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IMS failure for your 997 car, Y or N? tell us (yr, 997.1, .2, m96, m97, failure mode)

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IMS failure for your 997 car, Y or N? tell us (yr, 997.1, .2, m96, m97, failure mode)

 
Old 05-01-2019, 10:59 AM
  #1021  
darrenj
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Originally Posted by Flat6 Innovations View Post
On the 05 the transaxle does not have to be dropped to perform a visual inspection of the IMS bearing flange, to determine which bearing the engine has. A bore scope with a 5.5mm tip, or smaller can be used to clearly see the IMSB flange, when inserted through a specific piece of real estate between the engine, and transaxle.

I suppose I should show this in a Rennvision technical video on the topic. I donít think anyone else has figured it out. (imagine that :-)

Watch this low mileage car. Inspect it more closely than a high mileage car, and that means following my procedure in the 4th video of the bore scoring video to ensure that no scoring is occurring. You cannot be careful enough. Donít have blinders on simply due to the mileage, that is a huge mistake. With 26k miles the car was not driven enough to show any issues.
Jake,

Are you able to share the procedure to check the bearing on a 05 without removing the transaxle. I own an 05 I want to check.

thanks
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Old 05-01-2019, 11:10 AM
  #1022  
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Originally Posted by darrenj View Post
Jake,

Are you able to share the procedure to check the bearing on a 05 without removing the transaxle. I own an 05 I want to check.

thanks
It canít be put into words. You must see it.
Subscribe to Rennvision on YouTube and wait for the video.
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Flat 6 Innovations
Inventor of the IMS Solution:
US Patents 8,992,089, 9,416,697 & 9,909,469

Inventor of the Single Row Pro IMS Retrofit, and Faultless Tool with method of installation:
US Patent 9,687,974


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Old 05-05-2019, 04:28 PM
  #1023  
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Default No failure 07 c2s

No 🤞
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Old 05-10-2019, 09:58 AM
  #1024  
merlin's glasses
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Default Porsche 997

Just bought a porsche 997 carrera s '05, question about engine number M9701-685-G9701-10. Does this engine have the upgraded IMS bearing?
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Old 05-10-2019, 10:11 AM
  #1025  
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Originally Posted by merlin's glasses View Post
Just bought a porsche 997 carrera s '05, question about engine number M9701-685-G9701-10. Does this engine have the upgraded IMS bearing?
The G you have in the middle is actually a zero

For 3.8L motors, up to M97/01 68509790 has the smaller IMS bearing and Engine number from M97/01 68509791 has the larger revised IMS.

so this is probably a small bearing and smaller IMS shaft early car, but with any 05 the only guarantee as to what's in it is to examine the bearing flange and see which size nut it has.
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Old 05-10-2019, 10:17 AM
  #1026  
merlin's glasses
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Originally Posted by Petza914 View Post
The G you have in the middle is actually a zero

For 3.8L motors, up to M97/01 68509790 has the smaller IMS bearing and Engine number from M97/01 68509791 has the larger revised IMS.

so this is probably a small bearing and smaller IMS shaft early car, but with any 05 the only guarantee as to what's in it is to examine the bearing flange and see which size nut it has.
Thx,
Anyhow I have 1 year warranty to figure out what to do.
Currently 30000miles 2005 997.1 no IMS issue
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Old 05-10-2019, 03:13 PM
  #1027  
DoninDen
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Originally Posted by merlin's glasses View Post
Thx,
Anyhow I have 1 year warranty to figure out what to do.
Currently 30000miles 2005 997.1 no IMS issue
I believe some feel that the smaller bearings are better, because they are easier to replace. I don't want to create an argument, but there have been reports that the later, larger bearings have experienced failures. (See the comments I posted above in #998 from LN Engineering, who said it occurs, but very, very rare in the larger bearings)
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Old 05-13-2019, 02:31 PM
  #1028  
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Just checked the engine number looks like something different as in maintenance booklet.
In my point of view M97/0168514644.
Looks like it has a bigger bearing, anybody any experience with mismatch between maintenance booklet sticker & number on engine itself.
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Old 05-13-2019, 03:08 PM
  #1029  
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Originally Posted by merlin's glasses View Post

Just checked the engine number looks like something different as in maintenance booklet.
In my point of view M97/0168514644.
Looks like it has a bigger bearing, anybody any experience with mismatch between maintenance booklet sticker & number on engine itself.

If that's a different motor than the one originally in the car, it wasn't supplied by Porsche. A Porsche replacement motor includes the letters AT in the new engine serial #. It's possible the original engine failed and one of the owners replaced it with this current one, that by Serial # looks to be a larger bearing motor, but you never really know until you see the bearing flange nut.
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Old 05-13-2019, 03:28 PM
  #1030  
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Ok I know what went wrong.
I orginally posted the number from this sticker, but I combined the engine & transmission number. Therefore I had G (getriebe) in my number.
The engine number from sticker is in fact M9701685, just a general number.
Thanks for the assistance, and with number about 4853 engine numbers later than engine number M97/0168509791. I think it has the larger IMS, thanks for the quick responses.
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