. Dutch_Peter

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    Hi Kerophile,

    Wow that's a masters' fettle, first class job :thumbup:

    Cheers,
    Peter
     
  8. Simes

    Simes R.I.P.

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    :clap:

    It is a nice feeling to get a derelict back together again. My Turm is repaying the brief (several hours plus) TLC and I've a few stoves , not quite as bad as your 96, that need my valuable time. :oops:

    The 38 was a good training course for simple soldering, something I'll use in the future.

    I know I've been away from the forum for a while, but are there any help files for dismantling beyond the simple soldered attachments, ie the bottom of a 96 etc tank?

    Simes

    ps, it's a real bugger to de tin the brass isn't it. :-k
     
  9. 1966dave

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    So I have to ask...what is in the bottle? I doubt its propane....so Mapp?



    Dave
     
  10. kerophile

    kerophile United Kingdom SotM Winner Subscriber

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    Hi Dave, it is 100% propane.
    Best Regards,
    Kerophile.
     
  11. kerophile

    kerophile United Kingdom SotM Winner Subscriber

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    Hi Simes, You can tidy up the solder joint on a tank base but of course you cannot remove and replace a base without esentially destroying the stove. The tank top-to-base is mechanicallly rolled on manufacture and the solder joint forms the hermetic seal and adds to the strength of the joint.

    Here are some links to practical soldering:

    Replacing stove legs and feet:

    https://classiccampstoves.com/threads/re-soldering-stove-legs.4525/#post-36354

    https://classiccampstoves.com/threads/11425

    Pump tube removal and replacement:
    https://classiccampstoves.com/threads/pump-tube-soldering.4071/#post-30605

    https://classiccampstoves.com/threads/6371

    https://classiccampstoves.com/posts/193583

    https://classiccampstoves.com/posts/107272

    Masking off areas in soldering:

    https://classiccampstoves.com/posts/97366

    Removing excess solder after a soldering job:

    https://classiccampstoves.com/posts/118288

    Get a soldering hearth:

    https://classiccampstoves.com/posts/237663

    Best Regards,
    Kerophile.
     
    Last edited by a moderator: Jan 5, 2016
  12. Simes

    Simes R.I.P.

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    Thanks for the links George.

    The pump tube replacement ones will definitely come in handy, I had read about the toothpaste trick on here a while ago, and wish I had known about before I very nearly tinned a complete fount top. :doh:

    I suspect doing other jobs I'll have to make use of the leg replacement ones as well. :lol:

    I've used both a damp sponge and a wire wool ball to take molten solder off which I've found really just leaves a tinned surface. With the Turm my next job will be to gradually rub down the tinning. I have quite a bit of fine wet/dry paper for car paint work which will comes in handy.

    The soldering hearth solution is quite neat, At the moment I'm using a small piece of asbestos sheet which was the heat pad from an old ironing board. Something to bear in mind on my next recycling trip :-$

    Regards

    Simes
     
  13. shagratork

    shagratork United Kingdom Moderator, R.I.P. Subscriber

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    Good grief, George!
    I would not have even attempted the fettle.

    Great fettle and great tutorial. :D
     
  14. 1966dave

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    Hmmm..


    I must revisit a thread I read once...I thought propane wasnt hot enough...


    ...so much to learn...


    Dave
     
  15. Celsius233

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    Hi.
    I'm amazed about how you keep all the parts soldered while heating one in particular.
    Great work of soldering skills and thanks for the class.

    Best regards.
    Héctor.
     
  16. kerophile

    kerophile United Kingdom SotM Winner Subscriber

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    Hi Hector. A liitle practice and some common sense is all that is needed.

    1. You must have a good torch, with a narrow flame, that allows you to focus on the area you want to heat.

    2. You need to raise the temperature of the area you want to solder, in a controlled way by applying heat, testing if the solder has melted, and if not applying a little more heat, until you get a result.

    3. Home repairs were often done with Plumbers solder which does not all melt at a fixed temperature, but instead goes through a pasty stage, at which time the solder can be wire-brushed off a surface, or a part detached from the stove.

    4. Adjoining areas can be protected from some of the heat by wiring wet tissues or rags to the areas you want to protect. Wet tissues can also be inserted into pump tubes. You can also apply aluminium foil to feet to shield from direct torch flames.

    5. Make sure that all surfaces to be soldered are well prepared, fluxed, and tinned before attempting soldering attachments.

    6. If you use solder-cored electricians solder for repairs, this has two advantages: It melts at a fixed temperature rather than going through a pasty stage. Secondly it melts and then freezes at a slightly lower temperature than plumbers solder.

    7. Practice on an old stove tank, or with scraps of brass sheet to improve your skills, before attempting soldering work on a prized stove.

    Best Regards,
    Kerophile.
     
  17. Jim Ashton

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    Use Killed spirits (hydrochloric acid with as much zinc as possible dissolve in it) as flux to tin the brass, but wash it off well when the work is finished!



    Jim.
     
  18. Greeley

    Greeley United States Subscriber

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    Well done, and then some!
     
  19. IvanN

    IvanN United States Subscriber

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    beauty job! you are the master, I am the padawan.
    Ivan
     
  20. MrAlexxx SotM Winner

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    Wow! That's it.