390 lifter noise
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Senior User
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From: Southeast Missouri
There's a lot of good information about some of this in this thread (but this guy was getting no oil) https://www.ford-trucks.com/forums/8...e-rockers.html
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Senior User
Joined: Dec 2015
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From: Southeast Missouri
When it’s running oil will slowly ooze oil of the holes in the rocker by the pushrods. Oil will also drip off the shaft and onto the collection tray and back down the intake. So while there dosent seem to be an Abundance of oil it is getting some. Honestly I need the truck and I’ve already spent too much on this engine after the 360 went. Is there any danger to just ignore the noise, say screw it and drive it for now?
Lead Driver
Joined: Oct 2018
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On the top end, not really. your rockers and push rods are toast already and if you have a little oil on the valve stems that's enough. your rods and mains are probably toast as well so as long as you quit before it trashes the crank, if it isn't already, you really don't have much to lose.
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Senior User
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From: Southeast Missouri
Laughing Gas
Joined: Apr 2018
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Are the special rocker shaft bolts in the correct locations?
https://www.ford-trucks.com/forums/1...-question.html
https://www.ford-trucks.com/forums/1...-question.html
Lead Driver
Joined: Oct 2018
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High volume pumps can cover for excessive tolerances for a while but wear is like a fire, the worse it gets the worse it gets.
Your problem is the opposite of most FE top end oiling problems. some guys put Holley jets in the oil feed hole to reduce the amount of oil holding up in the valve cover.
You could pull the rocker shaft and put a drill on the pump drive to see what's getting to the top end. but at the end of the day if the starvation is present on both sides it almost has to be a simple lack of oil pressure not a plugged galley or something.
Which leads to the other question, are you sure your pressure gauge is accurate? because while the pressure you claim isn't great it should be enough. with the wear you have on your rockers the oil should be pouring out of your valve train with any pressure. it doesn't make sense.
Your problem is the opposite of most FE top end oiling problems. some guys put Holley jets in the oil feed hole to reduce the amount of oil holding up in the valve cover.
You could pull the rocker shaft and put a drill on the pump drive to see what's getting to the top end. but at the end of the day if the starvation is present on both sides it almost has to be a simple lack of oil pressure not a plugged galley or something.
Which leads to the other question, are you sure your pressure gauge is accurate? because while the pressure you claim isn't great it should be enough. with the wear you have on your rockers the oil should be pouring out of your valve train with any pressure. it doesn't make sense.
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Laughing Gas
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Okay, a couple dumb questions for my own sake... you have a stock oil pan, dip stick, and it is reading full? Are you using an extra quart? I assume the pickup tube is in good shape?
Do you have another oil pump you can put on to see if that makes a difference?
Do you have another oil pump you can put on to see if that makes a difference?
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Senior User
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From: Southeast Missouri
Which leads to the other question, are you sure your pressure gauge is accurate? because while the pressure you claim isn't great it should be enough. with the wear you have on your rockers the oil should be pouring out of your valve train with any pressure. it doesn't make sense.
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Senior User
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From: Southeast Missouri
Stock 4x4 oil pan and pickup. I haven’t been able to track down a 4x4 dipstick and dipstick tube yet but I changed the oil and put in 6qts and remarked the 2x4 dipstick (temporally). The pickup appeared on good shape when I had the engine apart. I do t have a different oil pump but there still isn’t a large increase in the amount of oil in the top end When I rev the engine up (it’ll hold 50psi when warm)
Lead Driver
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50 should be sufficient, 10 lbs per 1000 RPM is the standard. though it seems a little lower than it should be for a new engine.
A quart low, a quart high, that isn't your problem.
If you have 50 lbs you need to start looking for where the noise is coming from and let the oil pressure go for now.
A quart low, a quart high, that isn't your problem.
If you have 50 lbs you need to start looking for where the noise is coming from and let the oil pressure go for now.
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Senior User
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From: Southeast Missouri
It’s not a new engine. I bought it used with no information other than it smoked when started (which it dosent). I just put in new gaskets and painted it.
On on another note I’ve been driving the truck for the last month with no change in the noise or oil pressure. It’s been running pretty good
On on another note I’ve been driving the truck for the last month with no change in the noise or oil pressure. It’s been running pretty good
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What head gaskets are you using? I'm just wondering if the oil hole in the gasket could be be partially blocking the oil passage from the block to the head. Has anyone ever encountered that, possibly with some brands of gaskets?
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Senior User
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From: Southeast Missouri
Not sure. Those are the only gaskets I didn’t replace. I didn’t pull the heads