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Trabant Motor Thermodynamics

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Re: Trabant Motor Thermodynamics #16
Venci-002 Venceslaff Maslaroff Varna, Bulgaria Sign in to contact	Jan 16, 2022 08:13 AM Joined 4 years ago 15 Posts

Congratulations for the good posting,dear Keri.I have a little remark about it.The two stroke engines are thermically more tense;exhausting in them is faster,but the average temperature in their cylinder is higher.A confirmation of this fact is the thermal index of Trabant`s ignition candles - 225,rather 175 of Moskvich 408`s and Skoda 120`s ones.
You are totally right about the lack of temperature indication;there is not need of it since Trabant has not thermostat,has not water witch could leak out,so it can never be overheated if driven literately.You have only to watch out for the red lamp in the speedometer,so the driving belt to not be torn.
About the temperature - I read somewhere that the Trabant`s engine temperature is about 120 degrees Celsium during hot summer and climbing up hill;Wartburg`s spark candles have higher thermal index(240 I think) than Trabant`s ones,it states that this temperature is correct.We can conclure that the engine`s temperature is about 120 degrees in hot summer and about 80 degrees in raw winter,so the lack of thermostat in the cooling system is not so bad;Trabant is a very simplified mashine.

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Re: Trabant Motor Thermodynamics #17
Venci-002 Venceslaff Maslaroff Varna, Bulgaria Sign in to contact	Jan 16, 2022 08:29 AM Joined 4 years ago 15 Posts

In reply to # 5378 by vdubbin Hi Folks, interesting topic. Though I'd bump this rather start a new topic. I've just been advised by the car's previous keeper (we're in regular email contact, he's a buddy of mine) not to run the heating at full blast, as this will cause the engine to overheat. This is contrary to pretty much everything I know about engine cooling (mainly watercooled, I'll admit) so we're puttingit down to that special Trabi voodoo.

Has anyone else heard of this? Is there a combination of those 3 plungers I should avoid using in case of doing harm?

There is no matter whether you have put the heating on or off and how much you have put it.The warm air,driven trought the silencer and the exhaust manifold,is thrown in the atmosphere in one case and towarded to the passengers` compartiment in the other one.He wanted to advise may be that the silencer would get pierced if you gets the pipes for heating out even if you live at a tropical climate;it would get overheated in that case,and pierced consequently.The exhaust manifold also suffers if there is not air running in it.