What was found
ENGINE PURCHASED WITH A PARTIALLY ASSEMBLED HOMEBUILT AIRCRAFT. INFORMATION IN LOG INDICATED THE ENGINE HAS BEEN OVERHAULED APPROXIMATELY 6 HRS PRIOR TO AIRCRAFT COMPLETION. ON FIRST FLIGHT, PILOT COMPLAINT WAS LOW POWER. AFTER SEVERAL HOURS OF TROUBLESHOOTING, IGNITION, INTERNAL TIMING, AND OTHER ITEMS, TWO CAMSHAFT LOBES WERE FOUND WORN. SUBMITER STATED CAUSE IS SUSPECTED TO BE NO LUBRICATION DURING INITIAL RUNNING OF THE ENGINE.