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Jake Raby · 07-02-2009, 07:11 AM

Ummn,
The IMS bearing is NOT internally lubricated by the engine's oil system!! It is a SEALED BEARING that is permanently lubricated at the time of manufacture.

That is the major reason that it fails.

07-02-2009, 07:11 AM	#7
Jake Raby Engine Surgeon Join Date: Aug 2008 Location: Cleveland GA USA Posts: 2,425	Ummn, The IMS bearing is NOT internally lubricated by the engine's oil system!! It is a SEALED BEARING that is permanently lubricated at the time of manufacture. That is the major reason that it fails.