Rocker problem. HELP!!

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Coyote Jack

Coyote Jack

Member #55, I'm old
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I finally got to hear the engine with full exhaust on. I noticed a tapping coming from the engine and shut it down.I pulled the drivers side valve cover off and found the rocker 3rd from the back was loose. I took it off and inspected it and all looked well. I put it back on and started the engine. The noise was gone but then I noticed that there was no oil coming to that rocker. All the rest were getting plenty of oil. The engine is a 360 with magnum heads and 1.6 rockers. The engine sat for 2 years after being built.

Is it a clogged oil passage? Something else?

Any and all suggestions will help.

Jack
 
check the pushrod oiling hole or where the other rockers are getting oil from.
 
First question is what type of valve train are you running,stock or roller rockers.Are the rocker shafts on the correct sides?The stock oiling system runs through the rocker shaft,on the old small blcoks.And if they are on wrong you get very little to no oiling to the rockers.he magnum system uses oil through the push rods to each rocker.You have to have the lifters and push rods to supply oil to the rockers.I would take out the lifter and push rod to check each one and see if the rockers is pumping up.Even get a drill and remove the distributor and prime the motor with a oil pump drive and see if oil is coming out of the lifter and coming through the push rod,and blow out the push rod to see if its blocked,Mrmoaprtech
 
If they are roller r0ckers shaft the oil holes need to be in the correct position.Usually the shaft has a notch cut out and they go fwd or backward depending on manufactor..Read the directions..Good Luck...
 
O.K.

Here is the story. I did not build the engine.

The rockers are individually mounted. No rocker shaft. The push rod is clear. The only marking on the rocker is an "X" on the little tab that deflects the oil when it comes through the rocker. The rockers are stamped steel. Strange it didn't have a pentastar on it somewhere. There does not seam to be any galling anywhere on the rocker or the top of the valve stem or the end of the pushrod. The mounting stud area also looks good.

Mrmopartech, I think your idea of priming is the next step. I will try that tomorrow night.

Jack
 
Ok,heres what you ned to do a magnum head swap to a early block conversion.This set up needs a basic chevy oiling system to work.
You have to get AMC lifters to get the system to work.The AMC lifter has the hole in the plunger cup to allow oil to be pushed up through the push rod to oil the rockers.As you know,the magnum heads are indivinual rocker assemblies and need their separate oiling supply,which is done by each lifter.The old system filled a hollow shaft and filled the shaft and allowed common oiling to all rockers for a stock stamped rocker.This oiling came through a drill hole in the block and feed through a matching hole in the heads to a stud boss that held the shaft i place.In the magnum,its a seperate oiling supply to each rockers on its own.Now you need to do this,prime the engine with a 1/2 inch drill and the proper tool to adapted to the oil pump drive and see if while running the drill that oil is getting to some or all rockers.If not,just remove the rocker shafts on both sides and do it again,what push rods are suppling oil?The ones not suppling,remove the lifters and check for a hole in the plunger cup,or if they are collasped down,and replace the ones not working.You may have one not working or the wrong one,or more than that,Mrmopartech
 
When I ran the engine on Sunday the only rocker not getting oil was the one in question. All of the rest were getting plenty of oil. I will do the priming test tonight and give you a call. I plan on doing it 2 ways. First with all of the valve train in place. Then if there is still a problem I will take the intake off and see if the problem is down at the lifter.

Jack
 
I blew through the pushrod with no problem and nothing came out the end. I would have loved for it to be a clogged pushrod.

Jack
 
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