Jena 1cc model diesel rebuild project

ENA Motor 1cc Version II

Technical data:

Model JENA 1 Version II Manufacturer VEB Carl Zeiss, Jena, DDR Distributed VEB Carl Zeiss, Jena, DDR Series / Serial No. s / n Year of manufacture 1960 Displacement 0.99 cc (0.060 cu. In.) Diameter 10.7 mm. (0.421 in.) Career 11.0 mm. (0.433 in.) Power class Diesel Time 2 Type of carburetor Fixed (no speed control) Admission Subpistón (side port) Inner bearing In Front Outdoor BeIfaring In Front Crankshaft to crankcase In Front Crankshaft on bronze NA Fuel Ether / Petroleum / Oil Condition Poor Comments Motor built by Carl Zeiss optics manufacturer.This model is characterized by the admission subpistón (piston skirt serves as a valve). It also has ball-bearing crankshaft and radial transfer.

 This example is equipped with a spring starter, the users manual and the box which it came from as purchased new.

 All models of the Jena line of model engines are sold in boxes resembling the one pictured below.

It is very difficult to acquire a perfect example of this rare engine; even the one from my collection has some nasty looking scuff marks on the rear crank case cover.

 Below are shown the other Jena engines in my collection.

 This story is about the rebuild of my friend Jose's engine that on inspection has a lot of problems: a broken crank shaft at the output shaft; excessive play; piston not moving freely and poor compression.

 Below is shown on top my running engine and below Jose's rebuild basket case.

End of Preview
Review the eBook

Jena 1 cc model diesel rebuild project