New cam, but problems
New cam, but problems My buddy and I just installed the cam into my LS1 T/A... specs are 232/230 .580/.580 110LSA... the first problem we ran into the other day was that when it started, it sounds bad-***, and ran fine, but then once it was completely warmed up, it started ticking really hard from the valvetrain and the oil pressure suddenly dropped really bad... Well, as we looked around, he saw that he forgot to put the little o-ring from the old oil-pump into the new ported LS6 oil pump. Ok, so whew! problem averted there!...
But now the next, current problem... The car now keeps decent oil pressure, around 30 at warm idle, but once everythign is warmed up for a few mins, the hard ticking comes back... It runs/sounds awesome the whole way warming up, and for the first few mintues that its at full temperature. But then, like i said - it starts that really loud ticking again. My buddy said its b/c the lifters are collapsing for some reason. He's thinkin maybe the springs i put in (dual springs good for up to .650 lift) might be too strong for the lifters, and are bleeding them out once the oil gets really hot and thinned out....
So, today he is going to try a higher weight oil to see if that will help it out (20W50 i think is what he's gonna try - I heard of ppl doing this with this engine) ... but, are there any other thoughts on this? Anythign i can do? would new lifters be stronger, and make this quit?
i just need a little help/suggestions. Thanks!
But now the next, current problem... The car now keeps decent oil pressure, around 30 at warm idle, but once everythign is warmed up for a few mins, the hard ticking comes back... It runs/sounds awesome the whole way warming up, and for the first few mintues that its at full temperature. But then, like i said - it starts that really loud ticking again. My buddy said its b/c the lifters are collapsing for some reason. He's thinkin maybe the springs i put in (dual springs good for up to .650 lift) might be too strong for the lifters, and are bleeding them out once the oil gets really hot and thinned out....
So, today he is going to try a higher weight oil to see if that will help it out (20W50 i think is what he's gonna try - I heard of ppl doing this with this engine) ... but, are there any other thoughts on this? Anythign i can do? would new lifters be stronger, and make this quit?
i just need a little help/suggestions. Thanks!
Well, as we looked around, he saw that he forgot to put the little o-ring from the old oil-pump into the new ported LS6 oil pump.
The car now keeps decent oil pressure, around 30 at warm idle
I would replace that o-ring with a new one. Putting the old one back in, you could have not put it in right and that would explain the low oil pressure.
After you replace the o-ring, try letting it warm up again. If the ticking persists then you might have a bad lifter.
i used the stock pushrods....
it is a Patriot cam, but is still a comp cam i believe...
i will have him check out the o-ring agani, but that means a lot of tear down AGAIN... its just that little rubber ring that goes where the oil pump connects to w/e hooks into it from underneath... (i'm guessing coming from the oil filter or something)... how could you pinch it... it just plops right into there... and NO, it didn't come with that ring...
it is a Patriot cam, but is still a comp cam i believe...
i will have him check out the o-ring agani, but that means a lot of tear down AGAIN... its just that little rubber ring that goes where the oil pump connects to w/e hooks into it from underneath... (i'm guessing coming from the oil filter or something)... how could you pinch it... it just plops right into there... and NO, it didn't come with that ring...
and... am i not correct in the assumption that oil pressure is a relative term.... b/w flow and resistance... so if its flowing well, but maybe there isn't as good of resistance (thus lower pressure), that doesnt mean that there's not enough oil getting to the parts....
am i right?
am i right?
Duel springs and stock pushrods is a bad, bad combo. The stock pushrods will bend under that kind of spring pressure. Not to mention that you may also benifit from a slightly longer pushrods, if I'm not mistaken.
I'd pull it apart and check the oil pump and also put some chromemoly hardened pushrods in there. You might want to invest in a pushrod length checker - $20(?).
Good luck
I'd pull it apart and check the oil pump and also put some chromemoly hardened pushrods in there. You might want to invest in a pushrod length checker - $20(?).
Good luck
Last edited by ShevrolayZ28; May 11, 2006 at 10:02 AM.
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From: BFE
I bet my Lifesavers that you bent your p-rods.
You need hardened pushrods with the seat pressures on those springs.
Dissasemble, and put 7.425 p-rods. Comp cams.
Do not use 20W50 with the LS1. It does't like that.
Use either 0W40 or similar.
Change the O-ring.
You need hardened pushrods with the seat pressures on those springs.
Dissasemble, and put 7.425 p-rods. Comp cams.
Do not use 20W50 with the LS1. It does't like that.
Use either 0W40 or similar.
Change the O-ring.
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ok... thanks for the help guys, i really appreciate it, but why woudl it wait until it got hot to start ticking? wouldnt bent pushrods just tick hard all the time?
Originally Posted by ShevrolayZ28
While you are in there, if it is not already equipt, you may want to install an LS6 oil pump.
Originally Posted by SonofaBish
ok... thanks for the help guys, i really appreciate it, but why woudl it wait until it got hot to start ticking? wouldnt bent pushrods just tick hard all the time?
any more thoughts?? my buddy ran it, let it cool down, ran it, let it cool down, ran it... all day long... not a problem
then i got there tonite and ran it around a little bit... everythign seemed fine... but then i took it back to his shop... and after it sat for about 30 seconds or 45 it slowly started to come back and tick hard again
then i got there tonite and ran it around a little bit... everythign seemed fine... but then i took it back to his shop... and after it sat for about 30 seconds or 45 it slowly started to come back and tick hard again
i don't understand... HOW? if the damn thing doesn't tick when its cold... or even half the time when its warm, then how does that imply that there is a bent pushrod??
i'm not getting an attitude, i'm just trying to understand this... i dont see how that is possible...
i'm not getting an attitude, i'm just trying to understand this... i dont see how that is possible...
On The Tree
Joined: Jul 2002
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From: tampa fl.
Originally Posted by SonofaBish
My buddy said its b/c the lifters are collapsing for some reason. He's thinkin maybe the springs i put in (dual springs good for up to .650 lift) might be too strong for the lifters, and are bleeding them out once the oil gets really hot and thinned out....
So, today he is going to try a higher weight oil to see if that will help it out (20W50 i think is what he's gonna try -!
So, today he is going to try a higher weight oil to see if that will help it out (20W50 i think is what he's gonna try -!
Oil is it's thinnest when it's cold and it's thickest when it's warm, so there goes that theory
