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Message: Well, it depends on what you call "survivie". Not as designed it doesn;t.

Changed By: grant
Change Date: February 21, 2015 09:21AM

Well, it depende s on what you call "survivie". Not as designed it doesn;t.
In the bearing there is a fiberboard or plastic/fiver seal that supposedly keeps the grease in and the oil out.

First of all, it doesn't. Its not oil-tight.

Second of all, it further breaks down, is breached more by hot oil, and the grease is washed away. This is what i mean by "not survive intact".
This appears to be true, both from first hand knowledge, second-hand, and from intuition after looking at the parts and assembly. I assume you have seen them too.

Every bearing i have seen out of the car has had this broken down, or very loose, and the grease partly or completely gone. That said, and to your point, most of those bearings were still operational. Some were loose, some were awful and dying, but many had survived - so far.

This underscores the complexity of the failure. If you follow Pedro's demo, they all should shed oil and fail. but they don't, at least not at the same rate. The bearing guy (Ed) has indicated that hgih levels of acid in the oil play a major role ( i think correct me if i quoted the wrong guy). But this also suggests that SOME oil remains even while spinning; it also suggests why cars driven more ( mine, yours, stefans) seem to last m=longer - certainly in miles, but oddly even in years. Both of mine were devoid of grease, had more play than they should, but were functional and would have likely remained so for ????? years.

In the end though, i was stating - and this is true - that the product as designed, with seals and grease, does not long survive. It changes to an oil-lubricated device early in its life and from there on the speculation begins.

Grant

Original Message

Author: grant
Date: February 21, 2015 09:20AM

Well, it depende on what you call "survivie".
In the bearing there is a fiberboard or plastic/fiver seal that supposedly keeps the grease in and the oil out.

First of all, it doesn't. Its not oil-tight.

Second of all, it further breaks down, is breached more by hot oil, and the grease is washed away. This is what i mean by "not survive intact".
This appears to be true, both from first hand knowledge, second-hand, and from intuition after looking at the parts and assembly. I assume you have seen them too.

Every bearing i have seen out of the car has had this broken down, or very loose, and the grease partly or completely gone. That said, and to your point, most of those bearings were still operational. Some were loose, some were awful and dying, but many had survived - so far.

This underscores the complexity of the failure. If you follow Pedro's demo, they all should shed oil and fail. but they don't, at least not at the same rate. The bearing guy (Ed) has indicated that hgih levels of acid in the oil play a major role ( i think correct me if i quoted the wrong guy). But this also suggests that SOME oil remains even while spinning; it also suggests why cars driven more ( mine, yours, stefans) seem to last m=longer - certainly in miles, but oddly even in years. Both of mine were devoid of grease, had more play than they should, but were functional and would have likely remained so for ????? years.

In the end though, i was stating - and this is true - that the product as designed, with seals and grease, does not long survive. It changes to an oil-lubricated device early in its life and from there on the speculation begins.

Grant