Today's Technical Insight

Turbocharger failures are among the most costly unplanned repairs in heavy-duty fleets. In many cases, the root cause is not component quality but installation procedure ??? specifically, skipping oil priming before first start-up. When a new or rebuilt turbo is fitted without proper priming, the bearings can run dry for the first few seconds of operation. That brief period is enough to cause micro-scoring and premature failure within weeks. Workshops should always follow the manufacturer priming procedure: fill the oil feed line, rotate the compressor wheel by hand, and crank the engine without starting until oil pressure is confirmed. Fleet managers who build this step into every turbo replacement job can significantly reduce repeat failures and warranty disputes.