No oil to rockers.

Slant 6 Engines

  1. 1963dartgt

    1963dartgt FABO Gold Member FABO Gold Member

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    I have no oil to the rocker arms on my 63 dart.The car runs great original motor it doesn't burn oil its doesn't smoke.Oil pressure is 50 psi on start up driving warm it sits at about 30psi and idles around 20psi. My problem is the car was neglected in the way of oil changes for the last 10 or so years is there anyway to clean it out. If pulled the rocker shaft soaked them in some hot purple power and cleaned them out with some berrymans carb cleaner and a paper clip but still no oil to them. Any ideas would help thanks.
     
  2. RustyRatRod

    RustyRatRod Weenie idiot loser. FABO Gold Member

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    Sounds like maybe the oil passage in the head is stopped up. You can remove the rocker train again and run some wire down the oil feed hole in the head and see if you can unstop it. Or, you can even try applying air pressure to the oil drain back passage and blowing it out.
     
  3. 383Scampman

    383Scampman Well-Known Member

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    x2 Rustyratrod. Also, you may have installed the rocker shaft upside down. This will burn up a set of rockers in no time. The shaft really needs a through cleaning by removing the end caps (replacements are cheap) and scrubbing shaft(s) with a bore brush. As Rusty said the oil feed hole in block may be plugged. Get some stiff wire and a lot of Brakleen and keep at it. Good luck
     
  4. Coronet 500

    Coronet 500 Well-Known Member

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    I have drained the oil, added a gallon of WD 40, remove distributor and oil pump gear drive, electric dill and priming tool while turning engine by hand to line up cam journal holes to head oiling holes.

    A set of steel valve covers with the tops cut of helps to keep the mess under control as you'll need to run it for longer than just an oil prime.

    I am describing for a small V8 just noticed slant, I'm sure the same can be done for this engine.
     
  5. 1963dartgt

    1963dartgt FABO Gold Member FABO Gold Member

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    I've cleaned the rocker shaft and got new plugs for the ends from Napa. It's installed with the flat part on top towards the front of the engine. I'll jump on it tomorrow berrymans is on sale and I've had that stuff melt a latex glove before so I'll give it a shot. Thanks everyone.
     
  6. nm9stheham

    nm9stheham Well-Known Member

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    Oil flow in a /6 rocker system is just dribbles off the rockers, not a flow. It can take a minute or more of idling to see this coming out, especially up front. FYI, the oil feeds up through the very back rocker stand. Make sure the right rocker bolt is inserted in that hole; it is the long bolt. The oil has to flow around that bolt and up into the enlarged hole in the back mounting hole in the shaft that needs to face down on that rocker stand. Your shaft orientation described above is right.

    Clearing a blockage in the oil feed hole could be challenging; it goes around one of the head bolts and up from the rear cam bearing. And the blockage could even be in the rear cam journal; there is an angled hole through the rear cam journal that allows oil flow about 5% of the time in pulses. So then engine has to be rotated by hand to find that spot that lines up the cam flow-through hole to clear it through. If blocked, I'd be trying some solvent down in there, followed by light oil after the solvent flows through, to water down the solvent in the oil system. Blowing through won't clear the passage through the cam journal unless it is lined up, and then the crud might go down into the rear main oil feed passage and block that up.

    Unfortunately, you can't easily prime the oil system on a /6; the pump drives directly off the cam, not off an intermediate shaft like in a small block. Some guys have used a pressurized oil chamber feeding into the pressure relief port on the pump, but it takes some work. And to get it to the head, the cam has to be lined up just right.

    If you want to try this operating to see if oil is coming up, then remove the back rocker bolt, turn the engine over by hand to see if the shaft flexes too much and if not, then fire it up . If the shaft flexes, I'd find a way to hold it down and watch down that hole.
     
    Last edited: May 21, 2016
  7. Killer6

    Killer6 Well-Known Member

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    The passage between the rocker shaft & headbolt is most
    likely to carbon up,so a little hanger/berryman action'll
    probably fix you up. Pull the plugs and disconnect your
    dizzy, leave the shaft off and crank, oil should ooze up
    out of the rocker shaft pedestal like uncle Jed's back yard.
     
  8. twodoorsedan

    twodoorsedan Member

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    I just had the same problem whith mine. It turned out to be the pin( the one thats directs the head) was out in the wrong hole,,,IT was placed in the oilchanel!!
    Hope you'll find out what's buggin yours.
     
  9. twodoorsedan

    twodoorsedan Member

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    I just vad the same experimentera whith mine... The Pin in the oil-chanel...
    So much for having the engine rebuilt!!
     
  10. pishta

    pishta I know I'm right....

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    Get it started then add 1/2 bottle of seafoam to the oil. Pour other half into tank. You could also try a can of Engine flush before you change oit, follow directions. I think you only idle the car for 10 minutes with it in then drain it with the old oil. Some nasty stuff comes out with that helper, like your motor coughed up a few lung biscuits!
     
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