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Old 08-15-2017, 02:24 PM   #36
JFP in PA
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Join Date: Feb 2005
Location: It's a kind of magic.....
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Quote:
Originally Posted by Cbonilla View Post
Could very well be, but the difference was just a matter of moments between first hearing the clatter of valves meeting pistons and getting to the side of the road and restarting the car only to continue hearing the clatter. Whether the bolt failed and caused the bearing to fail or the bearing failed is an academic question with no practical difference. And my shop did say that the pan was full of metal pieces
Normally, if there is such a thing with IMS failures, if there is substantial oil loss from inside the bell housing area, it is because of center bolt failure:



When this happens, oil seal is lost and the lack of centering and axial control of the entire IMS shaft simply beats the IMS bearing to death, which results in piston to valve contact, etc.

But by far, the most common comment we hear when one fails is. "there was a noise and it stopped running". Usually, that is the last time it runs.
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Last edited by JFP in PA; 08-15-2017 at 02:28 PM.
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