MZ HB 250 - early 70s East German 2-stroke air/water cooled racing motorcycle

Рет қаралды 18,923

goran2003

Күн бұрын

Пікірлер: 33

@pascalperes7349 Ай бұрын

Merci Goran2003, toujours un plaisir tes vidéos.

@goran2003 Ай бұрын

Cheers Pascal. Have a nice weekend!

@deancerne1275 Ай бұрын

Top!

@goran2003 Ай бұрын

MZ za sva vremena!

@giorgiodoria1031 Ай бұрын

Bella bellissima 2 T tutta la vita 😢😢😢

@goran2003 Ай бұрын

2-strokers are still alive ... if you know where to look for them. Cheers Giorgio!

@watanabeisamu1461 Ай бұрын

東ドイツ🇩🇪製空冷式2サイクルエンジンは初めて見ました、素晴らしい映像を有難うございます♪JAPAN TOKYO👍💯❤️🧑🏻‍🔧

@goran2003 Ай бұрын

Cylinder is water cooled, cylinder head is air cooled. Cheers Watanabe!

@surak1841 Ай бұрын

It's where Suzuki got their 2 stroke technology from.

@josvandencamp8441 Ай бұрын

I remember them race. They could beat the western bikes.

@rennopa Ай бұрын

Eine der wenigen HB mit Auspuff nach hinten ( wie MZ RE ) im Junghans Fahrgestell , quasi Serienmotor MZ Es ( GS ) auf Drehschieber und mit Thermosiphon Kühlung umgebaut ( getunt) also von 18 auf 38 bis41 Ps gebracht. Es fuhr in der DDR zuletzt Andreas Mikoschiak + nun sein Mechaniker Zwick

@goran2003 Ай бұрын

From 18 to 41 HP ... how did the crankshaft hold up? And I can ask the same about the gearbox...

@rennopa Ай бұрын

War vieles umgebaut aus Serienteilen und eigene Anfertigungen KW grösserer Spiel im unteren Pleullager auf Ina Lager zum Teil umgerüstet über diese Umbauten könnte man einen 2 Stunden Film drehen !! Meine hat zum Beispiel eine umgebaute Waschmaschinen Laugenpumpe als Wasserpumpe angetrieben über die Abtribswelle zum Ritzel .

@goran2003 Ай бұрын

@@rennopa I would love to see it live ... and the movie would also be worth talking about 🙂 Thank you!

@truthboomertruthbomber5125 Ай бұрын

It’s crazy how much effort the factories put into resisting taking full advantage of liquid cooling. There are no upsides to having an air cooled head and water cooled cyl. Weigh an air cooled head and weigh a water cooled head. Add a few ounces of water and voila, more power, better reliability and less weight.

@goran2003 Ай бұрын

Who knows what their reasons were for such a setup ...

@rennopa Ай бұрын

Das ist nicht ein Werkszylinter sondern Eigenbau entwickelt von Hartmut Bischoff ( Weinböhla Dresden DDR ) Motor MZ GS Eigenbau Wasserzylinder Umbau auf Drehschieber einer der 3 Zylinder mit Auspuff nach hinten ,Motorrad zuletzt von meinen Motorsport Freund A Mikoschiak bis 1990 gefahren .

@goran2003 Ай бұрын

@@rennopa Thank you ... excellent info!

@1cornerleft-4 Ай бұрын

Eventually also no water pump drag. The boiled water is forced into the radiator cooling down, and pushed forward into the engine by the boiled water, completing the cycle.

@truthboomertruthbomber5125 Ай бұрын

@@1cornerleft-4 the recommended operating temperature for a water cooled racing 2 stroke is 160* F which means the thermosiphon concept is fatally flawed.