DanielRicany

I am getting weak oil flow at 3 of my rocker arms on the drivers side.

It still flows but not as much as the others.

I removed the rocker arm and pushrod and looked at the lifter, it looked like a pool of oil right below the lifter. I'm not sure if this was because of the oil that dripped out of the push rod or if that is where the oil is going when the engine is running.

I blew through the pushrod with my mouth and it was not clogged.

When I increase the RPMs, the oil flow at the affected rocker arms increases and you can see more coming out, however it is still weak compared to the rest at the same RPM.

I have a video of what's happening here: http://youtu.be/OvKfd0FTnmY

This is on a 1985 Corvette with a flat tappet cam.

Why is this happening?

Thanks

jv9999

As long as oil is getting to them and they are not clacking, I wouldn't worry about it.

cv67

x2
drive it

desertmike1

^^ x3

BOOT77

Are those three lifters spongy if you press down on them?

DanielRicany

No, hard as a rock.

It appears they will intermittently flow good. But the ones that have bad flow do not let the oil reach the valve stem tip unless the RPM is above idle.

cardo0

U are over scrutinizing it. Do u have any problems now? Lifter noise? Otherwise let it go man before your into a major overhaul.

DanielRicany

It's always had some slight lifter noise. Haven't been able to correct that and not too concerned about the little noise.

BOOT77

Swap rocker and pushrod with a good oiling set to rule them out.

edit: I'm sure you know, but just incase DON'T swap lifters