The Russian engines D-4,D-5,D-6,D-8. History.

Discussion in '2 Stroke Bicycle Engines & Kits' started by Dagger, Mar 19, 2009.

  1. Степан

    Степан New Member

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    And-Tell me where there is such schemes? -http://s001.radikal.ru/i196/1401/2e/e1755e50732b.jpg
     
  2. Jumpa

    Jumpa New Member

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    what a beautiful lab!!!
     
  3. Jumpa

    Jumpa New Member

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    dAGGER i WENT THROUGH WHAT i THINK WERE ALL YOU PHOTO'S "GRRRR darmn cap lock"

    Are the forks on the brand new looking blue bike in the bike shop the ones you were working on with the paint brush ? They look the same. If so thats a very VERY impressive restoration job!

    Also whats that stuff your putting on them with the brush some kind of polyurethane
     
  4. bluegoatwoods

    bluegoatwoods New Member

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    Super interesting thread. Looks like it's been dormant for a while. I only came across it because it was linked in another thread.

    But this is the first up close look I've had at the old Russian "D" series engines. Nice looking stuff.
     
  5. Klim Chugunkin

    Klim Chugunkin New Member

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    Is D-series engine really superior to modern chinese analogs(copies)? Manual of original D8 engine says about 1.1 hp at 5000 rpm using A-76 soviet era petrol. Possibly, chinese manufacturers make some changes to increase output (I've never had one). Production quality of original motors also raises doubts. I think, only some antiques collector may be interested in things of this sort. cvlt1
     
    #185 Klim Chugunkin, Dec 10, 2014
    Last edited: Dec 10, 2014
  6. Dan

    Dan Staff
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    Howdy Klim. Welcome to the forum.

    Buried in this thread, some where, I researched and found one company still make the motors. But they are used for pumps now. I would love to have one. This was at least 2 years ago and they would cost around $300 USD to get to the U.S. Big bummer.

    But again, welcome and glad to see you.
     
  7. bluegoatwoods

    bluegoatwoods New Member

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    Klim does bring up one good point. Welcome aboard, by the way, Klim.

    Can we be sure that the Soviet era D series engines were of a higher quality than the current Chinese copies?

    (I can hear it now......."How could they be worse?") :)

    I really like the look of the D series. But, in truth, it doesn't exactly look like a Rolls-Royce engine.
     
  8. Dan

    Dan Staff
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    Har, lol! "How could they be worse?"

    Really did. Was putting a cough drop in my mouth and went "pFFFEFTH" and spit on it laughing.

    I bet "cough drops" do not translate well using google to any other language. And would cause the question; "It is a drop of cough, and you put this in your mouth?"
     
  9. Klim Chugunkin

    Klim Chugunkin New Member

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    Hello, guys, thanks for welcoming me... ;)
    "Krasny Oktiabr" (Red October, http://koavia.com/e_index.htm) was big Soviet concern (as you already possibly know), situated in Leningrad (St. Petersburg now), that produced throughout its history wide range of machinery (mainly military) - aircraft, helicopter, tank, tractor engines and parts, swashplates, surface-to-air missiles etc. The plant that made D-engines is its consumer branch and situated in backwater town of Borovichi. I can not even find their website in RuNet - only address and phone numbers. See some photos (were found in one russian forum) – made year or more ago, everything looks rather dilapidated. Most likely the plant has long ago gone bankrupt. Or makes some secondary components for parent company. Another non-military subsidiary exists until now - "Krasny Oktiabr - Neva"(someone has mentioned it in this thread), produces tillers utilizing imported engines (Honda, Briggs&Stratton etc.) as powerplant. It was common practice for big military soviet enterprises to have some consumer production.

    My doubts concerning quality ensue from knowledge that by 1980-90ies manufacturing and discipline standards had gone pretty slack at least in soviet civil production lines. Circa 1991, being schoolboy, your humble servant got job as apprentice in the enterprise, manufacturing fighter turbofan as main product. Civil branch, where he was employed made high performance tiller engines (output 5 hp, weight over 50 kilograms :D). Patriotic youth as he was, he had all possibilities to observe that favorite pastimes of line staff during dinner breaks were drinking (cough drops :D) technical grade alcohol and stealing pistons, which abovementioned high-end tiller engine shared with some ubiquitous automotive one.
    By the way, turbofan line still exists (under defence ministry protection), tiller line was closed (I suspect Honda Co had a finger in the pie, eliminating dangerous competitor :D).
     

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  10. Fanaticcc

    Fanaticcc New Member

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    Hi!
    Can someone help me to find out with model of KO i have!
     

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  11. omich

    omich New Member

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    It's seems like D6 engine, because the high voltage wire exits the ignition chamber.
    In general, all of D engine I made a good ignition voltage converter and the ability to get a powerful light. About all this is on the site wagnerland.ru, which was mentioned in the same topic before.
     
    #191 omich, Nov 3, 2015
    Last edited: Nov 4, 2015
  12. veteran

    veteran New Member

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  13. Robjo78

    Robjo78 New Member

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    Where can i find rebuild kit for this
     

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  14. veteran

    veteran New Member

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  15. Fanaticcc

    Fanaticcc New Member

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    Hi Veteran! tanx for answer. I need capacitor, Ignitioncoil, and clutchparts to fix cluch, Piston+pistonrings. Any idea where to find? or someone here that have?? To this Engine......
    Nicke
     

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    #195 Fanaticcc, Feb 15, 2017
    Last edited: Feb 15, 2017
  16. Fanaticcc

    Fanaticcc New Member

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    even exhaust pipe and parts for elecrtic system
     
  17. Robjo78

    Robjo78 New Member

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    Where is a site i can get rebuild one these motor KO D8E engine
     
  18. veteran

    veteran New Member

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    Hello Nicke.
    There is a good Russian site, where you can find full information on repair engines D.

    http://www.wagnerland.ru/index.php?board=52.0

    In practice, it is best to buy a donor.

    https://www.olx.ua/obyavlenie/prodam-motor-d-8e-novyy-na-dyrchik-IDqjY9Q.html#16c6173f35

    You need to know the options of sending parcels to the Ukraine in the USA

    Many owners of motor "A" practice installation of electronic ignition,
    https://www.olx.ua/obyavlenie/elekt...iga-5-7-11-13-dyrchik-IDiT2QC.html#16c6173f35

    [​IMG]

    [​IMG]



    and can be easily installed on the ignition of the Chinese F-50 (80).

    [​IMG]

    Motor D-8E is different from the motor D-8M presence of external ignition coil.

    https://www.olx.ua/obyavlenie/prodam-motor-d-8e-novyy-na-dyrchik-IDqjY9Q.html#16c6173f35

    I am a supporter of D-6, as they Balanced crankshaft, and the D-8 is not balanced at the factory.

    https://www.olx.ua/obyavlenie/prodam-motor-d-6-na-dyrchik-IDq9Rdu.html#87794ebd2c
     

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