pre oil lifters?

Small Block Mopar Engine

  1. j.d.duggan

    j.d.duggan Well-Known Member

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    I,ve allways put my hyd. lifters in a oil bath for a day or two and let them soak,get the air out of them,on small block chevy's.is this what you guy's do on a mopar?I read something on here about not doing it,something to do with the stationary rockers?please help.thanks
     
  2. T56MaxTorq

    T56MaxTorq Well-Known Member

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    Just dunk them. Soaking them is unnecessary. You’ll bleed the air out during priming.
     
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    • j.d.duggan

      j.d.duggan Well-Known Member

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      on the priming,someone said I needed to loosen or pull the filter then spin the oil pump till oil cam out of filter hole,then replace filter and prime more till oil is coming out of the top of motor,turning 90* along the way.Is this correct?
       
    • 1994redram

      1994redram FABO Gold Member FABO Gold Member

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      I wouldn't loosen the filter up. That would make a mess quick. Just spin the pump and slowly turn the motor over a couple times. It's always worked out fine for me.
       
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      • 383Scampman

        383Scampman Well-Known Member

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        I don't think it matters too much if you soak the lifters or not but pre-oiling the engine is mandatory . Put assembly lube on the lobes and lifters . Before start-up , put a hex tool on the oil pump and turn pump clockwise if a s.b., counterclockwise if a b.b. Rotate engine by hand until you see oil on rockers . this may take some time because rockers get oil every other revolution . I suggest an oil pressure guage directly on the block so you can see the pressure directly . the more you rotate the motor and turn the prime tool the more likely the lifters will fill with oil . Good luck !
         
      • j.d.duggan

        j.d.duggan Well-Known Member

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        I was planning on building a tool to spin the pump.Is there someplace I can buy 5/16 allen stock in long lengths or does someone sell a tool for that?
         
      • 1994redram

        1994redram FABO Gold Member FABO Gold Member

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        • 67dartgtgo

          67dartgtgo FABO Gold Member FABO Gold Member

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          I cut the end off an old Allen wrench and welded it to a piece of round stock long enough to reach over the distributor hole. That’s one of my best tools.
           
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          • brian6pac

            brian6pac Well-Known Member

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            If you are a good welder fab guy, a guy I know welded a allen wrench on a rod and I don't know if he dunked it in cold water or what but it snapped off in the pump, shattered and he had to pull the pan & pump to get it out, not really worth it for $12.00.
             
          • j.d.duggan

            j.d.duggan Well-Known Member

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            that's what I did my hole life,owned my own shop for 30 yrs.problem is knowing what metal your dealing with.stupid people get lucky everyday and get away with welding stuff together and it works.I have enough knowledge not to try it.grainger shows they have the 5/16 stock in 3' sections for sale,I'll check it out today.how long is the tool you buy from summit or jegs?
             
          • 67dartgtgo

            67dartgtgo FABO Gold Member FABO Gold Member

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            Live and learn....I can’t possibly be the only stupid one here. Lol.
            My point is if you don’t want to drive 3 hours or wait a week for delivery, one can be made if it’s done well.
             
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            • j.d.duggan

              j.d.duggan Well-Known Member

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              did not mean to call anyone stupid,the correct word is ignorant.Just like me on these mopars.I have not messed with them enough to know the simplest things.please forgive,thanks:lol:
               
            • JDMopar

              JDMopar Well-Known Member

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              I just took an old pump drive and ground all of the teeth off of it so it would spin freely. I had a long flat screwdriver that was junk, so I sawed the handle off of it and put that in a drill to turn the oil pump drive that I made. Coutry fols got country ways! Que the Hank Jr. song......lol.
               
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              • AJ/FormS

                AJ/FormS 68 B'cuda fb, Form S clone ... 367/A833/3.55s FABO Gold Member

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                Do NOT fill the lifters with oil!!
                Most lifters have a plunger travel in the order of .200inch. And if you have non-adjustable arms, during the valve gear install,your pushrods are supposed to depress that plunger to around half of that. If this does not happen due to a hydraulic lock in the lifters; you may be driving your valves straight into the piston crowns.
                But even if you have enough PV clearance, the valves will not fully close and your compression could be as little as nothing. So during the initial start-up that extremely low-compression engine will crank and crank and crank, throwing all the cam break-in paste off. And if you're not figuring it out, you will tear your hair out. Then when it finally does start, with little or no break-in lube left on the lobes....... who knows what lobes will survive.
                Leave the lifters empty, but make sure they spin freely.
                Mopar LAs have to be primed with the cam in two specific orientations so that oil will go up to the top-end and fill the Rocker-shafts.One position for the passenger side and a different position for the driver's side. During this procedure, the lifters will get pretty much filled also.
                Break the cam/lifters in, then worry about clatter and lifter rotation.
                 
                Last edited: Feb 11, 2019
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                • 69_340_GTS

                  69_340_GTS Well-Known Member

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                  Never having primed a SBM, is there any reason you could not use one of these Allen sockets with a long 3/8" drive extension on it? Plug a 3/8" drive electric/air wrench into it and there's your priming tool. ?
                  husky-sockets-h3dhbs516-64_1000.jpg
                   
                  Last edited: Feb 11, 2019
                • brian6pac

                  brian6pac Well-Known Member

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                  You don't want it sticking in the pump and your ext comes off of it when you pull it out
                   
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                  • 1994redram

                    1994redram FABO Gold Member FABO Gold Member

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                    That socket would be a tight fit through the bushing for the oil pump drive.
                     
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                    • 69_340_GTS

                      69_340_GTS Well-Known Member

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                      I see. Do you know what size the bushing is?
                       
                    • Wyrmrider

                      Wyrmrider Well-Known Member

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                      if you do pre oil your hyd lifters they act like solids and can bend things
                      preoiling is ok if you slowly rotate the engine and stop every 90 degrees or so to let the springs bleed them down
                      go around at least twice to bleed them all
                      lots of good advice in this thread- sort out the good ones
                       
                    • j.d.duggan

                      j.d.duggan Well-Known Member

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                      thought about the allen socket,would'nt fit thru the bushing.went to grainger today and bought a 3' stick of 5/16 allen stock for $10.96,should be enough to make at least two tools.will check tomarrow to see how long it needs to be.
                       
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                      • nm9stheham

                        nm9stheham Well-Known Member

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                        Tool is easy.. get a 2'-3' long mild steel rod from the hardware store. 5/16" diameter. Hammer flats on one end in a hex shape... cut to desired length.... takes 2-3 minutes. No welding, sockets, etc. Not a perfect fit but quite adequate for turning at 500-600 RPM with a drill.
                         
                      • nm9stheham

                        nm9stheham Well-Known Member

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                        Take your lifters after soaking and see if they compress any. If they compress some, like 1/8", you should be OK. Just don't put them in an oil bath and pump all the air out, like in the old days and stock engines.

                        As for cam lube, I strongly encourage you to get some moly based cam lube to use on the lifters and lobes, not just the standard assembly lube.

                        Once lubed and assembled, but before the intake is bolted on, mark the pushrods with a marker. Rotate the engine over by hand a couple of times, and check all your marks on the pushrods to see that they have rotated at least a little bit.
                         
                      • RustyRatRod

                        RustyRatRod 30 Degrees Outta Whack FABO Gold Member

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                        Just be a man and run solid lifters. Problem solved.
                         
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                        • sireland67

                          sireland67 Well-Known Member

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                          I built my own, cut the gear off a stock shaft, welded a push rod to it.
                          The reason I did it, it was cheap and I had the parts, the second reason is I did not want to use a piece of hex stock and take a chance of destroying the distributor bushing in the block.

                          RD3KL9.jpg
                           
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                          • j par

                            j par Well-hung Member

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                            I bought that oiling Shaft Tool the first time I did this and it came in handy dozens of times. Even when I helped a customer break in his 403 Oldsmobile 6.6 for his Trans Am and use the same thing.
                            I usually have my wife run the drill with the shaft at a medium slow speed and nice and steady. She's done it with me so many times now that she calls out there it is! LOL when I turn the motor and she can feel it kind of speed up when the oiling holes line up and then I let it sit there as soon as she says that and sure enough is in the left or the right side shaft will start pouring oil out and I scream stope! Before it starts overflowing over the head. And then I turn it a little bit and have her continue and then as I slowly turn it the wine of the drill will pick up when it hits the other oiling hole and the other side shafts will start oiling. And then we're done. or I should say then we turn it to the top dead center on number one firing so we can set the distributor correct. I went out to the garage and took a picture of mine next to a measuring tape in case you try and make one it looks like they're 16in long. For the price and their importance I would just buy one..
                            IMG_20190211_174612.jpg
                            No offense but sometimes I feel my wife knows more than a lot...
                             
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