Geeky stuff.

This page will lead you easily to articles, texts and posts related to the engineering side of my career.

I will take you through my restoration process of my MG TD and other classics, will introduce verification & authentication methods we use on a daily basis and generally talk mechanics and technical with you :)

I hope you enjoy these articles, if not, here you get back to the pretty photos of mine! :P


Laura Kukuk

The Articles:

The Posts:

Tonight I would like take you back to my previous introduction to material analysis as an authentication method and explain the functionality of the Spectrometer 🔬 • In my previous, technical post (Porsche 911) I have started talking about the materials itself, please read back if you missed it. 📖 This knowledge forms the basis, together with a material analysist to define the decade of production of the material/part itself. Now I would like to talk about HOW the material is analyzed 🌈 • An optical spectrometer (often called spectrometer) is an instrument used to measure properties of light over a specific portion of the electromagnetic spectrum, typically used in spectroscopic analysis to identify materials such as iron, steel and aluminium. Spectrometers show the intensity of light as a function of wavelength or of frequency. The deflection is produced either by refraction in a prism or by diffraction in a diffraction grating 💥• The visible spectrum is the portion of the electromagnetic spectrum that is visible to the human eye. 👀Electromagnetic radiation in this range of wavelengths is called visible light. The spectrum division used by Isaac Newton, in his color wheel, was: red, orange, yellow, green, blue, indigo and violet; a mnemonic for this order is "Roy G. Biv". 🏳️‍🌈 In modern divisions of the spectrum, indigo is often omitted • Because each element leaves its spectral signature in the pattern of lines observed, a spectral analysis can reveal the composition of the object being analyzed, for example the frame of the historical vehicle of concern 💡• In order to be able to take the measurement the part needs to be revealed until its bare metal (check photos in previous post to see the measurements) • Being now able to tell which components the material consists of, combining that with the basic knowledge of iron, steel, aluminium etc. productions and you will be able, together with the help of a material analyst, to tell in which decade the object was produced. Of course this again will help identifying the production year of the car or whether it was previously involved in accidents etc. 🏎💨💨 • For further information / break down ask any time 💯

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Today, I would like to start introducing one of the many methods we use to authenticate a car for its originality 🚘 • In order to authenticate the age and material of a certain part of a car, we helped developing a machine which helps us analyzing the material without destroying the object and on site. The Spectrometer is displayed on fourth picture, second and third show the details. 🔬• The stationary laboratory which has been used over decades, meant that material, the size of a stamp, needed to be removed from the car and send in to be analyzed at the stationary laboratory. Obviously removing material from a car and therefor destroying the structure in a way is not what we should aim for. 🥈• The material analysis helps to break down the the material into its subelements in percentage. Now, if we take steel (iron with less than 4% carbon) as a material example, it has been developed in its production processes over the decades. This means, that depending on the percentage of e.g. carbon, aluminium and phosphor and the usage of other subelements, with these we can identify from which decades the certain piece of material is. 📡• Let’s say we are looking at a frame of a vehicle and would like to identify its production decade and try to match that with the production stamp of the vehicle. In the middle age the blacksmith produced swords and by heating the iron and with mechanical force, the material became much stronger. Due to the mechanical force O (oxygen) was added which chemically connects with C (carbon) and then removed in form of gas as CO and CO2. Only about 4% carbon were left, the invention of steel was fulfilled. End of the 19th century, when the “Tour Eiffel” was being built, a different type of steel was being used, called “Puddelstahl”, a method of steering. Then “Thomas Stahl” (blowing process) and since 1920th the steel production is being leaded by “Siemens Martin Ofen”, which insert oxygen by using recycled materials 🔬 • During the process of removing more and more carbon, elements like Silizium, Aluminium Sulfur and phosphor were also added to avoid the material to be too brital and easier to form 🏎 • Stay tuned for more details! 😊

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Sunday’s are garage days 🔧🔩❤️⚙️🔨 • I have the pleasure, as part of my MG TD restoration project, to overhaul the engine and gearbox at one of the greatest garages around and THE Lancia specialist in Germany: B&F-Touring Garage owned by Peter Bazille. I have nearly finished this project but am just started overhauling a O.S.C.A (Maserati) engine and will take you through both of the restoration processes 💯 • 🔩⚙️The cylinders are the main part of any engine and is where compression and combustion takes place. Let’s show this on my engine, a 2-litre engine has a cylinder cubic capacity equal in volume to 2 litres (0.5 litres per cylinder in a 4-cylinder engine). The mixture, fuel and CO2, is then compressed ready for ignition and combustion within the cylinder. The ratio of compression is another key element in an engine and if it is too high you can create engine knock also known as detonation so this is another thing to factor in when increasing the cylinder capacity of an engine. A cylinder comprises usually a cast iron block but in some engines constructed of aluminium there is a steel liner fitted such as those pioneered by Alfa Romeo. 🔧💡❗️• Stay tuned to follow up my restoration process and look out for my complete story on @petrolicious 👹 • NOTE: the engine is obviously not from the Bentley 🤣 and SORRY for the blank pages once again, I am positive that my disputes with instagram are going to be solved eventually 🙈

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