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Originally Posted by jamscal
1. How does a leaking seal cause complete engine failure, where the end result is the purchase of a 10k engine?
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Hi James,
There are really two RMS leaks you hear about.
One is a leak due to a defective seal. Just need to replace it and you are good to go.
The second is a leak due crankshaft movement. Replacing a seal here does not help and this is where you may need a engine replacement. Porsche has a tool that checks and determines this condition.
There is alot of discussion that the engine design causes ( or allows ) crankshaft movement so it is believed that potentially all engines will eventually have this issue.
Not sure I buy that as you can read about many happy owners with lots of miles and smiles. However, I am no mechanical engineer or even mechanic for that matter so just my opinion.
I thought someone published a pretty good tech article about this issue in detail. Anybody have the link to that? Thought it may be PCNA?