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Jan 16, 2015 | 04:23 PM

#46

ZX9RCAM

Nordschleife Master

Joined: Aug 2005

Posts: 5,143

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From: Spring, Texas (The Woodlands)

Quote:

Originally Posted by p.vanderlinden

Wow, so car goes 77k on factory IMS and 23K on expensive LN IMS bearing?

Makes me wonder about the quality of the install (if it actually was installed)

Once again, nobody has said it was the IMS....

Jan 16, 2015 | 04:25 PM

#47

p.vanderlinden

Racer

Joined: Apr 2002

Posts: 286

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From: 40th Anni. South OC, CA

True enough but the symptom "rocks in a hub cap" indicates a high probability, though being able to drive the car after hearing that makes one wonder if it might be something else?

Jan 16, 2015 | 04:34 PM

#48

Ck986

Pro

Joined: May 2013

Posts: 630

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From: NJ

If you can drive the car, its probably not the imsb. Maybe the chain for one bank went. I have heard of the motor running on 3 cylinders in a turbo due to a broken chain.

Jan 16, 2015 | 04:36 PM

#49

gricec

Pro

Joined: Apr 2008

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Surely you would notice some kind of power loss. How far did you drive it?

Jan 16, 2015 | 04:49 PM

#50

FRUNKenstein

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Joined: Jun 2003

Posts: 6,022

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From: Overland Park, KS

Really - no loss of power? Second opinion maybe?

Jan 16, 2015 | 04:50 PM

#51

Howaboutthat

Instructor

Joined: Sep 2013

Posts: 241

Likes: 6

Quote:

Originally Posted by p.vanderlinden

Wow, so car goes 77k on factory IMS and 23K on expensive LN IMS bearing?

Makes me wonder about the quality of the install (if it actually was installed)

Ditto. California car so, presumably, no severe cold weather starting risk across its history. Bad install of IMSB; water pump fragmentation; timing chain breach? Even if the cylinders scored, is this is foreseeable outcome? Odd.

Jan 16, 2015 | 09:33 PM

#52

cringely

Thread Starter

Racer

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Posts: 427

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From: So Cal

Quote:

Originally Posted by gricec

Surely you would notice some kind of power loss. How far did you drive it?

Possibly as far as 40 miles. Didn't stomp on the accelerator, but going up a 10% grade, didn't have to hit the gas, just tickle it.

I've attached a photo of the (taken apart) oil filter showing the metal filings caught by the filter—if that will help (especially if someone knows what a trashed IMS bearing does to the oil filter). sorry for the size of the image

Attached Images

100_7989.jpg (302.6 KB, 3125 views)

Jan 16, 2015 | 09:35 PM

#53

tdrimer

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Joined: Dec 2011

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Is JR. Still around to see this?

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Jan 16, 2015 | 10:25 PM

#54

Cuda911

Race Director

Joined: Jun 2013

Posts: 11,371

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From: Oceanside/Vista (N. San Diego County), CA

Hmmm.... looks more like ground up plastic than metal. Rail guide?

Jan 16, 2015 | 10:29 PM

#55

tdrimer

Racer

Joined: Dec 2011

Posts: 449

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Quote:

Originally Posted by Cuda911

Hmmm.... looks more like ground up plastic than metal. Rail guide?

And isn't the LN bearing ceramic ball? What metal would come from the bearing?

Jan 16, 2015 | 10:53 PM

#56

Sneaky Pete

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Joined: Nov 2008

Posts: 5,815

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From: Mooresville, IN (Life Long Cheesehead)

There no way this is IMS related. The motor would have seized up from loss of oil. Something else caused this. No doubt damage was done after 40 miles.

Jan 16, 2015 | 11:46 PM

#57

Schnell Gelb

Drifting

Joined: Apr 2014

Posts: 2,337

Likes: 28

From: Los Angeles

I've had a similar engine issue.
The chain rails debris should be brown/dark brown
Magnetic debris -maybe IMS
Non metallic glitttering debris = crankshaft/rod bearings
White/grey granular - look at it under a microscope to see the shape of the particles. ceramic should be shards ,not spheres?

Jan 17, 2015 | 12:56 AM

#58

aftCG

Instructor

Joined: Feb 2014

Posts: 109

Likes: 2

That is a crap ton of debris. I found maybe half of one of those filter folds.

Next I found a glitter filled two row IMSB and then went on to find heavily worn out main and rod bearings.

I'm going to guess you drove that car 40 miles with five cylinders.

Jan 17, 2015 | 11:14 AM

#59

cringely

Thread Starter

Racer

Joined: Sep 2012

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From: So Cal

also, no loss of oil pressure during the drive to repair shop, normal water temp, no check engine light or any dashboard indicators. If it wasn't for the noise, I wouldn't have been aware of any problem.

Jan 17, 2015 | 12:40 PM

#60

Sneaky Pete

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Joined: Nov 2008

Posts: 5,815

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From: Mooresville, IN (Life Long Cheesehead)

Quote:

Originally Posted by cringely

This is not making sense......at all. Maybe you ran over a squirrel and it somehow got lodged in your airbox.....and that squirrel is super pissed! I would be to after 40 miles.

So what exactly is your mechanic saying in order to charge $19K for a installed motor? That part isn't clear unless I mis-read something.