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Originally Posted by Steve Tinker
I feel for your predicament having a major breakage like that. I think Porsches fitted with the M96 engine that are tracked really need the deep sump kit that helps prevent oil starvation under high cornering loads.....
As a matter of interest, how was the main bearing damage diagnosed?
You say that the car has been "running fine" after the initial vibration & rough running - I would have thought that you would have heard a bad main bearing, even at low revs.
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I didn't ask how he determined it was the bearing, but he did say it was scored. He said he didn't look at the crank. Not sure how he got a look at the bearing, especially since they didn't start looking at the car until late in the afternoon. I'm going to ask him tomorrow.
When it did finally stop running, I did hear a bearing noise.
Everybody told me that I only needed a deep sump if I had slicks. They said you wouldn't generate the Gs with street tires that could cause scavenging. I guess they were wrong.