Event Summary
During the takeoff roll, the private pilot experienced a rough running engine. Despite this anomaly, the pilot continued the takeoff. After becoming airborne, the engine failed, and the aircraft subsequently crashed into a residence.
Investigation Findings
Examination of the engine fuel control and fuel divider block revealed the presence of water, rust, and sand. The pilot had been advised six days earlier to have the fuel control and injection system rebuilt. This recommendation followed the discovery of water and sand in the aircraft's fuel tanks, which had been flushed out by a mechanic at that time. The pilot stated then that if the issue caused any future problems, he would have the work performed.