Engine autopsy
- Thread starter TrentNell
- Start date
Um...GM/DMAX makes it.
Sorry Mario, I was thinking he had something aftermarket.
An aftermarket cam thrust plate? Really? Do those even exist? No I didnt think so.
(Still hung up on the driving argument thing I see, thus the "mario" reference)
Its just the stock cam retainer. Josh's motor showed wear on the on the the backside of the retainer where the cam was walking to the front of the block.
Thats impressive for what you had done/in it. Thanks trent Duratothemax, Your such a ass. I see you doing this often and usually don't give a crap nor say anything but damn dude. He asked a simple question. You don't have to jump all over everyone because he doesn't know everything!
Its just the stock cam retainer. Josh's motor showed wear on the on the the backside of the retainer where the cam was walking to the front of the block.
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Thanks for the Pic, I was also a little confused on the cam retainer subject
:thumb:
Eric, I'm almost positive they were taken out, delipped and put on the new rods. I'm 99% sure I remember he even reused the piston rings. Hopefully he'll verify though.
not to speak for Trent but yes he took the slugs out cut them down in his shop at home, and reused the rings
Here's my #8 delipped piston out of my LB7. I've also seen one fail out of a 05 LLY that was delipped and coated.
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Is it me or has every cracked piston I have seen has blown out on the corner of the wristpin pointing to the rear of the block?
That cant be coincidence
That cant be coincidence
Is it me or has every cracked piston I have seen has blown out on the corner of the wristpin pointing to the rear of the block?
That cant be coincidence
And where do you think Maximum stress is on the piston?
A while back I ran the stock pistons through an FEA program to try and understand the stress interactions and how delipping might help. A couple things came out of it. Most interesting to me was that delipping actually weakens the piston. The max stress point is more spread out however, and that might help if failures stem from a fatigue issue and not an ultimate strength problem.
Don't forget that delipping also reduces compression and thus the ultimate pressures the piston must withstand.
Is it me or has every cracked piston I have seen has blown out on the corner of the wristpin pointing to the rear of the block?
That cant be coincidence
X2! i have two from my own motor that blew out there.
mine were stock pistons.