Robinson R44
Flight Crew Flight Instructor; Flight Crew Instrument; Flight Crew Commercial
Aircraft Equipment Problem Critical
Flight Crew Diverted; Flight Crew Landed As Precaution
Aircraft
During cruise portion of [flight]; the helicopter began to lose power. Manifold pressure climbed; RPMs climbed and oil temperature climbed into the red. I decided to divert to [a suitable alternate] to avoid a possible engine failure and possible emergency landing where a mechanic could diagnose the problem (still ongoing).
Robinson R44 pilot reported he diverted to an alternate airport for a precautionary landing when he began to lose power.