10-28-2011, 10:52 PM
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#1
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Registered User
Join Date: Oct 2011
Location: San Diego
Posts: 111
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What's the typical cost of an IMS bearing replacement on a Tiptronic vehicle (no clutch jobs being done anyway)?
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10-29-2011, 11:31 AM
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#2
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Registered User
Join Date: Aug 2005
Location: Sanford NC
Posts: 2,583
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Around $3k for a TIP.
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11-04-2011, 06:38 PM
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#3
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Registered User
Join Date: Oct 2011
Location: San Diego
Posts: 111
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Quote:
Originally Posted by mikefocke
Around $3k for a TIP.
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Does a bearing retrofit require the engine to also drop, or just the tranny?
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11-07-2011, 06:30 PM
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#4
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Registered User
Join Date: Jul 2010
Location: California
Posts: 1,859
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Quote:
Originally Posted by ChairmanRon
Does a bearing retrofit require the engine to also drop, or just the tranny?
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A picture pulling IMS bearing while the engine is still in my car.
__________________
Jäger
300K Mile Club
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11-05-2011, 06:15 PM
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#5
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Porsche "Purist"
Join Date: Aug 2003
Location: Wisconsin
Posts: 2,123
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No need to remove engine.
__________________
1998 Boxster with 7.8 DME, 2005 3.6 liter/325 hp, Variocam Plus, 996 Instrument panel
2001 Boxster original owner. I installed used motor at 89k.
1987 924S. 2002 996TT. PST-2
Owned and repaired Porsches since 1974. Porsche: It's not driving, it's therapy.
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11-21-2011, 06:50 PM
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#6
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Registered User
Join Date: Oct 2011
Location: San Diego
Posts: 111
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Quote:
Originally Posted by Paul
No need to remove engine.
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My shop is telling me that with a TIP 986 replacing IMS requires dropping the engine too. Is he wrong?
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11-14-2011, 02:52 AM
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#7
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Registered User
Join Date: Feb 2005
Location: It's a kind of magic.....
Posts: 6,614
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Problem is that when the IMS is wobbling emough for the Durametric (or PIWIS) to see it, there already is metal all over the engine that will need to be cleaned out before putting it back in service. Jake's approach sees something wrong much earlier, before the inside of the sump looks like a trash can under a machine tool..........
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“Anything really new is invented only in one’s youth. Later, one becomes more experienced, more famous – and more stupid.” - Albert Einstein
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11-27-2011, 05:37 PM
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#8
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Engine Surgeon
Join Date: Aug 2008
Location: Cleveland GA USA
Posts: 2,425
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By the time any valve timing deviations occur the engine has already been subject to foreign object debris from the failing bearing that HAS to have degraded enough to allow for the deviations to e measurable. Collateral damage from foreign object debris wear metals from the IMS bearing have always been the primary modes of engine failure with IMSB failure.
There are lots of issues with measuring camshaft deviations and I know these because I have tried it.. Wait till a tensioner gets lazy or you have thick oil on a cold morning, or under heavy deceleration. What's is supposed to happen in theory doesn't happen. False positives would happen daily.
__________________
Jake Raby/www.flat6innovations.com
IMS Solution/ Faultless Tool Inventor
US Patent 8,992,089 &
US Patent 9,416,697
Developer of The IMS Retrofit Procedure- M96/ M97 Specialist
Last edited by Jake Raby; 11-27-2011 at 05:44 PM.
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12-10-2012, 02:26 AM
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#9
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Registered User
Join Date: Feb 2005
Location: It's a kind of magic.....
Posts: 6,614
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Could be either the chain guide wear paddles or the tensioners, you would need to start looking to see which or if it is both (not uncommon). Could also be the VarioCam unit.
__________________
“Anything really new is invented only in one’s youth. Later, one becomes more experienced, more famous – and more stupid.” - Albert Einstein
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12-10-2012, 06:13 AM
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#10
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Registered User
Join Date: Sep 2009
Location: toronto
Posts: 2,668
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I found that once I switched to a 5w40 I saw much less plastic material in my oil filter. This may be just due to chain run in on the plastic earlier on in the cars life vs later when chain grooves are more established
I do continue to see little flecks of what looks like vario cam pad material....perhaps as a result of my driving style. I am up and down through 4k a lot on the street.
Anyway perhaps a different oil may help you in the future
__________________
986 00S
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12-10-2012, 06:21 AM
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#11
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Registered User
Join Date: Apr 2012
Location: Riverside, CA
Posts: 1,666
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I found this DIY here on the Cam shaft deviation issue.
DIY: Setting Cam Timing on M96
After you replace the worn parts of course!!!
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"It broke because it wants to be Upgraded  "
2012 Porsche Performance Driving School - SanDiego region
2001 Boxster S, Top Speed muffler, (Fred's) Mini Morimotto Projectors, Tarret UDP,
Short Shifter, Touch Screen Dual Din Radio, 03 4 Bow glass Top (DD & Auto-X since May 17,2012)
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