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What is the procedure involved in the replacement of a turbocharger bearing?

Starting on the compressor end, remove drain plug from the bearing housing and drain the oil.
Then remove the pump assembly.Then using the bearing extractor tool, the bearing assembly is removed while the shaft is supported.All dismantled parts should be wrapped in waxed paper and kept clean.
The bearing chamber should be thoroughly cleaned before inserting the new bearing, the bearing assembly is then replaced on the shaft, the pump is now placed.The turbine end bearing is now changed in the exact same way.Before the bearing housings are reclosed and filled with oil, the "K" value must be measured and checked that it is the same as the "K" value that is stamped on the plate of the turbocharger.


Note; this value should also be checked before dismantling the turbocharger for a bearing change.True running of the turbo charger shaft should also be checked with a dial indicator for trueness after bearing renewal.The turbocharger bearing housings end covers are now replaced and refilled with fresh oil.
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