Lambda in diesel engines

I am rehearsing an internal diesel-type combustion engine, manufactured in Germany in 1959 Motorenwerkemannheim AG brand, type AKD4-12V which delivers a nominal power of 31 kW (42ℎP), maximum speed set of 1800 rpm and has 4 cylinders ... From the measurements of air and fuel consumption I obtain factors Lambda factors of about 8 erring in something?

The Lambda factor determines the air/fuel relationship, on the one hand the mass of airpired air in grams and on the other the injected fuel, also in weight, this relationship is considered ideal for a complete combustion when it is achieved that the parts are, in the case of a 14.5 airpired diesel aspirated by 1 of fuel, when this happens we are in the presence of a stoist relationship, Ideal situation for a correct but unlikely combustion in an MWM of 59, anyway, a factor 8 is impossible, I think you were wrong the decimals, it will have to be 0.8 which indicates indicates short of air, so the mixture is rich of fuel (the airpired air is only 80 % of the necessary to obtain the stoichiometric).