New motor knocking???

Dennis197SD

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Aug 15, 2019
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Did you prime oil pump motor before cranking? 80 psi???? Oil should be pouring off rocker arms. Something seems blocked! If you purchased motor local, perhaps you should have them examine it.
Yes I did. I primed with a drill but I never did get oil up to rockers because it was coming out of distributor lube point(or at least I thought that's why) that's where im confused... with that oil pressure I should have all kinds of oil coming out no matter what it's in the oil
 

tank1949

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The only reason I don't see it coming from the manifolds is i never had any of this before putting this new motor in..

So I dropped the oil... this is it. 4 hours tops on this engine...I dont know if that's water or assembly lube making it like that but if it was water shouldn't I have increased oil level? And if it's watery why isn't it coming out of my my rods with 80psi?
I suspect that you have a faulty motor! Assuming manifolds and riders are in good or new shape.
 

Dennis197SD

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PS:

I did a top end overhaul on mine 4 years ago and engine noise was basically the same after the replacement of cylinder heads.
What you're calling assembly lube looks like water in the oil....I did a top end overhaul because I had 2 blown head gaskets due to an overheat 3 years prior, the water in the oil also will raise the oil pressure because water is more dense than water, the inside of my valve covers looked exactly like that.

if you pull the spark plugs and crank it over does any water come out of the cyls? If so it could be those one piece manifolds, I'd check that out before doing anything else. There are other tests to determine if your cooling system is not holding pressure and/or you have combustion gases leaking into the cooling water. Check the manifolds first then if they show signs of leaking dump them in the trash and get the Barr Marine conversion kit.
I will check for water coming from the plugs after work. When you removed the white stuff from the valve covers was it like a grease? The stuff coming off mine is like a lotion... almost identical to assembly lube is why I assumed that's what it was
 

Dennis197SD

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Yes I did. I primed with a drill but I never did get oil up to rockers because it was coming out of distributor lube point(or at least I thought that's why) that's where im confused... with that oil pressure I should have all kinds of oil coming out no matter what it's in the oil
I ordered the motor online.... from Texas. I'm in Illinois
 

Dennis197SD

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I can definitely claim the warranty but wanna make sure it's not something on my end. The oil is concerning...I put fresh in and well see what it looks like
 

wshekar

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The only reason I don't see it coming from the manifolds is i never had any of this before putting this new motor in..

So I dropped the oil... this is it. 4 hours tops on this engine...I dont know if that's water or assembly lube making it like that but if it was water shouldn't I have increased oil level? And if it's watery why isn't it coming out of my my rods with 80psi?
Water in oil. I would be concerned the internals are trashed. Check for metal in that oil and in the filter. Water in oil will make it froth, not surprising so oil to the lifters. High oil pressure, no flow.

Probably best to start the warranty process and hope it wasn't those exhaust manifolds.
 
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Lou C

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well that looks like water, I did not use assembly lube when I did my top end overhaul, what I did was just squirt Mobil 1 from my oil can on the cam lobes, lifters, pushrods, etc. Then before starting, I grounded the high tension lead of the coil and cranked it till I saw oil pressure on the gauge. Then started it up and that was the vid I posted above.

you could take a sample of this, put it in a glass jar like a Mason jar, and let it sit. see if a layer of water appears on the bottom. if not maybe it is assembly lube but it would be good to know.
what led to the failure of the old engine?
when I did mine it was a gamble, I actually had salt water in the oil, changed it 4 times, pickled the engine well, then took it apart, rolled the dice and put a set of reman heads on it. Turned out OK but was a gamble, for sure.
 

Dennis197SD

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well that looks like water, I did not use assembly lube when I did my top end overhaul, what I did was just squirt Mobil 1 from my oil can on the cam lobes, lifters, pushrods, etc. Then before starting, I grounded the high tension lead of the coil and cranked it till I saw oil pressure on the gauge. Then started it up and that was the vid I posted above.

you could take a sample of this, put it in a glass jar like a Mason jar, and let it sit. see if a layer of water appears on the bottom. if not maybe it is assembly lube but it would be good to know.
what led to the failure of the old engine?
when I did mine it was a gamble, I actually had salt water in the oil, changed it 4 times, pickled the engine well, then took it apart, rolled the dice and put a set of reman heads on it. Turned out OK but was a gamble, for sure.
I threw a rod bearing. No sign of anything abnormal in oil or in the rest of the engine... any idea how long that takes? I still have the oil in the pan from yesterday
 

Lou C

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Well it’s hard to say but normally you’d get noise suggesting that but of course it can be tough to track these things down.
So I’d put some of that oil in a clear container and let it sit for a day & see if any water settles out. If not it could be assembly lube.
These engines (Vortec) also had trouble with the intake gaskets leaking around the water ports for the intake, that can put water right in the cam valley and into the oil. They changed the gaskets to correct this but also there was confusion with the torque specs. The older pre Vortec was like 30-35 ft lbs but the Vortec was much lower like 10-12 or something like that.
 

Scott06

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Yes I did. I primed with a drill but I never did get oil up to rockers because it was coming out of distributor lube point(or at least I thought that's why) that's where im confused... with that oil pressure I should have all kinds of oil coming out no matter what it's in the oil
What is the distributor lube point? if you primed with a dril the oil should be coming out all rocker arms. Not sure if any oil gallery plugs being missed during assmbly would do this. I would defintely discuss with whoever supplied the reman before you get too far into it.

Agree with others on the oil change it and see if it stays clear
 

Dennis197SD

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Well it’s hard to say but normally you’d get noise suggesting that but of course it can be tough to track these things down.
So I’d put some of that oil in a clear container and let it sit for a day & see if any water settles out. If not it could be assembly lube.
These engines (Vortec) also had trouble with the intake gaskets leaking around the water ports for the intake, that can put water right in the cam valley and into the oil. They changed the gaskets to correct this but also there was confusion with the torque specs. The older pre Vortec was like 30-35 ft lbs but the Vortec was much lower like 10-12 or something like that.
Im hoping to see something after work today...I greatly appreciate everyone's input.
 

Dennis197SD

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What is the distributor lube point? if you primed with a dril the oil should be coming out all rocker arms. Not sure if any oil gallery plugs being missed during assmbly would do this. I would defintely discuss with whoever supplied the reman before you get too far into it.

Agree with others on the oil change it and see if it stays clear
Just the port that supplies the distributor with oil. Everything was coming out of that and never came out of the rockers. I just had my wife check the oil pan and said the oils on the bottom and the same residue is on the top.... but doesn't see or feel any water
 

Dennis197SD

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My wife just took these.. she said oil on bottom and the same residue that's in the valve covers on top.... doesn't feel or see any water... this has been sitting since 4pm yesterday... I'm not sure if that's enough time but that's the status
 

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tank1949

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I can definitely claim the warranty but wanna make sure it's not something on my end. The oil is concerning...I put fresh in and well see what it looks like
If primer tool can't pump clean oil to lifters, something is blocked. Call mfg and ask for advice!
 

tpenfield

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I can definitely claim the warranty but wanna make sure it's not something on my end. The oil is concerning...I put fresh in and well see what it looks like
I would imagine when you go to put in the warranty claim, you may find out who's fault they think it is . . . :(
 

Dennis197SD

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So I just pulled the distributor abs it has actual water droplets on it.. . Sooooo not good. And it looks like it's from the intake to block so I'm asking either intake gaskets or head gaskets. I can't work in it again till Sunday but I'm keep you guys updated. Thanks again for all the comments
 

Dennis197SD

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So I just pulled the distributor abs it has actual water droplets on it.. . Sooooo not good. And it looks like it's from the intake to block so I'm asking either intake gaskets or head gaskets. I can't work in it again till Sunday but I'm keep you guys updated. Thanks again for all the comments
Wow. Shouldve spell checked this one
Im thinking either intake or head gaskets*
But I'll keep you guys updated*
 

Lou C

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Before you take it all apart there is an air pressure test you can do to determine if the cooling system holds pressure; and also with the boat in the water you can replace the manifold feed hoses with clear hose, and run it till the stat opens, if you see bubbles in the cooling water that’s a sign that combustion gas is getting into the cooling water (suspects: blown HGs, cracked heads) When I had water in the oil, I also had water in a cyl and bubbles in the cooling water. Tear down revealed bad head gaskets and when I took the heads to a machine shop they found cracks in the exhaust valve seats in the center cyls on each side.
However your case may be as simple as leaky intake gaskets. But if you don’t do that test you won’t know about the HGs till you pull the heads. Might want to do these tests and a comp test & report that to the company you bought it from. Just keep changing the oil and drain the water out after running. Lastly I’d for sure check those manifolds for leaks too.
 
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