Oil pressure issue with new ERL 434ci engine.
05-09-2012, 08:55 AM
#41
Snyper
So was the rear cover on the engine when you got it?
So was the rear cover on the engine when you got it?
03-30-2013, 09:02 AM
#45
Teching In
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Hey, OP, any update on this? What sort of machine work was required to repair the block and crank?
I have a big cube sleeved LS3 and I've had this exact same oil pressure issue, including the same pressure range when varying viscous properties of the oil. Additionally, after driving about 2500 miles, I've found the copper metallic particles in my oil along with a few small slivers of silver. The rods weren't knocking nor was the engine making any unexpected noises, but I'm certainly tearing it down to find the source of the problem. This is my first LSX teardown, and first engine I've had fail. I'm hoping I caught it early enough that only a cam and a polish on the crank is needed along with all new bearings...perhaps this is wishful thinking.
I have a big cube sleeved LS3 and I've had this exact same oil pressure issue, including the same pressure range when varying viscous properties of the oil. Additionally, after driving about 2500 miles, I've found the copper metallic particles in my oil along with a few small slivers of silver. The rods weren't knocking nor was the engine making any unexpected noises, but I'm certainly tearing it down to find the source of the problem. This is my first LSX teardown, and first engine I've had fail. I'm hoping I caught it early enough that only a cam and a polish on the crank is needed along with all new bearings...perhaps this is wishful thinking.
Last edited by mkent93; 03-30-2013 at 09:05 AM. Reason: spelling
05-13-2021, 06:32 PM
#46
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Im going to make a new thread so I can explain a little better what the issues are.
Running a melling HV pump with red spring installed.
Upon initial start up the rear barbell was left out of the block. I had about 45-60 seconds of turning the engine over with the starter then about 30 seconds or so with the engine running to which I was only getting 10psi of oil and no oil to the lifters or top of the engine.
Installed the barbell (and running 10w/40) car started up and immediately had 50psi of oil pressure. Once the car got up to operating temp the oil sat around 18psi of oil at 900rpm idle.(big cam) By 1200 rpms oil pressure is at around 30 and by 2,000 rpms oil pressure at 40. Now with the 10/40 I noticed that while getting on it from 2k to about 6 oil pressure only climbed about 5psi and leveled off around 45psi.
Switched to 20w50. Cold start up oil pressure is around 55-60 and when I rev the engine it shoots to about 80psi. Once the car warms up...18psi of idle and does the exactly same thing as with the 10/40. 40psi by 2k and settles to a max of about 45psi by 6500rpms.
One thing I notice is that cruising at around 3krpm the oil pressure is around 40..and if I apply load to the gas pedal the oil pressure dips about 2psi and stays there till I let off the gas (say from 3-3300) and then it shoots back up about 2-3psi.
I cut open my first and second oil filter and didnt notice anything out of the ordinary. I did however see only 1 extremely tiny chome/copper looking flake and that was it. The first oil change was grey sludge and the second oil change had the bronze dust in it which is normal on the first few oil changes.
I was getting a little bit of blowby out of the valve covers for the first 20 miles or so but it is completely gone now. I also notice I have a pretty bad leak coming from what it looks like could be my rear main seal. When I installed the barbell I didn't RTV the back cover upon putting it back on which is probably responsible for the leak.
Anyone have any input as to what is causing these issues? My first thought would be bearing material...but im reading o-rings could have similar symptoms.
Running a melling HV pump with red spring installed.
Upon initial start up the rear barbell was left out of the block. I had about 45-60 seconds of turning the engine over with the starter then about 30 seconds or so with the engine running to which I was only getting 10psi of oil and no oil to the lifters or top of the engine.
Installed the barbell (and running 10w/40) car started up and immediately had 50psi of oil pressure. Once the car got up to operating temp the oil sat around 18psi of oil at 900rpm idle.(big cam) By 1200 rpms oil pressure is at around 30 and by 2,000 rpms oil pressure at 40. Now with the 10/40 I noticed that while getting on it from 2k to about 6 oil pressure only climbed about 5psi and leveled off around 45psi.
Switched to 20w50. Cold start up oil pressure is around 55-60 and when I rev the engine it shoots to about 80psi. Once the car warms up...18psi of idle and does the exactly same thing as with the 10/40. 40psi by 2k and settles to a max of about 45psi by 6500rpms.
One thing I notice is that cruising at around 3krpm the oil pressure is around 40..and if I apply load to the gas pedal the oil pressure dips about 2psi and stays there till I let off the gas (say from 3-3300) and then it shoots back up about 2-3psi.
I cut open my first and second oil filter and didnt notice anything out of the ordinary. I did however see only 1 extremely tiny chome/copper looking flake and that was it. The first oil change was grey sludge and the second oil change had the bronze dust in it which is normal on the first few oil changes.
I was getting a little bit of blowby out of the valve covers for the first 20 miles or so but it is completely gone now. I also notice I have a pretty bad leak coming from what it looks like could be my rear main seal. When I installed the barbell I didn't RTV the back cover upon putting it back on which is probably responsible for the leak.
Anyone have any input as to what is causing these issues? My first thought would be bearing material...but im reading o-rings could have similar symptoms.
05-13-2021, 07:37 PM
#48
ModSquad
iTrader: (6)
05-14-2021, 12:10 AM
#49
TECH Senior Member
Dude. You're replying to an OLD (9 yrs.) thread. Watch the post dates.
Last edited by G Atsma; 05-14-2021 at 12:12 AM. Reason: (
05-21-2021, 04:02 PM
#50
ERL doesn’t have a good rep either. I’ve read a few issues with oil pressure but they did have the purchaser leaving out the barbell. You would think they would have a statement plastered over the paperwork saying it’s up to the customer to install the oil barbell
