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Originally Posted by Jaxonalden
So Jake,
What year late model 3.2 are we talking about that can receive the IMS retrofit?
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Actually this is unclear. The 996 3.4 engines saw the single row bearing as early as 1999, while some 3.2s as new as 03 or 04 that should have had the single row unit did not. It seems that Porsche used what they had on hand to build what had to be built and there are no definitive times when changes were made.
Removal of the IMS bearing retainer is necessary to verify which unit is in the engine. If the retainer is pulled and a circlip is present, the engine has a single row bearing which is removable and can accept the IMS retrofit unit as a preventive measure. The parts can then be ordered from us and overnighted to you along with the install tool and DVD to walk the installer through the process step by step..
If the retainer is pulled and no circlip is present the engine has a double row bearing and you are stuck with full disassembly and can only use our IMS UPDATE.
We will be shooting an explanatory video on this at the end of the month and will upload it to youtube to assist owners with determining what unit they actually have.
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Also, did Porsche design the later engine blocks so that an IMS fix was possible without pulling the engine? Quote; "were equipped from the factory with a single row IMS that was designed to be changed with the engine in the car".
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Yes. Prior to this change they were "eating" complete engines when the IMS even partially failed while under warranty. The design change was made to savemoney as only a technician's time to swap the bearing was needed, not a full blown engine swap.
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If thats true why didn't Porsche just fix the original problem instead of designing an easy way in?
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$$$$$$$$$$$... Anothger instance of German Accounting trumping German Engineering in todays world.
And the single row bearings are the units that are failing most because Porsche took away a tremendous amount of load bearing surface when going to a single row bearing.. Its an instance of what was best for Porsche while the car was under warranty, without much consideration of what would be best after that time..
So a single row bearing was employed so it would be easier to change.. But the bearing features LESS load capability.
Jake Raby
www.flat6innovations.com