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Old 09-28-2017, 02:37 PM   #12
JFP in PA
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Join Date: Feb 2005
Location: It's a kind of magic.....
Posts: 6,273
Quote:
Originally Posted by geraintthomas View Post
Okay, your example is completely flawed as you've already replaced yours with an aftermarket solution. If you had the original in there with it being a 2001 Boxster, with only 12k miles on the clock, you'd more than likely have issues at this point. Not all are the same, but an old, low mileage Boxster is usually asking for trouble due to the bearing not being lubricated to the amount it needs to be, causing premature failure in comparison to daily drivers. You can't really argue with that point, and that's all we've been saying.

But that was his whole point, the car he was looking at didn't have an uprated bearing, so we're warning him of the possible dangers of buying an old, low mileage Boxster. The fact you have an older model with low miles makes absolutely no difference to the point being made as you've changed your bearing, so I'm not sure what you're talking about with his 'glaring hole' in his theory.
And the "flaw" with your argument is "an old, low mileage Boxster is usually asking for trouble due to the bearing not being lubricated to the amount it needs to be, causing premature failure in comparison to daily drivers." The factory bearing is sealed on both sides, and even when the seals fail, the bearings do not get regular forms of lubrication, which is why they die. Age or mileage has nothing to do with it. Over the years, we have seen engines of all levels of mileage lose their IMS bearings; 10K miles or 110K mile made absolutely NO difference. Once the grease was gone, and no real lubrication was taking place, they died.

When we compiled our data from years of exposure to the issue and did a statistical analysis, mileage show a very low correlation with IMS failure; when we added in the data from two other shops to increase the sample size, it only got worse.
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Last edited by JFP in PA; 09-28-2017 at 03:15 PM.
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