Oil Supply
The turbine and compressor wheels can reach speeds up to 140,000 RPM. A sufficient supply of clean engine oil is absolutely necessary for continued operation. Engine oil is fed directly to center housing rotating assembly. Any contamination or interruption of oil flow will result in severe turbocharger damage.
NOTE:
Anytime a basic engine bearing, main bearing, connecting rod bearing, camshaft bearing, or any part of turbocharger assembly has been replaced, the oil and oil filter should be changed as part of the repair procedure. In addition, turbocharger should be flushed with clean engine oil to reduce the possibility of contamination.
Whenever oil and filter are changed on a turbocharged engine, the system must be primed with oil prior to starting. Disconnect Pink wire (ignition switch) at HEI distributor. Crank engine until oil light goes out or oil pressure gauge indicates positive pressure. DO NOT crank engine in excess of 30 seconds at a time. Reconnect Pink wire and start engine.