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xander janssen

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    • xander janssen
      xander janssen replied to the thread Demoiselle boxer twin.
      Great idea, will do that for my 2VD5. Not only very helpfull to check the design, but later also as a gimmic to show the internal...
    • xander janssen
      xander janssen replied to the thread De Industrie 2VD5.
      By shortening the top of the piston by about 10 mm. This will bring the piston pin to about half height of the piston i.e. the piston...
    • xander janssen
      xander janssen replied to the thread De Industrie 2VD5.
      Found out that my cylinders are made from ST52, a easy to machine type of steel 🤪. Had a chat with a lady that knows a lot about...
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    • xander janssen
      xander janssen replied to the thread De Industrie 2VD5.
      The cylinder will stand on the crank housing with a small ridge and above that ridge, there will be a octagonal ring (cut in two pieces)...
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    • xander janssen
      xander janssen replied to the thread De Industrie 2VD5.
      It was cut to length +4 mm (1/6") surplus by the supplier by bandsaw but it is also easily cut manually with a hacksaw, using a fresh...
    • xander janssen
      xander janssen replied to the thread De Industrie 2VD5.
      Richard, I did not find this on the scrap yard, but bought it brand new at a model building shop (costs about 1 Euro/Dollar per cm/half...
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    • xander janssen
      xander janssen replied to the thread De Industrie 2VD5.
      Cylinder liners are finished, apart from a groove/recess to fit it to the crank housing. These will be cut later. Base material is a...
      • 20230121_204048.jpg
    • xander janssen
      xander janssen replied to the thread De Industrie 2VD5.
      Currently designing the core of the engine: - Cylinder liner - Cooling jacket - Cylinder head - Valve Cages Especially the head is...
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    • xander janssen
      xander janssen replied to the thread Head gasket.
      I use this material with great succes. https://www.bengs-modellbau.de/material/dichtelemente/abil-dichtpapier It is a material with a...
    • xander janssen
      Hi all, I have a question regarding a wasted spark scheme i.e. two spark plugs firing at the same time in a two cylinder engine. In...
      • Wasted spark.png
    • xander janssen
      xander janssen replied to the thread PISTON SIZE.
      I overlooked one thing, the liners can indeed start sliding, but with a little change in the part that is called "combustion chamber"...
    • xander janssen
      xander janssen replied to the thread PISTON SIZE.
      I had a look at the drawings and if I m correct, the bond is "only" holding the cooling water inside. All forces due to combustion are...
    • xander janssen
      xander janssen replied to the thread De Industrie 2VD5.
      Started the design work by: - Choosing the scale ratio based on 25mm bore. - Printing all drawings in right scale on mm-grid paper -...
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    • xander janssen
      Improvement---engine is firing randomly. This is definitely an improvement over not firing at all. Relapping the intake valve has helped...
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