gold/copper dust on new rebuilt
gold/copper dust on new rebuilt Need some input on this.
If I have a gold/copper dust in my oil filter, what is it ? Should I reopen the block and check or run thicker oil ? Right now i'm on regular 10w30 oil
Engine have arround 500 miles. On cold start, I have 40psi no noise and when hot, I have 10psi at iddle and some valvetrain noise. Have 20psi when i'm at 5000rpm
Machine shop is out of business.
Engine is a 346/LS6 whit forged internal.
If I have a gold/copper dust in my oil filter, what is it ? Should I reopen the block and check or run thicker oil ? Right now i'm on regular 10w30 oil
Engine have arround 500 miles. On cold start, I have 40psi no noise and when hot, I have 10psi at iddle and some valvetrain noise. Have 20psi when i'm at 5000rpm
Machine shop is out of business.
Engine is a 346/LS6 whit forged internal.
Teching In
Joined: Aug 2011
Posts: 46
Likes: 0
From: Austin, TX
Need some input on this.
If I have a gold/copper dust in my oil filter, what is it ? Should I reopen the block and check or run thicker oil ? Right now i'm on regular 10w30 oil
Engine have arround 500 miles. On cold start, I have 40psi no noise and when hot, I have 10psi at iddle and some valvetrain noise. Have 20psi when i'm at 5000rpm
Machine shop is out of business.
Engine is a 346/LS6 whit forged internal.
If I have a gold/copper dust in my oil filter, what is it ? Should I reopen the block and check or run thicker oil ? Right now i'm on regular 10w30 oil
Engine have arround 500 miles. On cold start, I have 40psi no noise and when hot, I have 10psi at iddle and some valvetrain noise. Have 20psi when i'm at 5000rpm
Machine shop is out of business.
Engine is a 346/LS6 whit forged internal.
That oil pressure at idle and at 5000rpm is too low.During the rebuild I hope you replace the oil pump and timing chain? That valvetrain noise is very bad for the lack of oil uptop.I wouldnt suggest running the motor any longer.I get 55psi on cold start up,60psi when im on it,39psi hot at idle on my cammed motor with stock pump as a comparison.
Wow, so there is something wrong on this built 
Oil pump is a ported LS6 and new timing chain. I got 60psi on cold at 5k rpm. I was hopping for the ''O'' ring at the pump was the trouble but the gold/copper dust tell something else.
Oil pump is a ported LS6 and new timing chain. I got 60psi on cold at 5k rpm. I was hopping for the ''O'' ring at the pump was the trouble but the gold/copper dust tell something else. copper color material could be the thrust surface going away. Check crank end play....
Given the psi U R reporting, I'm with the other posters, shut it down, and take it apart...
Given the psi U R reporting, I'm with the other posters, shut it down, and take it apart...
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I cut open the filter. Did not drain the oil since I change it 200miles ago. I did alot of search here and that why I remove the filter first and cut it.
Always go the cheaper way first and move on to other cheaper possibility
Always go the cheaper way first and move on to other cheaper possibility
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TECH Enthusiast
Joined: Nov 2004
Posts: 714
Likes: 0
From: Tampa FL
That sounds like you are down into the bearings somewhere. Crack it open now so you can save it, otherwise you are going to be buying a new rotating assembly. You know now why the machine shop is out of business.
95% Chance you ate a bearing somewhere. Thurst, rods or mains are all possible. Could be from any number of reason, clearances too loose or tight, problems priming the oiling systems on initial start up, etc.
Youre getting loud valve train noise because where ever the bearings are damaged at, the clearances are high, oil is flowing right past and not getting to the lifters.
Youre getting loud valve train noise because where ever the bearings are damaged at, the clearances are high, oil is flowing right past and not getting to the lifters.
This sucks dude, I feel for ya. This place had just one person? I'd hunt him down and get my money back. Perhaps even call the cops. You hired this guy to perform a service, you pay him and he disappears. Sounds like he's gonna setup somewhere else and do just one job then "go out of business" again.
12 Second Club
Joined: Jul 2003
Posts: 3,371
Likes: 0
From: Atlanta
It was a small business whit 2-3 employee. Cant do nothing about it.
Anyway, the engine is out. I will open it tonight and keep you update. I found 2 shop arround 2hrs drive and they specialise in LS engine.
Anyway, the engine is out. I will open it tonight and keep you update. I found 2 shop arround 2hrs drive and they specialise in LS engine.
Well, case close. Engine need rebuilt
Crank Bearing #1
Crank Bearing #2
Crank Bearing #3
Crank Bearing #3 front (not shiny)
Crank Bearing #3 back (very shiny)
Crank Bearing #4 (On the left side, you can see some gold spot)
Crank Bearing #5
Crank Bearing #1
Crank Bearing #2
Crank Bearing #3
Crank Bearing #3 front (not shiny)
Crank Bearing #3 back (very shiny)
Crank Bearing #4 (On the left side, you can see some gold spot)
Crank Bearing #5