02-11-2013, 01:33 PM
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#1
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Registered User
Join Date: Dec 2012
Location: Reading UK
Posts: 45
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Death of an IMS caught on video
I thought I would share this with you guys stateside. I was having a lovely day until it happened.
Death of an IMS bearing caught on video - PistonHeads
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02-11-2013, 01:38 PM
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#2
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Registered User
Join Date: May 2011
Location: Maine, USA
Posts: 126
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Gaaaaahhhhh!
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02-11-2013, 01:55 PM
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#3
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Registered User
Join Date: Aug 2006
Location: or
Posts: 99
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I may have some PTSD issues just from hearing it on tape.
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02-11-2013, 01:57 PM
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#4
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Registered User
Join Date: Nov 2010
Location: DFW
Posts: 381
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That's awful.
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02-11-2013, 02:17 PM
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#5
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Registered User
Join Date: Jan 2013
Location: Houston
Posts: 370
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If you turned the engine off the split second you heard that - would the engine still be toast? Or is it basically fk-ed no matter how fast you react?
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02-14-2013, 01:33 PM
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#6
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Registered User
Join Date: Jul 2008
Location: austin
Posts: 825
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Quote:
Originally Posted by patssle
If you turned the engine off the split second you heard that - would the engine still be toast? Or is it basically fk-ed no matter how fast you react?
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Well in theory if you could hear the IMS going (which would be hard over the noise of the engine itself)
if you haven't lost time, there's a chance you could save it.
unfortunately the nature of the failure is such that you are grinding the ball bearings
into metal dust and the particles 1) must travel through out the engine before
making it to the filter, 2) most will be too small to be captured.
I'm not sure how much leeway there is before you are basically out of timing.
Unfortunately the load on the IMS tube is such that will pull towards
the crank and then will likely be pulled towards the one camshaft as
both chains are under tension.
I don't know how much timing there is before you suffer valve/piston interference.
Remember to some extent the vario-cam alters timing simply by physically manipulating the timing chains to alter the relative chain TDCs if you will
across camshafts and crankshaft.
Mike
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Drivers: '15 Panamera Hybrid (wife's), ' 01 996 GT2, 00 Boxster S, '96 993 Çab/Tip (wife's)
Race Cars: '75 911 RSR Replica & '99 Spec Boxster
mike@lonestarrpm.com
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02-11-2013, 02:20 PM
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#7
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Registered User
Join Date: Feb 2005
Location: It's a kind of magic.....
Posts: 6,620
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By the time you hear the first sound of an IMS failing, the engine is aready full of metal grit and chewing it self apart............
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Anything really new is invented only in ones youth. Later, one becomes more experienced, more famous and more stupid. - Albert Einstein
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02-11-2013, 03:59 PM
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#8
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Registered User
Join Date: Apr 2012
Location: Baton Rouge, LA
Posts: 177
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that ruined MY day.....
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 '99 986 Baton Rouge, LA
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02-11-2013, 04:25 PM
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#9
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Engine Surgeon
Join Date: Aug 2008
Location: Cleveland GA USA
Posts: 2,425
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Makes me want to blow one up on the dyno.
__________________
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
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02-11-2013, 04:44 PM
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#10
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Theoretical propagandist
Join Date: Dec 2011
Location: Pacific Northwest
Posts: 793
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Grateful I did mine! That is a sad sound.
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When life throws you curves, aim for the apex...
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02-11-2013, 06:53 PM
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#11
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Registered User
Join Date: May 2009
Location: Frederick, MD
Posts: 1,396
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the worst part is right after the engine died, the GPS had to rub it in... "turn right"
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"Speed has never killed anyone, suddenly becoming stationary... that's what gets you."
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02-11-2013, 08:29 PM
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#12
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Registered User
Join Date: Dec 2012
Location: Colorado
Posts: 159
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Ouch. That gave me the chills.
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2000 Boxster S
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02-11-2013, 08:38 PM
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#13
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Registered User
Join Date: May 2012
Location: Concord, CA
Posts: 271
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Crunchy. At least it seems like owner was able to replace the engine... Glad I have done my IMS upgrade...that would suck. Cool it is on video tho.
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Michael Comet - www.comet-cartoons.com
2014 Guards Red Cayman S - PSE - PASM - 20"CC - INFTMT - CONV - etc..etc...
SOLD - 2003 Speed Yellow Porsche Boxster S - LNE IMS - Klisstle Rollbar Cover
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02-12-2013, 04:14 AM
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#14
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Registered User
Join Date: Aug 2012
Location: Indianapolis, In.
Posts: 160
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That does it....replacing my IMS with a moo shu pork.
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1998 986 with ladder racks.
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02-12-2013, 05:06 AM
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#15
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Homeboy981
Join Date: Jan 2012
Location: Sherman, TX
Posts: 663
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And THAT is why she is PARKED right now!
That is a sound I would not care to hear again.
As one Brit said, "It gutted me"!
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2002 Porsche Boxtser S - Silver & Chrome - Died from IMS failure AFTER IMS was replaced!
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05-28-2013, 10:33 PM
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#16
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Registered User
Join Date: Dec 2012
Location: Reading UK
Posts: 45
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Thread update - 4k miles since the rebuild and I'm very happy with the car. The other half has even taken to the odd drive. I've had a short shift fitted which I find a vast improvement and two track control arms have sorted a slight knocking that had started to develop at the front. Rear discs and pads are next up so I'll be buying the design 911 set - hopefully this will see me through the summer. She's going on the rolling road on Saturday so I'll be interested to see how near to 260 the car gets
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05-29-2013, 10:52 AM
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#17
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Registered User
Join Date: Apr 2012
Location: Ontario, Canada
Posts: 598
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Glad to hear it Michiganstar! And Jack, you say that single-row IMS bearings miss the third stage of failure - is that oil leaks that can be confused with RMS leaks, or....
Thanks.
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02-12-2013, 05:13 AM
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#18
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Engine Surgeon
Join Date: Aug 2008
Location: Cleveland GA USA
Posts: 2,425
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Do you mind if I use this video in my engine classes? I would kill to have this happen on video without anything being planned.
I hope someone actually tears this engine down, it could have had several other failures that could have very similar results, because all IMS Failures are not IMS failures.
__________________
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; 02-12-2013 at 05:18 AM.
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02-12-2013, 07:37 AM
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#19
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Registered User
Join Date: Dec 2012
Location: Reading UK
Posts: 45
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Hi Jake,
You're more than welcome to use it. The engine has already been torn down and rebuilt and it was the bearing itself that failed and there was sludgy oil around the area despite bit having a FSH and an oil change less than 6k previously. I shall be doing far more frequent oil changes from now on.
Regards
Lee
Last edited by Michiganstar; 02-12-2013 at 09:13 AM.
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02-12-2013, 07:49 AM
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#20
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Registered User
Join Date: May 2009
Location: Frederick, MD
Posts: 1,396
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Quote:
Originally Posted by Michiganstar
Hi Jack,
You're more than welcome to use it. The engine has already been torn down and rebuilt and it was the bearing itself that failed and there was sludgy oil around the area despite bit having a FSH and an oil change less than 6k previously. I shall be doing far more frequent oil changes from now on.
Regards
Lee
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and the inevitable question - how often were you performing oil changes?
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"Speed has never killed anyone, suddenly becoming stationary... that's what gets you."
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