One of the reasons why this topic is repeated again and again is because it is continually evolving. I just came up with a method to install the new bearing that doesn't require the use of the camshaft timing tool. I have a 5-chain motor on the bench in my garage here, and a 3-chain motor on the stand that we will be testing this week. I will put this information on the site as soon as it's finalized and reviewed.
As for the price of the kit, I've been told that the actual parts are expensive. The bearing alone costs $85 or something close to that. I believe that in the future, there will be a kit that will replace that bearing with a more standard bearing, but then you're back at the same issue again - when will it fail. As I wrote in my book:
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Porsche designed these motors using a sealed ball bearing that is pressed into the intermediate shaft. These types of bearings are typically used in things like copy machines and other machinery used in dry conditions. In theory, the area where Porsche designed the bearing to sit is supposed to be dry. However, after years of use within the engine, it would appear that oil and contaminants from the engine seep past the bearing seal, wash out the original lubricant and become trapped inside. The result is that the bearing now operates in a less-than-ideal environment and begins to wear prematurely.
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As for repetition of stuff, I don't mind the open and continuous of issues that are constantly evolving.
-Wayne