Help...No oil pumping to cylinder heads

[Banzaiii67]

I recently had a set of 516 heads re-done and was in the process of installing them over the weekend, got it all finished and cranked it over and couldn't get any oil pressure to my gauge.

So off went the driver side valve cover for closer inspection, I'm a fool for thinking it was going to easy. Waste of a valve cover gasket.

It had been sitting for several months, maybe the engine lost it prime ? So I proceed to prime it, pretty quickly I got oil pressure back up into the gauge but still no oil in the cylinder head.

I put the the distributor and gear back as close to where I had, and than turned it over 180 degrees thinking the cam wasn't in the right rotation. Pulled the distributor and the gear out again, primed it for close to 1 minute, two times still no oil in the head.

I am certain the oil holes on the rocker shaft are down, however I'm not 100% sure I had the "notch" of the rocker shaft facing the right direction. I looked all over google and in the 1967 service manual to see what this notch looks like to compare but no luck.

If you did have the rocker shaft in reversed, wouldn't you still get some oil ? Does anyone have a close up of what this "notch" looks like

 

[A383Wing]

oil will not go up to cylinder heads unless the oil holes in the camshaft line up with pressure holes in block. You will need to turn engine over slowly while priming oil pump with rod & drill....and I mean slowly, because the holes are small and only line up once every revolution of the camshaft

a service manual would be your friend here...oil holes in rockers face down and toward the exhaust valve. Service manual shows this in great detail. Notch on shaft is at one end. When shafts are mounted correctly, notch will be at opposites ends of each other

 

[Banzaiii67]

Front


Rear


- - - Updated - - -

 

[Snowtrooper1966]

 

[62 Dart Convertible]

Post #2 describes it well. Oil isn't fed all the time to the rockers. With engine stationary whilst priming you would need to be very lucky to see oil at either rocker shaft. Like he said, have somebody turn engine s-l-o-w-l-y while priming and you should get oil up there at some point. Oil only feeds up there for a small number of degrees of rotation....

 

[okiemopar]

And if this doesn't get the oil there the #4 cam bearing is in wrong and not lining up with the oiling holes in the block.

 

[Garys1969RR]

Seems like at #1 TDC on firing stroke, one of the rocker shafts gets oil. As this is when the lubrication holes in the cam are lined up with the oil supply hole, and the passage that goes up to the cyl head.

 

[Banzaiii67]

Seems like at #1 TDC on firing stroke, one of the rocker shafts gets oil. As this is when the lubrication holes in the cam are lined up with the oil supply hole, and the passage that goes up to the cyl head.

Yeah, I'm going to do that first. Then I'll turn it over by hand slowly while priming it. Thanks everyone!

 

[A383Wing]

are you 100% sure the #4 cam journal was drilled for oiling the heads also??

 

[Banzaiii67]

are you 100% sure the #4 cam journal was drilled for oiling the heads also??

I can't be 110% sure, but the bottom end was rebuilt by a reputable machine shop here in Portland. The engine was running and driving in my '67, and I pulled the valve covers while running to check on a valve train noise seen here. There was oil pumping up to the heads at that time. http://www.forbbodiesonly.com/moparforum/showthread.php?68322-Valvetrain-noise-coming-from-rocker

Builder used these cam bearings..
http://www.race-mart.com/ACL_Bearings-AEB-5C876S-00.html

 

[Ron Ward]

I think Snowtrooper hit the nail on the head (pun intended.)

Check and make certain the oil passage holes in the rocker shafts are properly oriented.


Ron

 

[A383Wing]

I think Snowtrooper hit the nail on the head (pun intended.)

Check and make certain the oil passage holes in the rocker shafts are properly oriented.


Ron

that will not stop the oil from coming up to the head...if holes are not in correct location, it will just wear out the rocker arms & shafts

 

[Banzaiii67]

Everything is fine, got plenty of oil to the heads and fired it up tonight

 

[rumblefish360]

What was the issue? Rotating the engine?

 

[Banzaiii67]

What was the issue? Rotating the engine?

Yes. At tdc it was pumping up to the left bank (facing front), at about 1/4 turn it started pumping up to the right bank.