Looks like I'm pulling the engine again. CONFIRMED, engine dead
#34
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If you're good at tuning, which you advertise that you are, give your supercharger a break and think about an L36 bottom end. You know the benefits, and chances are it'* cheaper than an L67 bottom.
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Actually, I'm talking to someone about a rebuilt L37 short block. I then need to pulley up .3"
I do believe I have found the cause. Once photobucket gets back up I can upload them. I did a run out test on my flex plate. Speck has a 3 thousandths max. I found 11 thousandths in round, and 30 thousandths in warp. That'* 10x out of spec. I imagine I hit just that right RPM and it'* all over. I'll know for sure after I flip the engine and pull the mains. But after doing a lot of reading, main bearings sound a lot like rod bearings. My last engine I pulled all the pistons and inspected the bearings, but never pulled the mains. Now I wish I had.
I do believe I have found the cause. Once photobucket gets back up I can upload them. I did a run out test on my flex plate. Speck has a 3 thousandths max. I found 11 thousandths in round, and 30 thousandths in warp. That'* 10x out of spec. I imagine I hit just that right RPM and it'* all over. I'll know for sure after I flip the engine and pull the mains. But after doing a lot of reading, main bearings sound a lot like rod bearings. My last engine I pulled all the pistons and inspected the bearings, but never pulled the mains. Now I wish I had.
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OK, got some pictures now.
Engine ready to come out, again.
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Say ahhhhh.
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Time to test the flex plate.
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Set the dial.
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This was the high said, another part was about 8 or 9 thousandths below the zero. had a total warp of about 30 thousandths. Max spec is 3
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Now to check center.
![Name: B3K8l.jpg
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Total run out was about 10 thousandths.
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Once again, a big hole where a engine should be.
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Well, guess I'm ripping this apart again.
Engine ready to come out, again.
![Name: Vwn1g.jpg
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Say ahhhhh.
![Name: CEAcN.jpg
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Size: 466.5 KB](https://www.gmforum.com/attachments/general-gm-chat-88/80288d1683049635-looks-like-im-pulling-engine-again-confirmed-engine-dead-ceacn.jpg)
Time to test the flex plate.
![Name: jGv43.jpg
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Size: 453.6 KB](https://www.gmforum.com/attachments/general-gm-chat-88/80289d1683049635-looks-like-im-pulling-engine-again-confirmed-engine-dead-jgv43.jpg)
Set the dial.
![Name: aM9i0.jpg
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This was the high said, another part was about 8 or 9 thousandths below the zero. had a total warp of about 30 thousandths. Max spec is 3
![Name: 9Qdpo.jpg
Views: 5
Size: 330.8 KB](https://www.gmforum.com/attachments/general-gm-chat-88/80291d1683049635-looks-like-im-pulling-engine-again-confirmed-engine-dead-9qdpo.jpg)
Now to check center.
![Name: B3K8l.jpg
Views: 5
Size: 365.7 KB](https://www.gmforum.com/attachments/general-gm-chat-88/80292d1683049635-looks-like-im-pulling-engine-again-confirmed-engine-dead-b3k8l.jpg)
Total run out was about 10 thousandths.
![Name: RhgUH.jpg
Views: 6
Size: 376.3 KB](https://www.gmforum.com/attachments/general-gm-chat-88/80293d1683049635-looks-like-im-pulling-engine-again-confirmed-engine-dead-rhguh.jpg)
Once again, a big hole where a engine should be.
![Name: 2Ar8B.jpg
Views: 6
Size: 517.5 KB](https://www.gmforum.com/attachments/general-gm-chat-88/80294d1683049635-looks-like-im-pulling-engine-again-confirmed-engine-dead-2ar8b.jpg)
Well, guess I'm ripping this apart again.
![Name: Z94LB.jpg
Views: 5
Size: 442.6 KB](https://www.gmforum.com/attachments/general-gm-chat-88/80295d1683049635-looks-like-im-pulling-engine-again-confirmed-engine-dead-z94lb.jpg)
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