Saturday, August 22, 2020

Ferrari 166 MM Barchetta: Engine and chassis

The engine and chassis are about done.



The V12 has distributors at the front, mounted vertically, unlike the Berlinetta where they are mounted horizontally. This time I put wires in the heads, not the distributors, as the spark plugs, located on the inlet side of the heads, are essentially inaccessible once the carburettors are in.




I ran the wires without the little tube that Ferrari uses to keep them tidy, as I don't see how it can be done to scale even with 0.014" wires as supplied in the kit.



The chassis is a simple ladder frame with leaf springs front and rear. Up front it's a single transverse unit running under the chassis, while the rear has a solid axle on semi-elliptics. The springs are assembled from photoetched parts which ought to be painted, but I like leaving them as is to show the assembly.



Steering is a worm and sector or equivalent. Overall the chassis is pretty standard for the day, and the Le Mans win was due to the power and reliability of the modern motor with essential equal bore and stroke. This compares well with the competition, largely made up of pre-war long stroke devices.



Primer is on the body, so stay tuned.

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