Porsche Reman'd Engine with upgraded IMS?
I have an engine in my carport that is supposedly remanufactured by Porsche with an upgraded, less failure prone IMS bearing. It's a 2000 model year, by the engine number. The engine number does carry the code for a reman'd engine, btw. It was represented to me as having 60k on it, btw.
Anyone heard about this program? |
Porsche did (does?) remanufacture suitable engine cores for resale. If yours has the letters AT in the serial number, it’s a reman.
You can tell the type of IMS bearing installed by the IMS cover and nut. Yours would be the latest style oversized single row bearing if there is a 22mm nut in the centre of the IMS flange. |
If its a MY 2000 there's no way it could have the oversize IMS bearing, the engine casing is different.
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However, the last engines that have an IMS (perhaps the rebuilt ones as well) have a bearing with a larger diameter, that you cannot remove through the casing without splitting it open. |
Do re-manufactured engines done by Porsche sometimes have different IMS assemblies than the submitted for repair engines would have had? Yes.
How can you tell? While the date of re-manufacture will give a clue if you have that, the only sure way to tell is to separate the engine and transmission and look at the external housing that covers the IMS bearing and shaft (flange cover). The design of the housing will tell which it is. Post a picture here and experts who have seen hundreds will tell you. Is it possible that a Porsche dealer re-manufactured the engine and not the Porsche factory and thus the engine serial number would not bear the re-manufactured mark? Until recently, the Porsche policy was dealers didn't get inside the engines. Replaced engines went back to the Porsche factory for examination and re-manufacture. Recently some Porsche dealers have had their techs trained and have taken on IMS replacements or even complete engine rebuilds. More than likely the rebuild was done by an ex-factory-trained mechanic working outside the dealership network as an independent.. |
Mike is correct. Any factory reman built after 2005 will most likely carry the oversized third design IMS bearing. It can easily be spotted by the 22MM center bolt as it was the only IMS to use it.
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https://s8.postimg.org/tnpn4r0sl/ims.jpg :D And the engine # does include the AT mark. |
You win!!!
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Wow,
That's a reman with that nasty looking flange? |
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