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Archive for October 20th, 2008

Oct
20

Pre Oiling of a Turbocharger

Posted by admin

Thought I would post my instructions for oiling up a turbo. Very important. Most turbos fail because of oil starvation. Doing the following properly will ensure good oil flow and avoid burning out a new turbo.

1. Remove the old gasket from the exhaust manifold-mounting flange, inspect flange for erosion and flatness, and install a new gasket, if used.
2. Inspect oil drain and supply lines for kinking, clogging, restrictions, and other signs of deterioration. Replacing the oil feed line is a requirement to validate your warranty.
3. Install the turbocharger on the engine using all new gaskets and o-rings (when needed), but do not connect the compressor inlet and oil supply line. Tighten the nuts or bolts attaching the turbocharger to the exhaust manifold to the torque values giving in the shop manual. Use of a high-temperature lubricant on these threads is recommended.
4. Fill the oil inlet hole with clean engine oil and spin the compressor wheel several times to coat the bearings with oil. Refill the oil inlet hole and connect the oil supply line.
5. If the compressor wheel cannot be freely spun by hand or if there is any indication of rubbing or scraping, determine the reason before starting the engine. One cause of wheel rubbing is a cocked compressor or turbine housing. T04 and T04B turbochargers may have a slight drag before running, which is a normal condition. Connect the pipe or hose from the outlet of the air filter to the compressor inlet.
6. Check lubricant level in engine crankcase.
7. Prime the oil filter if it was changed.

I’ll add some more instructions tomorrow.


turbocharger parts