Quote:
Originally Posted by Tcoat
There are many other examples but some of them are buried in threads with different titles. There were also many threads that were deleted at the different OP's request after they decided to go down the legal road. Unfortunately those ones never came back to us with results or findings other than the fact that there were chunks of silicone in the oil. If we remove the ones where low oil levels or a lack of oil changes may have been the issue (we only hear one side of the story here so in at least a few cases it has to be true) then we are left with the blocked channels as virtually the only identified and confirmed cause.
To be very clear I feel there could be other factors at work here but the overwhelming evidence that we have available still indicates a problem with the sealant applied to some cars.
People like to try to use my number of posts against me as if it is a bad thing somehow but for every post I have made I have read at least 100 and actually remember what I read.
Should anybody come up with some evidence to support their theory that there is an oil pressure issue in the stock engine I am more than willing to listen but at this point I am sticking with the known and well documented failure mode of blocked channels in a very small subset of the cars. I am convinced that this is a manufacturing defect and not an engineering flaw and that the condition has been identified and corrected at the assembly level. No matter how good the QA of a manufacturer is some defects make it through the system so we may see the odd failure still occur in the later model years but that does not make them the norm nor even expected. Unfortunately there is not much short of a full tear down and inspection that can avoid the failure and since they have always been sudden and catastrophic they grab a lot of attention so appear to be more common than they really are.
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I really hope you are right for the sake of others. Mine had no evidence to back up the failure. No packing in the main that feeds #4 (I spun #3 anyways) and no packing in the pan, filter or pickup strainer. I opened up every feed and found no contamination. I also took the gears apart and found no contamination in there. Lots of bearing flakes in the pan but surprisingly none of it made its way to the rest of the engine. There were some flakes in the pickup though.