 IMS bearing, What years |
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| r_towle |
 Jun 12 2015, 04:52 PM
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#1
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Custom Member  Group: Members Posts: 24,705 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States 
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I went to ln engineering and see the IMS bearing is for up to 2005.
I was under the impression the issue went until 2013? |
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| Sprovost |
Jun 12 2015, 05:11 PM
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#2
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Newbie Group: Members Posts: 16 Joined: 20-February 13 From: Salt Lake City Member No.: 15,556 Region Association: Rocky Mountains |
For what it's worth, my local Porsche dealer told me that the issue was solved with 2009 & above.
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| Cairo94507 |
Jun 12 2015, 05:17 PM
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#3
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Michael Group: Members Posts: 10,303 Joined: 1-November 08 From: Auburn, CA Member No.: 9,712 Region Association: Northern California
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I agree. It was resolved when they went to the DFI engines 2009.
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| billh1963 |
Jun 12 2015, 05:24 PM
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#4
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Car Hoarder! Group: Members Posts: 3,408 Joined: 28-March 11 From: North Carolina Member No.: 12,871 Region Association: South East States |
QUOTE(Cairo94507 @ Jun 12 2015, 07:17 PM)  I agree. It was resolved when they went to the DFI engines 2009. Yep.... 2009 is the magic year |
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| john_g |
Jun 12 2015, 05:26 PM
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#5
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Member Group: Members Posts: 110 Joined: 1-November 12 From: british columbia Member No.: 15,100 Region Association: Canada |
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| Jake Raby |
Jun 12 2015, 10:00 PM
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#6
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Engine Surgeon Group: Members Posts: 9,398 Joined: 31-August 03 From: Lost Member No.: 1,095 Region Association: South East States |
Read IMS 101 here at www.imsretrofit.com
M96 engines used the dual row bearing from 97-2000. The single row from 2001-2005. The M97 engine brought with it an IMS Bearing that was 26% larger and can't be retrofitted with the processes I invented due to the bearing being larger than the crankcase port used to remove it. The M97 used this bearing through 2008. In 2009 the factory gave us the 9a1 engine, with no IMSB, and a host of other issues. 2009 is NOT a magic year, and the future will prove what we've been seeing for 5 years working with the 9a1 engines, some that have failed at only 4,165 miles. The GT3 and Turbo engines utilized the Mezger design IMS/ Layshaft through 2013 when they were also replaced with the 2 chain engine, missing a layshaft for the first time. Attached thumbnail(s) 
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| EdwardBlume |
Jun 13 2015, 01:24 AM
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#7
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914 Wizard Group: Members Posts: 12,338 Joined: 2-January 03 From: SLO Member No.: 81 Region Association: Central California
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There goes my plan for an '09. What about 2013-on Boxsters and Caymans dream killer?
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| billh1963 |
Jun 13 2015, 05:12 AM
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#8
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Car Hoarder! Group: Members Posts: 3,408 Joined: 28-March 11 From: North Carolina Member No.: 12,871 Region Association: South East States |
QUOTE(Jake Raby @ Jun 13 2015, 12:00 AM) Read IMS 101 here at www.imsretrofit.com M96 engines used the dual row bearing from 97-2000. The single row from 2001-2005. The M97 engine brought with it an IMS Bearing that was 26% larger and can't be retrofitted with the processes I invented due to the bearing being larger than the crankcase port used to remove it. The M97 used this bearing through 2008. In 2009 the factory gave us the 9a1 engine, with no IMSB, and a host of other issues. 2009 is NOT a magic year, and the future will prove what we've been seeing for 5 years working with the 9a1 engines, some that have failed at only 4,165 miles. The GT3 and Turbo engines utilized the Mezger design IMS/ Layshaft through 2013 when they were also replaced with the 2 chain engine, missing a layshaft for the first time. Jake, What issues are 9a1 engines seeing? I thought the elimination of the Intermediate Shaft Bearing and a new rear main seal design solved the biggest issues with the earlier engines? |
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| campbellcj |
Jun 13 2015, 12:29 PM
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#9
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I can't Re Member Group: Members Posts: 4,621 Joined: 26-December 02 From: Agoura, CA Member No.: 21 Region Association: Southern California
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QUOTE(RobW @ Jun 13 2015, 12:24 AM) There goes my plan for an '09. What about 2013-on Boxsters and Caymans dream killer? Not sure what you're itching for, but FWIW the 996 Turbos are great buys right now and do not have the IMS problem as Jake noted. |
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| Jake Raby |
Jun 14 2015, 06:47 AM
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#10
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Engine Surgeon Group: Members Posts: 9,398 Joined: 31-August 03 From: Lost Member No.: 1,095 Region Association: South East States |
Cylinder failures and timing chain failures. There has also been a rash of on- track failures of the oil pump drive sprocket.
Just buy an earlier car and perform an IMS retrofit. |
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