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View Poll Results: did YOUR car suffer an IMS failure
yes, the IMS failed
5.67%
No issues with IMS
94.33%
Voters: 1659. You may not vote on this poll

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

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Old 02-21-2018, 02:17 PM
  #901  
Addictedmotorsc2
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Correct, although like I mentioned previously I may have the exact date and milage slightly wrong since I do not have the records in front of me. The dealership was Porsche of Warrington PA

VIN: WP0AA299X5S717354
Old 02-24-2018, 12:38 AM
  #902  
Blue997.1
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Thumbs up 2007 997.1 S - 44k miles no issues

Old 02-28-2018, 02:30 AM
  #903  
shyamvenky
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Votes Yes.
Recently purchased a 997 (the 2nd one that I've owned) and found out after scouring through the service history that the car had the IMSB fail long back.
It's an early 997 (Nov 2004 build date I think) and the IMSB failed at 38,500 miles and was repaired by the dealership on 03/02/12.
This is actually a heave of relief for me, since they put in an LN IMSB kit and recently during the clutch change, the previous owner said that the bearing still looked fine.
Old 03-05-2018, 04:49 PM
  #904  
Jasalty
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Default 2006 977 Cab Water Pump

2006 997 Cab Water Pump replacement @ 70K miles
Old 03-08-2018, 02:35 PM
  #905  
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Old 03-25-2018, 11:07 AM
  #906  
RNBM
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Default 2008 997.1 s 179K miles. No ims failure

Daily driver. Warm climate. Replaced to AOS, which was scary cause smoke was pooring out back. Never torque or rev more then 3k before oil fully warm. Carefull of oil pressure going around clover leafs entering highway.
Old 03-25-2018, 11:13 AM
  #907  
TheBruce
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Originally Posted by RNBM
Daily driver. Warm climate. Replaced to AOS, which was scary cause smoke was pooring out back. Never torque or rev more then 3k before oil fully warm. Carefull of oil pressure going around clover leafs entering highway.
Wow, I think you just won the 997 mileage award. Would be great to have you post your experience in the high miler thread (I forget the exact name). Interested to know what type of maintenance you've done over 180k miles.

High mile thread https://rennlist.com/forums/997-foru...age-997-a.html
Old 05-07-2018, 06:34 PM
  #908  
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The clutch just failed on my '07 C4 cab, which I've owned from new and has 50,000 miles (I used to track it; hence, the clutch). The clutch/RMS is an expensive fix, and the dealer suggested they do the IMS upgrade while they had it apart. The IMS upgrade is only $1000, so I told them to go ahead. My recollection is that Porsche upgraded the IMS in late '07 MY or '08, so I've never been clear at how much risk I've been in any case. But for $1000, it's not worth taking a chance any longer.
Old 05-07-2018, 06:37 PM
  #909  
bommerts
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Originally Posted by raspritz
The clutch just failed on my '07 C4 cab, which I've owned from new and has 50,000 miles (I used to track it; hence, the clutch). The clutch/RMS is an expensive fix, and the dealer suggested they do the IMS upgrade while they had it apart. The IMS upgrade is only $1000, so I told them to go ahead. My recollection is that Porsche upgraded the IMS in late '07 MY or '08, so I've never been clear at how much risk I've been in any case. But for $1000, it's not worth taking a chance any longer.
Don't do it! 1) It's not needed and 2) it's not as easy of a job as the older style IMS. Do some research first. If the dealer says they did it, they may be scamming you.
Old 05-07-2018, 06:47 PM
  #910  
DoninDen
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Originally Posted by raspritz
The clutch just failed on my '07 C4 cab, which I've owned from new and has 50,000 miles (I used to track it; hence, the clutch). The clutch/RMS is an expensive fix, and the dealer suggested they do the IMS upgrade while they had it apart. The IMS upgrade is only $1000, so I told them to go ahead. My recollection is that Porsche upgraded the IMS in late '07 MY or '08, so I've never been clear at how much risk I've been in any case. But for $1000, it's not worth taking a chance any longer.
there is no IMS fix for an ‘07. The IMS bearings are the larger bearings in the crank. Possibly the mechanic doesn’t know which engine is in the 07, but he would have the crack the case open to get to the IMS on an 07. If you want to test his honesty, tell him to do it and then see if he comes back with good news.
Old 05-07-2018, 08:14 PM
  #911  
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Originally Posted by DoninDen


there is no IMS fix for an ‘07. The IMS bearings are the larger bearings in the crank. Possibly the mechanic doesn’t know which engine is in the 07, but he would have the crack the case open to get to the IMS on an 07. If you want to test his honesty, tell him to do it and then see if he comes back with good news.
I guess it would be good news either way if they really would do it for $1000 wouldn't it?
Old 05-08-2018, 12:07 AM
  #912  
TheBruce
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Originally Posted by DoninDen


there is no IMS fix for an ‘07. The IMS bearings are the larger bearings in the crank. Possibly the mechanic doesn’t know which engine is in the 07, but he would have the crack the case open to get to the IMS on an 07. If you want to test his honesty, tell him to do it and then see if he comes back with good news.
Ditto that. Sleep well with an extra $1k in your pocket. You have a about the same chance of getting a brain tumor as you do having the IMS fail on a 2006+.
Old 05-08-2018, 12:15 AM
  #913  
Petza914
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Originally Posted by raspritz
The clutch just failed on my '07 C4 cab, which I've owned from new and has 50,000 miles (I used to track it; hence, the clutch). The clutch/RMS is an expensive fix, and the dealer suggested they do the IMS upgrade while they had it apart. The IMS upgrade is only $1000, so I told them to go ahead. My recollection is that Porsche upgraded the IMS in late '07 MY or '08, so I've never been clear at how much risk I've been in any case. But for $1000, it's not worth taking a chance any longer.
You do need to have them pull the grease seal from the IMS bearing while the transmission is off and they can access the bearing by removing the bearing flange and RMS, so you won't save the full $1,000 but pretty close, and it will extend the life of your larger IMS bearing. The only other way to replace the larger IMS bearings used in the late '05 through '08 cars other than splitting the case (as previously mentioned) is to mill the opening larger, which is a terrible idea - so if this is what they were thinking, make sure they absolutely do not do that.
Old 05-08-2018, 11:31 AM
  #914  
raspritz
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To all: Thanks for the info. Here is what they are quoting: LN IMS UPGRADE WITH TRANSMISSION REMOVED - $1,187.00
Is that informative at all? As my avatar suggests, I know early air-cooled Porsches fairly well, but on my 997 I have never attempted anything more complex than changing the oil or replacing the brakes.
Rich
Old 05-08-2018, 11:33 AM
  #915  
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Originally Posted by raspritz
To all: Thanks for the info. Here is what they are quoting: LN IMS UPGRADE WITH TRANSMISSION REMOVED - $1,187.00
Is that informative at all? As my avatar suggests, I know early air-cooled Porsches fairly well, but on my 997 I have never attempted anything more complex than changing the oil or replacing the brakes.
Rich
Rich, no that's physically impossible on your year of 997. Does this shop know these cars - I'm now worried whether you should have anything done there on a 997 at all.


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