ROTAX 912 FUEL PUMPS
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From the September 2018 issue of Sport Aviation / Experimenter magazine, a look at the Fuel Pumps used on the Rotax 912 engine.
In between each LSRM (Light Sport Repairman Maintenance) class, we usually spend a considerable amount of time upgrading our curriculum. For some time now, we have had a desire to rewrite the curriculum surrounding the fuel pumps used on the Rotax 912. For many years the fuel pump issue was a hot topic in class. There had been a significant number of problems related to the mechanical fuel pumps.
Many of the problems were created by the operators, but a few were obviously related to the design of the fuel pump. As a result, around 2013, Rotax issued service bulletin SB-912-063 (Replacement of fuel pumps). This began the introduction of the 3rd generation of fuel pumps, (part numbers 893114, and 893115).

(Figure: 1, Fuel Pump rendering)





