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It started and the oil pressure jumped to 60psi immediately. Yea, happy dance, high five. It took a while to get it to idle down at 1000rpm, but it eventually started hitting on all eight and idled. I wanted the water temp to come up before I shut it down, but as the temperature came up, the oil pressure started coming down. 15 psi at 200 degrees idling. Damn it! I’ve been here before, so I shut it down. My 2002 LS1 crew cab never sees less than 30psi, and my LS7 427 Vert sees 100psi when cold and idles at 35-40psi when hot. Maybe the pickup o ring still isn’t in there right. You guys got any ideas. I can’t call blueprint till Monday I bet. https://youtu.be/bz8wHVDE0lk
maybe try a different gauge just to confirm it’s actually low, and not the gauge.
Also what weight oil is in it, and what brand
Over the weekend, I've dropped this oil pan three times. I can do it in my sleep now. I've tried the black o ring, the green o ring, and the red o ring. Same results. low oil pressure. Blueprint Engines has assigned a tech and a case #, so I'm waiting for their phone call before dropping the oil pan again. I am convinced that the problem has something to do with me changing the oil pan and pickup. The oil pump is pumping, I'm getting oil thru the engine, but the pressure is too low. I've got two oil pressure sensors, and I calibrated both pneumatically. The sensors and guage are good. I've located the sensors right next to the oil pump using the port there. I am very sure the orings are seated properly. I did get that wrong once, but you can see that with a flashlight, as oil drops fall in your hair. My partner here thinks there may be a pinhole leak in the pickup tube. Do you guys have any other ideas? I only have idle time on the engine. I'm not driving the car with the oil pressure this low. Been there, done that, got the t-shirt and a hat.
Bee Jay
PS I have 5w30 weight Driven break in oil in the sump.
I’m just thinking out loud, and I didn’t go back through your thread, but are you running an external oil cooler?
If so, could the length of the line, the way the line is run, or even the oil cooler itself be causing a low pressure condition?
Last edited by OldCarBum; Jan 20, 2020 at 03:38 PM.
Over the weekend, I've dropped this oil pan three times. I can do it in my sleep now. I've tried the black o ring, the green o ring, and the red o ring. Same results. low oil pressure. Blueprint Engines has assigned a tech and a case #, so I'm waiting for their phone call before dropping the oil pan again. I am convinced that the problem has something to do with me changing the oil pan and pickup. The oil pump is pumping, I'm getting oil thru the engine, but the pressure is too low. I've got two oil pressure sensors, and I calibrated both pneumatically. The sensors and guage are good. I've located the sensors right next to the oil pump using the port there. I am very sure the orings are seated properly. I did get that wrong once, but you can see that with a flashlight, as oil drops fall in your hair. My partner here thinks there may be a pinhole leak in the pickup tube. Do you guys have any other ideas? I only have idle time on the engine. I'm not driving the car with the oil pressure this low. Been there, done that, got the t-shirt and a hat.
Bee Jay
PS I have 5w30 weight Driven break in oil in the sump.
I would get that break in oil out of there, and put regular oil in, and see what the pressure does. I run 5-40 Schaeffer's Diesel synthetic in all the muscle car stuff I do.
I'm curious to hear what Blueprint has to say, because I'm baffled.
I know that some LS blocks have a screen in the oil pressure port (the one on top, behind the intake manifold) that can get clogged and and will give similar pressure readings (Starts normal, then drops to near zero). However, you said that you're using the port near the oil pump, so I don't think it should have any restrictions.
There are also some of LS motors with VVT/DOD that have a pressure relief valve and shield in the oil pan, but that shouldn't be an issue for you either since you're running the Holley oil pan.
One other thought is the little cover on the side of the oil pan. Do you have an oil cooler, an accumulator, or anything else connected here, or is it just a simple cover connecting the two ports?
I'm curious to hear what Blueprint has to say, because I'm baffled.
I know that some LS blocks have a screen in the oil pressure port (the one on top, behind the intake manifold) that can get clogged and and will give similar pressure readings (Starts normal, then drops to near zero). However, you said that you're using the port near the oil pump, so I don't think it should have any restrictions.
There are also some of LS motors with VVT/DOD that have a pressure relief valve and shield in the oil pan, but that shouldn't be an issue for you either since you're running the Holley oil pan.
One other thought is the little cover on the side of the oil pan. Do you have an oil cooler, an accumulator, or anything else connected here, or is it just a simple cover connecting the two ports?
-Chris
I’m still waiting for the tech to call. No worries as yesterday was a holiday. At a friends recommendation, I did mount a second sensor above the oil filter. Same results, actually lower. He also said the pickup tube may have a pinhole leak, so the next time I drop the oil pan, I’ll inspect it carefully. I really hope I’m doing something wrong with the o ring. I have dreaded thoughts of tearing the front of this engine apart to replace the oil pump, or even worse, pulling the engine out.
You installed a valley cover that doesn't have the o-rings on the bottom. If your block is machined for DOD then the oil ports mustbe npt tapped and pipe plugs installed. Can you confirm that the block doesn't have these oil passages present?
You installed a valley cover that doesn't have the o-rings on the bottom. If your block is machined for DOD then the oil ports must be npt tapped and pipe plugs installed. Can you confirm that the block doesn't have these oil passages present?
Ding, ding, ding.....I think we have a winner!
The LS3 block should have AFM/DOD bosses that need to be plugged.
GM "plugged" these on non-DOD engines by using a valley cover that had o-rings to seal the top of those bosses.
If your Summit valley cover doesn't have those o-rings, like KENS80V said, then you have eight internal oil leaks.
The LS3 block should have AFM/DOD bosses that need to be plugged.
GM "plugged" these on non-DOD engines by using a valley cover that had o-rings to seal the top of those bosses.
If your Summit valley cover doesn't have those o-rings, like KENS80V said, then you have eight internal oil leaks.
-Chris
Are you freakin' kidding me? No, I don't think the summit valley cover had those. https://www.summitracing.com/parts/sum-240058
I can slap the original valley cover on and see. Then I will need a way to add oil. I wonder if I can drill a hole in the original valley cover for a plug to add oil. Dammit. I'm taking a long lunch break today. I'll get back to you soon.
Bee Jay
I just hugged and kissed my wife for no reason. She said, your car must be fixed. I just smiled. She knows me.
The Blueprint Engine Tech just called. I explained the problem I had. He wanted to know the Summit part number. First time he had this problem.
I just hugged and kissed my wife for no reason. She said, your car must be fixed. I just smiled. She knows me.
The Blueprint Engine Tech just called. I explained the problem I had. He wanted to know the Summit part number. First time he had this problem.
Make sure someone films the first tire roast, and post it up here
From: Las Vegas - Just stop perpetuating myths please.
Originally Posted by Bee Jay
I just hugged and kissed my wife for no reason. She said, your car must be fixed. I just smiled. She knows me.
The Blueprint Engine Tech just called. I explained the problem I had. He wanted to know the Summit part number. First time he had this problem.
Makes me wonder how many BluePrint LSX owners are driving theirs with low oil pressure?
