Should i be concerned? Rocker oiling deficit

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clementine

clementine

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Hi FABO.

I have been hearing a ticky tick. Upon removing the passengers valve cover i find a couple rockers with a bit less oil than the others. Still figuring out how to post the video.

383. Stocker type build

Spacing what other information is pertinent.

Ideas?

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Looks like those 2 rockers are dry,,,,you should check them closely .
The shaft oiling always worked well,,,,and usually fairly uniform .
You either have a shaft stopped up,,,or the holes in those rockers are not opened correctly .
There should be a hole to lube the pushrod cup as well,,,,,or at least some orifice to get lube to the tip .

Tommy
 
Desoto291hemi said:
Looks like those 2 rockers are dry,,,,you should check them closely .
The shaft oiling always worked well,,,,and usually fairly uniform .
You either have a shaft stopped up,,,or the holes in those rockers are not opened correctly .
There should be a hole to lube the pushrod cup as well,,,,,or at least some orifice to get lube to the tip .

Tommy
Click to expand...
My assumption that the shafts are in their assigned side (passenger/driver) and some of them are getting oil…..ya, something is up with the hole.

Turn over engine by hand and check for hole lining up……if it lines up….

Pull the rocker shaft
Check for gunk.

Is my assumption wrong in that some rockers can receive oil when in the incorrect side?

Do the shafts even have an assigned side?

TIA
 
No,,,the shafts can go either side,,,however ,,,,the shaft has to be oriented correctly to the side it’s on .
Example,,,,,the oil holes and or banana grooves for the rockers align with the bottom to feed the oil to where it supports the load best .
Pull up a diagram on the internet and you’ll see what I mean .
They will operate even if they are oriented wrong,,,,but will not support the loaded rocker as well .
That is not the case with your shafts,,,,,if they were wrong ,,,,all of the rockers would be oiling the same .

Tommy
 
All of the shafts that I have seen for that type rockers have the second hole in on each end enlarged slightly for the oil to get into. The holes will line up either way, so you can't put them on the wrong side like you can stock rocker shafts if you goof up. They could be stopped up or something. Pull them off and see if the banana groves are facing down like they are supposed to, and check the oil holes...especially the ones that seem to have less oil. You might have to pull the end plugs out and run a round engine brush thru them hooked to a drill and clean them out.
 
Pull the rocker shafts and make sure the small oil holes are on the bottom and -- when looked at in relation to the hold down bolts -- are angled toward the valve springs or exhaust side of the pedestal. That's the first thing. JDMopar is right. All aftermarket rocker shafts that I've ever seen have both the second and fourth holes on the bottom of the shaft enlarged to accommodate the oil path through the pedestal arm. Stock shafts had only one hole enlarged (either second from right or second from left, depending on which side rocker shaft it was). If the shafts are orientated correctly, clean out the small weep holes on the rocker arms and clean out the inside of the shaft.
 
Make sure all the holes are unblocked and that you have nanner grooved shafts.
 
if those rocker shafts are stock the the groove on end of shaft is installed right rear and oil holes facing down.why not run a test and take the assembly off and turn the engine over and look at #4 journal on cam and see if oil squirts out.
 
“What I would do” is………
Run it with the valve covers off and see if oil is coming from those holes on the suspect rockers, or not.
If not, I’d be pulling the rockers off and pulling them off the shafts to try and determine where the blockage is.
 
PRH said:
“What I would do” is………
Run it with the valve covers off and see if oil is coming from those holes on the suspect rockers, or not.
If not, I’d be pulling the rockers off and pulling them off the shafts to try and determine where the blockage is.
Click to expand...
The pictures from original post are from a video I shot but i was challenged to upload.

Challenged failed.

Those pics are from the passenger side. Ill pull both valve covers and check while running. I don't hear a ticky tick from the drivers side but may as well check the whole shitteroo if Im wading in.

Kind of a messy job, but seems important.
 
here is the latest startup pics.

#2 intake is the one not getting much (although some) oil.

When the pushrod/lifter is on the heel of the cam, that is when the holes line up for oiling. I can see the holes or use a dental pick to find them lining up on the other rockers, just not this one.

Many do not perfectly line up but enough to let oil by.

Tiny drill job?

I have not removed rocker assembly yet just filling ya’ll in before i run the dog and get back to it.

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The geometry likely needs correcting. Since you have the valve covers off, call Mike @ B3 Racing Engines and he can help you make that determination. @B3RE
 
Looks good to me, I bet there's a bunch of oil flying around at RPM. Usually is.
 
fishmens67 said:
Looks good to me, I bet there's a bunch of oil flying around at RPM. Usually is.
Click to expand...
The problem is when the rocker slides lateral (in this case aft) the hole doesn't show at all. When the rocker slides all the way forward, only a TINY sliver appears. I don't hear a ticky tick ALL the time. I'm gonna pull the assembly, check to see if its mucked, then probably make the hole slight larger to the aft side.

@RustyRatRod
I did read Mikes article about geometry. Im running a sub 500 lift cam and when I look at the pushrod to adjuster angle, Im not seeing anything crazy angularity wise. I do appreciate the suggestion, but before I take Mikes time I will do a little more sleuthing.
 
Do those rockers have a split bushing or a one piece bushing??

If it’s a one piece there should be a stream coming out those holes that would hit the ceiling.

If it has split bushing the hole must be lined up with the split you’ll get reduced or no oil.
 
Newbomb Turk said:
Do those rockers have a split bushing or a one piece bushing??

If it’s a one piece there should be a stream coming out those holes that would hit the ceiling.

If it has split bushing the hole must be lined up with the split you’ll get reduced or no oil.
Click to expand...
There is a groove inside just adjacent to the hole.

Sorry, I don't know the difference. comp cams piece.
 
The shafts are not upside down are they ? That will definitely screw up the oiling pattern.
 
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