986 Forum - The Community for Porsche Boxster & Cayman Owners - View Single Post - Possible Indicator of Impending IMS Failure

Jake Raby · 08-18-2009, 09:48 PM

The symptom mentioned is isolated from the IMS.. When an IMS bearing gets bad enough to cause a hesitation, your pistons have already collided with your valves at maximum velocity and the engine looks like 3 mile island internally.

08-18-2009, 09:48 PM	#3
Jake Raby Engine Surgeon Join Date: Aug 2008 Location: Cleveland GA USA Posts: 2,425	The symptom mentioned is isolated from the IMS.. When an IMS bearing gets bad enough to cause a hesitation, your pistons have already collided with your valves at maximum velocity and the engine looks like 3 mile island internally.