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thstone · 07-26-2014, 07:23 PM

With 100,000 miles you are WAY past the time to ONLY worry about the IMS. With that amount of mileage, there are numerous other components that are just as likely (or maybe more so) to fail - are you going to do anything about those? If not, then just keep driving it, change the oil often, and when it blows replace it. Start saving for a rebuild or replacement now.

For the record, my engine blew at 136,000 miles with 89 track days due to valve lifter failure. I suppose that I should have installed the Valve Lifter Retrofit. Just joking, that doesn't exist and neither does the Timing Chain Sentinel or Carbide Chain Tensioner Guides, but I'm sure you get the point. Oh, and when the engine was torn down for rebuild, the original IMS bearing was in great shape. Your mileage may vary.

07-26-2014, 07:23 PM	#27
thstone Certified Boxster Addict Join Date: Nov 2010 Location: Los Angeles Posts: 7,669	With 100,000 miles you are WAY past the time to ONLY worry about the IMS. With that amount of mileage, there are numerous other components that are just as likely (or maybe more so) to fail - are you going to do anything about those? If not, then just keep driving it, change the oil often, and when it blows replace it. Start saving for a rebuild or replacement now. For the record, my engine blew at 136,000 miles with 89 track days due to valve lifter failure. I suppose that I should have installed the Valve Lifter Retrofit. Just joking, that doesn't exist and neither does the Timing Chain Sentinel or Carbide Chain Tensioner Guides, but I'm sure you get the point. Oh, and when the engine was torn down for rebuild, the original IMS bearing was in great shape. Your mileage may vary. __________________ 1999 996 C2 - sold - bought back - sold for more 1997 Spec Boxster BSR #254 1979 911 SC POC Licensed DE/TT Instructor Last edited by thstone; 07-26-2014 at 07:32 PM.