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Low oil pressure problem PLEASE HELP

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Old 09-15-2010, 06:42 PM
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Originally Posted by ss.slp.ls1
Tear down the bottom end and do a full rebuild.
jezuz effin christ.. smh i havent had this thing for more than 100 miles yet and already dealin with this... gonna do this mechanical guage test and go from there
Old 09-16-2010, 02:29 AM
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ouch man srry that sucks...
Old 09-16-2010, 09:04 AM
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if the gage is accurate, you can drive it until it starts knocking i guess.. but by that time extensive machine work (which is the most expensive part of a rebuild) will be required... i drove my 97 lt1 like that for about 7000 miles with low pressure before it started knocking. i thought it was a funky gage but it was just the beginning of engine fail.. verify pressure at idle, under load, and a wot... you will see increases under load and mod acceleration but under wot it should drop significantly... id like to know what happens, just for my own reference..
Old 09-16-2010, 12:35 PM
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https://ls1tech.com/forums/generatio...only-ls1s.html

I'm at 35-40 psi at cold start up then 25ish psi when hot and 40 psi at cruise via a mechanical gauge. Has been running this way w/o any problems for over a year, thought about shimming the oil pump to increase pressure but haven't got around to it.
Old 09-16-2010, 05:07 PM
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Originally Posted by chevyrunner
jezuz effin christ.. smh i havent had this thing for more than 100 miles yet and already dealin with this... gonna do this mechanical guage test and go from there
Don't feel bad B, thats why I'm not driivng mine right now
Old 09-16-2010, 07:05 PM
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Originally Posted by ss.slp.ls1
Tear down the bottom end and do a full rebuild.
id listen to him...
Old 09-17-2010, 03:50 AM
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so to all parties interested, installed the mechanical guage and it read worse than the dash guage. on cold start it read 20 psi on VR1 50 oil smh and on hot idle it was down to like 10... how do you like them apples. so cars gonna be down, and hopefully this next rebuild fixes it... good thing is while its out a bigger cam is goin in... silver lining right?
Old 09-17-2010, 06:35 AM
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stay positive brother....
Old 09-17-2010, 10:47 AM
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Originally Posted by ANTICOP RAM AIR
stay positive brother....
exactly. i blew my engine this past january and it sucked but the good thing was i get to put a better engine in it. currently it's a stock LS1 from a 2000 Z28 but i'm saving for a new engine to go in with a nice cam. keep your chin up OP
Old 09-17-2010, 10:51 AM
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Machine shop blunder, what can you do. A much better cam will be going in. You'll be happy when it's all said and done.
Old 09-17-2010, 07:45 PM
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This wasnt a newly rebuilt motor was it? How could it be a machine shop blunder?

Sucks to hear man..its a risk you take when swapping in a used motor. You can't really be too sure how well the previous owner took care of it and how strong and healthy it is..I've learned this lesson the hard way. Twice
Old 09-20-2010, 05:38 AM
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Originally Posted by MSS91Z28
This wasnt a newly rebuilt motor was it? How could it be a machine shop blunder?

Sucks to hear man..its a risk you take when swapping in a used motor. You can't really be too sure how well the previous owner took care of it and how strong and healthy it is..I've learned this lesson the hard way. Twice
From what I know, it was a freshly rebuild engine. Maybe the clearances were off or a bearing was installed incorrectly, I don't know. But the engine will be replaced under warranty.
Old 09-20-2010, 12:31 PM
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I didnt know this was a new motor. Good thing I pointed out the oil press. gauge to him.... could have been a lot worse.
Old 09-20-2010, 02:16 PM
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Originally Posted by Greg@RET
I didnt know this was a new motor. Good thing I pointed out the oil press. gauge to him.... could have been a lot worse.
good man
Old 09-20-2010, 02:18 PM
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Originally Posted by chevyrunner
silver lining right?
Always



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