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Originally Posted by DennisAN
Jake,
I did my own install of the dual-row LN bearing last summer. Since it was an owner-install, there's no warranty. If I sent you the used factory bearing, would you still examine it and render an opinion to me?
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The bearings don't come to me, they go to LN.. My part of the classic retrofit bearings has been over for a long, long time now.
Quote:
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How does the original bearing failing impact a new bearing? And what's an expected life for a replacement bearing if the original is failing...at least long enough to make the replacement worth it?
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Debris from the original failure will remain within the engine, being very difficult to remove. These will chew the internals of the engine, and the retrofit bearing to bits.
If a bearing failed, the IMS assembly can also be compromised as it can see collateral damage in the form of housing runout. This can easily create a wobble and harmonic that will shred the retrofit bearing in short order.
This is why preventative retrofits are the only way to go- people won't listen to this until they have wasted 20K by thinking that it can't happen to them.
I have two "criers" this week... Those are failure calls where the owner starts crying.