My old Optimus 8 variants

Discussion in 'Stove Forum' started by hikerduane, Feb 2, 2017.

  1. OMC

    OMC United States Subscriber

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    Hello again Duane,
    Enjoy your camping we'll catchup later.
    Again your input is key here, having the many examples in-hand.

    Sorry I've missed some. "I think" we can get list 1.1 updated to accommodate different versions you're mentioning, if you're up for it. I hope so. In OP you said 8 variants but included an 8R and an aluminum 8. If so my 6 was getting close I thought (there I go thinking again! :oops:).

    It's a discussion and a tentative list
    I welcome input and am open
    to see where it goes.

    The next list I can add to each:
    fuel enters brnr at bottom
    vs
    fuel enters brnr at side.

    Ideally each different "version" represents a specific combination of parts that is repeated on many examples.

    I did not factor the aluminum or plated examples.
    That said I too am aware of at least 4 that do not fit into the list (not all examples will fit into such list).
    The 4 I'm aware of are different but may not represent a different version (i didn't think so but it's a work in progress).

    Re maybe the earliest version did not have burner brkt?
    Here is a zoom-in of whitegas's no.8 case:

    oldest.JPG

    Are you thinking we should add that? Are there others w/o that brkt I wonder.
    all for now
    thx omc
    tag @hikerduane
     
    Last edited: Mar 29, 2018
  2. Simes

    Simes R.I.P.

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    @hikerduane. You wouldn't happen to have a list.of those versions that actually work would you? :(
     
  3. hikerduane

    hikerduane Subscriber

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    ALL my stoves work.
    Just realized over the winter that my early 8's have minor differences, either no clip, w/clip or different fuel cap, one seems to ha e a much later cap. The one doesnt have a clip to hold the burner in place when stored like @OMC, pointed out from the Gallery. Even my aluminum-cased 8 has the pedestal burner and one type of the early fuel cap.
    Duane

    IMG_4598.JPG

    IMG_4599.JPG

    IMG_4601.JPG

    IMG_4600.JPG

    IMG_4603.JPG
     
  4. OMC

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    Thanks Duane,
    I'm a patient man, picking this up later is fine.
    I'm jealous and wish I were packing up for camping. Big family, never a dull moment here it seems. Aside from one on one time, I think I'd prefer more dull moments! I'm booked tomorrow night and Easter so my cousin & crew invited themselves to visit me and stay over Sat. night (eat, drink and sing so not half bad).

    Ok, w/o brkt... that is at least 2 so far (we're saying it is not that the bracket is knocked off), and we will add that the earliest is w/o burner bracket.
    Got it, good.

    In meanwhile, a couple tidbits:
    > Iani (Jan.2012 or earlier) shared this type pot support brackets on a No.8, he posted here
    potsupportmount.jpg
    I wish he included a view from the outside of that case as well.
    That example is convincing as done during early No.8 production. For now (if it is one) will be noted as addendum to the list.
    Duane (or anyone) aware of another No.8 w/those brackets?
    -----

    > The stove below does not exist, to-date. The image was used and re-used for decade(s) by Optimus ](*,).
    early8ghost.JPG
    From what I've seen, this No.8 (w/ a tank & a key we've never seen)
    never made it into production, imo.
    If one ever does emerge it's the holy grail of No.8s!! (until then this ghost image is just here to haunt us! :lol:. I am aware of at least 1 other Optimus catalog ghost stove btw so they were content w/inaccuracies just to mess with us :content: the basteges).
    thx omc
    tag @hikerduane
     
    Last edited: Mar 29, 2018
  5. hikerduane

    hikerduane Subscriber

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    I think/thought Ross posted one too a few years ago, never seen one anywhere.
    Duane
     
  6. whitegas

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    Wow! I am just checking in after a long hiatus and found this monster I created. The model I first posted did not have the burner bracket and no indication/ marks of it ever existing. The other difference I see would be the nickel tank. Looks like you have since also found a no bracket version. As is the case with the 111, the brackets evolved over time, so none would point to the earliest version
    Jim
     
  7. Tantra

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    Yes I agree with you point
    I am attentions that tank lid in the left not in the middle
    I am look for and not found anything photo
    Here are ghosts first Optimus No.8
     
  8. Tantra

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    5825C5CE-5DB0-4BDA-8574-59F26E569DBD.jpeg BC064428-FCD7-466B-B5FF-CAB37B7094AE.jpeg
    First type of No.8?
    I feel the box is dark green color before
     
  9. shueilung.2008

    shueilung.2008 Subscriber

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    @Tantra

    If it has this connection burner-tank

    [​IMG]
    Image Credit BernieDaw

    plus the this of SRV, sure is the first model.

    [​IMG]
    Image Credit BernieDaw

    Look here: Optimus 8

    Enrique
     
  10. Tantra

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    Yes all fit for the photo
    Maybe I should look for nickel tank too
     
  11. shueilung.2008

    shueilung.2008 Subscriber

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    @Tantra

    You have one of the first models of Optimus #8 (if not the first).

    Congratulations

    Enrique
     
  12. OMC

    OMC United States Subscriber

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    Congrats Tantra,
    Credit Duane for latest details (1st version has no burner bracket).
    This discussion (in Stove Forum) developed into a comprehensive detailed list. i just posted the confirmed details in reference section:
    "Early No.8 chronology ver. 1.2 " link

    The list (the updated ver. 1.2 list, seen in link) is in agreement with you. Yours is a match to the first version:
    > Ver. 1.0 c.1933/34 as seen in whitegas post,
    "OPTIMUS" closest to hinge,
    it does not have Reg#,
    it does not have burner bracket,
    it has the earliest flat tank lid early 298C & early 370A key and
    fuel enters the bottom of burner.
     
    Last edited: Aug 26, 2020
  13. OMC

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    @Tantra
    Ok, onto your next No.8 example (Ver.3.1?).
    re your: "I have a Optimus No.8 same as V.3.1 as knight
    ... The box have registered number and Rivets
    Inside the box there are burner brackets
    Later 298 C tank lids
    Fuel into the side of burner
    " source

    In this instance
    A. i suggest "discussion" happen here in Stove Forum, not in Reference Section (where I copied your comment from).
    No worries, I myself should have ended my No.8 reference post with comment:
    "Please direct Q&A and comments to Stove Forum here -LINK- "
    (link to this thread).

    B. So, might we please continue your Ver.3.1 No.8 Q&A, chat etc. here.
    One reason I suggest this is you're thinking you may have an (unconfirmed) Ver. 3.1 from list... which is an interesting "discussion" to have. We may want to double check the findings before posting it in reference section (reference section, per site design, not for Q & A, chat, etc.)

    C.THANK YOU. I enjoy your posts. Please do continue it will be great if we might add more No.8 examples or to further confirm details (or to question details posted in 1.2 list).
     
    Last edited: Aug 26, 2020
  14. Tantra

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    93F7C096-F5A2-461D-BB7C-CF981B490C60.jpeg C8E1C6EB-E55F-4A2E-B377-7EDC58CE02C8.jpeg 94A34D40-E950-4AFD-B6C9-C7CFE43FFB4A.jpeg 87F0E5E2-3075-48C8-B68E-2BA95F4B9728.jpeg I have many Optimus No.8 and I try to track his history
    Here are V1.2 right ?
     
  15. OMC

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    re "I have many Optimus No.8"
    Lucky you, congrats. We will like to see more.

    You know, as i reread the thread I suspected I may cause confusion w/ ** ver. 1.2 and
    here we are. Sorry.

    re my ver.1.2, the list is
    "Early No.8 chronology ver. 1.2 " link

    Your stove, shown a few times in a few posts is a match to listed example:
    > Ver. 1.0 c.1933/34 as seen in whitegas post, ...
    --------------------------------------------------------------

    All,
    ** In hindsight I should not refer to the list AND the stoves by "Ver. 1._".
    IF there's another list maybe Optimus No.8 chronology rev. 2.0 ?
    or rel. 2.0 ? or ___ ? What do you think?
    thx
    @Tantra
     
  16. Tantra

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    I hope I can got a Nickel tank V1.0
    I guess V1.0 have brass and Nickel tank too
    I love No.8
    He brings me any possible
    I Like change and rebuild 8R too
    Change to multiple fuel triple fuel or silent
    No.8 is good base and unlimited possible
     
  17. OMC

    OMC United States Subscriber

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    BUMP in stove forum, place for Q&A / discussion etc.

    Re OP credit Duane for the idea and to get the ball rolling with his extensive collection.
    I've made a best effort to sequence the No.8 and from above details have posted an updated list:
    rel. 1.3 of Sep 7, 2020 (read on). The 1.3 list is the latest and incorporated the rivet detail (credit Tantra).
    -------------------------------------------
    Meanwhile more detail for the aluminum case examples has come to light. Eventually that aspect needs to be revisited (such parallel comments are welcome here, we can multi-task).
    ---------------------------------------------

    AND TODAY , a FIRST,
    a No.8 in new rounded metal case that does not have "8" stamped into lid. His is an example that we had not yet seen, credit @Albatross :clap:.

    I will not offer my "logical explanation" (logic is a method for one to arrive at a wrong conclusion with confidence! :oops: )

    Here it is:
    [​IMG]

    [​IMG]

    With his addition there are now TWO versions of No.8 in "new rounded case", sooooo....
    the rel. 1.3 list I collated & developed, the list needs more updating, particularly the Ver. 7.0 line item:

    > Ver. 7.0 c. 1956/57 may be the last version of the No. 8. As seen in hikerduane post first use of the new rounded case w/embossed "8" on top and tank lid 298D.
    -end- -"No.8" -
    -------------------------------------

    First,
    A CORRECTION: credit metropolitantrout, kerophile, optipri and Ross ie per his "I have pricelists from 1958 & 1963 for the 1700 catalogue. I put this one at the earlier end due to the old No:8 being in this edition." <--For me, indicative 8R is not yet incl. in '58 price list.

    SO that UPDATE also needed to No.8 list, update is a WIP:
    prev. > Ver. 7.0 c. 1956/57 may be the last version of the No. 8...
    updated: Ver. 7._ c. 1956? - 58* ....
    *optipri "The 8R stove was most likely introduced in 1959."
    ---------------------------------------

    Albatross addition is worthy of discussion, imo.
    Is the No.8 now in two versions of "new rounded case"
    - a new rounded case without an "8" stamped into lid (seen above, one & only to-date)
    and
    - a new rounded case with the "8" stamped into lid, many examples.

    As much as I "want" to, I won't presume the one "without an 8" came 1st :-k but wouldn't it?
    and
    might it possibly be an anomaly, an isolated lapse during production? I tend to think not, that it will be confirmed with addl. example(s) emerging BUT
    it "could be" an anomaly.
    As for updating list, to effectively incorporate this one into the list maybe (for now) it is an added anomaly?
    ------------------------------------------------

    FYI re the 8RF seen in 1956 and 1957/58 catalogs... the 8R_ pages are inserts added later.
    8F, F for fornicklad (nickel-plated)
    and the introduction of NEW 8R / 8RF
    "8RF ...NY brännare med automatisk rensning och avstãngning. Lät reglerbar"
    8RF NEW burner with automatic cleaning and shutdown. Easily adjustable

    and i gotta run. 3850 views
     
    Last edited: Jan 26, 2021
  18. OMC

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    bump discussion
    all of the above pertains to, the end result:
    " Versions of No.8, chronology rel. 1.3, 7 examples (so far): " [Ver. 1.0 thru 7.0 ]
    as of yesterday I note there are now THREE updates/corrections that have emerged in the meanwhile.
    Each new detail needs to be best defined, integrated into the list and double-checked.

    The THREE details:
    > approx dating best effort for last 8, first 8R, from just above:
    " SO that UPDATE also needed to No.8 list, update is a WIP:
    prev. > Ver. 7.0 c. 1956/57 may be the last version of the No. 8...
    updated: Ver. 7._ c. 1956? - 58* ....
    *optipri "The 8R stove was most likely introduced in 1959." "

    > from just above: " Albatross addition is worthy of discussion, imo.
    Is the No.8 now in two versions of "new rounded case"
    - a new rounded case without an "8" stamped into lid (seen above, one & only to-date) "
    Significant difference but it is just the one stamped digit, with only one example so far, one might consider Albatross's 8 a Ver. 7.0 with an anomaly ?

    > The most recent revelation is within Duane's post Optimus greenies , the one on the left (rounded case) appears to be " ...the last "8" burner before the 8R " . His burner has thinner fuel inlet and it is offset (vs centered):
    DuaneGreeniesClose.jpg and there she is on the left. Ver. 8.0, new addition to list. "I think" this is very rare but it also may be (it happens) NOW that we know what to look for, more might emerge. For now i'm aware of Duane's one & only.

    For context I'll backtrack to prev. version, also Duane's, less rare Ver. 7.0. It has an "8" burner, with thicker fuel inlet, centered, in the same rounded case.
    Duane7.0.JPG
    -----------

    NOW, onto what looks to be a new addition to the list,
    Ver. 8.0.
    Note fuel inlet enters tank offset vs centered:
    DuaneGreenies1.jpg This means different (rare) last "8" burner and different tank (offset fuel inlet).

    The heat shields illustrate this same offset. Different/offset heat shield (vs all prev. 8s).
    DuaneGreenies2.jpg

    There we are ^^^, updated details. At some point I hope to "... best define these latest details, integrate into the list, double-check the draft then post "Rel. 2.0" of list into reference section. btw the list , Rel. 1.3 in subscriber/catalog reference section.
    -----------
    On-topic corrections, comments, Q&A/discussion are welcome here. All for now, thx.
    4525 views
     
    Last edited: Aug 18, 2022
  19. Tantra

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    My friend, I have nickel tank No.8 too and I check it on your link it’s 100 percent same V 1.0,later I take photo post
    I burn it I found the flame more powerful more crazy hot,the brass ring all read,and pot support is red,pot support steel was hot and lost
    oxidation skin.......I believe it
     
  20. OMC

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    congrats on scoring earliest 8 and glad to hear from you again here.
    re "...pot support is red, pot support steel was hot and lost oxidation skin..."

    pot supports on several 8Rs & 111s here have failed (as they do) and had been heated cherry red many times over. If one can avoid rust, then the pot supports may be weak link for stove(s).
    I see thin and weak supports from metal scaling (lost skin as you say).
    Same failure happens on 8s and 11s i presume.
    Myself, i've not replaced any of the supports yet.