These oil priming instructions are the best way to protect your bearings in your turbocharger and should be followed very carefully.
When fitting a turbocharger it is essential to ensure all the air in the oil feed supply to the turbocharger has been bled out. Follow the points below carefully to ensure you do not start the engine with the turbocharger running dry.
- Disable engine by disconnecting fuel solenoid valve or shutting off fuel supply (diesels) or disconnecting ignition system (petrol engines)
- When unit is fitted in position leave oil drain pipe disconnected, hold the compressor wheel in front of the turbo, to prevent the shaft turning a single revolution and crank engine on starter motor in 10 second intervals, do not crank longer than this as it may cause the engine to overheat ( while the engine is cranking if the shaft is not held it may cause the turbocharger to seize up). Allow starter to cool for approximately 15 seconds and crank engine over again. Continue to follow this procedure until oil flows from the drain pipe. This gives a visual indication that the oil supply is through the turbocharger. If you cannot get oil to prime through then don’t hesitate to get in touch with us.
- Do not rely on the oil pressure as an indication that there is oil at the turbocharger. The oil feed pipe is a narrow section and will not cause a pressure drop sufficient to bring the oil light on even when it is full of air as most oil lights extinguish only at 5 PSI. When oil is primed through to the turbocharger reconnect fuel or ignition system and start engine.
- Do not rev engine but allow idling for 3 minutes.
- Check for any leaks and road test the vehicle.