10 lbs of oil pressure on engine break in..........

Magnum Engine Swaps

  1. brian6pac

    brian6pac Well-Known Member

    Messages:
    4,614
    Likes Received:
    3100
    Joined:
    Nov 15, 2016
    Location:
    N.E.Ohio
    Local Time:
    8:33 AM
    I have had many 340's and none have had plugs behind the cam plate. I don't know when they started using them, at one time I was going to put them in because the owner wanted them in but the plug was so long that it would cover up the oil galley hole going to the right lifter galley from the front main, so long as the plate is flat you don't need them.
     
  2. Tbone416

    Tbone416 Well-Known Member

    Messages:
    650
    Likes Received:
    88
    Joined:
    May 25, 2013
    Location:
    Stanfield N.C
    Local Time:
    8:33 AM
    1491330547413495014107.jpg 1491330605476-1551690642.jpg
    maybe I'm wrong
     
  3. brian6pac

    brian6pac Well-Known Member

    Messages:
    4,614
    Likes Received:
    3100
    Joined:
    Nov 15, 2016
    Location:
    N.E.Ohio
    Local Time:
    8:33 AM
    I know they started using them at some point but in the late 70's and early 80's I was buying every 340 I could find, picking out all the best parts for my motors and selling off the rest. I had 4 std bore blocks till recently down to 1 now but none of them had plugs in them. maybe they should have been in there but I never had a problem with oil pressure.
     
  4. xLURKxDOGx

    xLURKxDOGx "An angel fat, at satan's feast" FABO Gold Member

    Messages:
    3,712
    Likes Received:
    1190
    Joined:
    Dec 27, 2013
    Location:
    PHX
    Local Time:
    5:33 AM
    Well, i got this engine pulled and the pan off, it looked good. Pulled the pump and it looked sealed but a tiny spot by the rip. My next question is what other things should i look for just in case this isnt the problem? im going to prime it before it leaves the stand, what is a realistic oul pressure i should be shooting for? I put a new pump and seal in just in case there was an issue with the old one that was in there.

    Jake
     
  5. krazykuda

    krazykuda Well-Known Member FABO Gold Member How-To Section Editor

    Messages:
    52,513
    Likes Received:
    17373
    Joined:
    Aug 20, 2007
    Location:
    Orland Park, IL
    Local Time:
    7:33 AM
    I had an engine that had low oil pressure due to the two plugs not installed behind the camshaft thrust plate.. We proved it with a priming shaft and saw oil squirt 6 feet from behind the plate... It didn't squirt it all the time, one time it wouldn't then the next time it did...

    I always install them since and I get 45-45 psi oil pressure at idle...
     
    • Thanks! Thanks! x 1
    • Tbone416

      Tbone416 Well-Known Member

      Messages:
      650
      Likes Received:
      88
      Joined:
      May 25, 2013
      Location:
      Stanfield N.C
      Local Time:
      8:33 AM
      I have also ran into block's with oversize lifter bores. They usually have a small diamond on the lifter bore to indicate a oversize bore. But sometimes there just wore out. The cam bearing can lose a lot of oil by the by them too. Did you put any new ones in? Truth is you're inside of your engine is just a huge oil leak the tighter you can keep your tolerances the better you are but not too tight.
      P.S what does your saying under your Avatar mean?
       
      • Thanks! Thanks! x 1
      • bkd

        bkd Two Scoops To GO!!!

        Messages:
        676
        Likes Received:
        142
        Joined:
        Nov 10, 2009
        Location:
        Hamilton, OH
        Local Time:
        8:33 AM
        Maybe quoting a songs lyrics, this one...maybe

         
        • Agree Agree x 1
        • xLURKxDOGx

          xLURKxDOGx "An angel fat, at satan's feast" FABO Gold Member

          Messages:
          3,712
          Likes Received:
          1190
          Joined:
          Dec 27, 2013
          Location:
          PHX
          Local Time:
          5:33 AM
          Getting fat off the sins of the devil.

          Jake
           
        • xLURKxDOGx

          xLURKxDOGx "An angel fat, at satan's feast" FABO Gold Member

          Messages:
          3,712
          Likes Received:
          1190
          Joined:
          Dec 27, 2013
          Location:
          PHX
          Local Time:
          5:33 AM
          Well. Any idea what lack of oil to the divers side could mean?? Oil pressure is still low after new pump and gasket. The drivers side lifters are all noisey as can be but the passenger side is shooting oil out of the pushrods like it should be, just not the drivers. I checked for all the caps in the oil galleys but everything looked fine.

          Jake
           
        • jimjimjimmy

          jimjimjimmy lobsterman FABO Gold Member

          Messages:
          4,396
          Likes Received:
          1182
          Joined:
          Nov 2, 2010
          Location:
          p. e. i.
          Local Time:
          9:33 AM
        • xLURKxDOGx

          xLURKxDOGx "An angel fat, at satan's feast" FABO Gold Member

          Messages:
          3,712
          Likes Received:
          1190
          Joined:
          Dec 27, 2013
          Location:
          PHX
          Local Time:
          5:33 AM
          Just did, doesnt tell me about why one side would be oiling and not the other. But, i did stumble upon a link that showed the correct way to install lifters and i pulled to make sure they were pointed towards the intake and about 6 or 8 of them werent. Im really hoping this is the problem because my brain cant deal with this much longer :/ .

          Jake
           
        • brian6pac

          brian6pac Well-Known Member

          Messages:
          4,614
          Likes Received:
          3100
          Joined:
          Nov 15, 2016
          Location:
          N.E.Ohio
          Local Time:
          8:33 AM
          o.k. you put a HV HP oil pump in right, the machine shop installed new cam bearings, you checked the galley plug, (see pic),

          Lifter galley plug.jpg
           
        • toolmanmike

          toolmanmike FABO MODERATOR Staff Member FABO Gold Member

          Messages:
          48,604
          Likes Received:
          33263
          Joined:
          Jan 18, 2006
          Location:
          Iowa
          Local Time:
          7:33 AM
          ??? please explain. There is only 2 ways to install lifters and one way is upside down. Lifters spin (rotate in the bores). If they don't it will wipe out cam lobes.
           
          • Agree Agree x 2
          • xLURKxDOGx

            xLURKxDOGx "An angel fat, at satan's feast" FABO Gold Member

            Messages:
            3,712
            Likes Received:
            1190
            Joined:
            Dec 27, 2013
            Location:
            PHX
            Local Time:
            5:33 AM
            Well, since this is a roller cam the oil holes for the lifters can go face up or face down, i had quite a few of them the wrong direction so i figured that was a possibilty but i just got back inside from putting it all back together and it is the same, no oil to the drivers side and 8 pounds at idle. There obviously has to be something missing here, it looks as if i am one my way back to pulling this thing out once more.....

            Jake
            I looked but couldnt see anything, if this comes out tomorrow ill make sure to have a look. I called the machine shop and they said they dont pull plugs unless asked to. Ive read a few mixed reviews of the shop i took it too but i got say theyre better than the last one i dealt with.

            Jake
             
          • toolmanmike

            toolmanmike FABO MODERATOR Staff Member FABO Gold Member

            Messages:
            48,604
            Likes Received:
            33263
            Joined:
            Jan 18, 2006
            Location:
            Iowa
            Local Time:
            7:33 AM
            Ahh. The roller 318 is the engine you are talking about and not the 273. Very confusing.
             
          • d55dave

            d55dave Well-Known Member

            Messages:
            2,504
            Likes Received:
            986
            Joined:
            May 20, 2010
            Location:
            Kelowna, British Columbia
            Local Time:
            7:33 AM
            Chrysler never used an oil pump gasket. Aftermarket kits have one. It is not needed, there are two machined surfaces that mate and seal together. If a gasket was installed it could very well have blown out and caused your problems....
             
          • brian6pac

            brian6pac Well-Known Member

            Messages:
            4,614
            Likes Received:
            3100
            Joined:
            Nov 15, 2016
            Location:
            N.E.Ohio
            Local Time:
            8:33 AM
            I take it you didn't prime the pump when the motor was out ?
            You should get a primer rod 5/16 hex is about a foot long and run the pump with a drill and you can see what the pressure is, HV HP pump should be 70 psi even with a drill.
             
          • brian6pac

            brian6pac Well-Known Member

            Messages:
            4,614
            Likes Received:
            3100
            Joined:
            Nov 15, 2016
            Location:
            N.E.Ohio
            Local Time:
            8:33 AM

            The only job the gasket has between the pump and main cap is to blow out!
            Never use one.
             
            • Agree Agree x 1
            • xLURKxDOGx

              xLURKxDOGx "An angel fat, at satan's feast" FABO Gold Member

              Messages:
              3,712
              Likes Received:
              1190
              Joined:
              Dec 27, 2013
              Location:
              PHX
              Local Time:
              5:33 AM
              I used a gasket on the last 3 with problems. This could be the exception. I did use a ripped one that i though caused the problem originally but since i put a new pump and unripped gasket im guessing that isnt the problem.

              Jake
              I didnt get to because i ran into an issue when installing the bushing, it was perfect fit around th intermediate shaft but when i install it i didnt but i didnt realize that until halfway down and then i couldnt get back out so i gambled on that being the problem since it was the only obvious fault i could think of. Now, im thinking how can i get the shaft out while its in the car. I tried everything and to try to pry it out of there.

              Jake
               
            • xLURKxDOGx

              xLURKxDOGx "An angel fat, at satan's feast" FABO Gold Member

              Messages:
              3,712
              Likes Received:
              1190
              Joined:
              Dec 27, 2013
              Location:
              PHX
              Local Time:
              5:33 AM
            • 4spdragtop

              4spdragtop FABO Gold Member FABO Gold Member

              Messages:
              28,921
              Likes Received:
              8860
              Joined:
              Aug 28, 2009
              Location:
              Wasting time here
              Local Time:
              7:33 AM
              Hang in there Jake. I camt remember if we used a gasket on dads oil pump or not? No issues with mine 45ish at idle.
              Im thinking the gasket may be your problem. That bushing is an issue that I would think should be addressed at some point.
              Good luck.
               
            • d55dave

              d55dave Well-Known Member

              Messages:
              2,504
              Likes Received:
              986
              Joined:
              May 20, 2010
              Location:
              Kelowna, British Columbia
              Local Time:
              7:33 AM
              Take the gasket out. Put it together with no gasket or sealant. Make sure the mating surfaces are spotless.
               
            • toolmanmike

              toolmanmike FABO MODERATOR Staff Member FABO Gold Member

              Messages:
              48,604
              Likes Received:
              33263
              Joined:
              Jan 18, 2006
              Location:
              Iowa
              Local Time:
              7:33 AM
              [QUOTE="xLURKxDOGx,
              Now, im thinking how can i get the shaft out while its in the car. I tried everything and to try to pry it out of there.

              Jake[/QUOTE]
              The shaft? use a screwdriver in the distributor slot and twist it out. It will walk itself out of the cam gear.
               
              • Agree Agree x 2
              • xLURKxDOGx

                xLURKxDOGx "An angel fat, at satan's feast" FABO Gold Member

                Messages:
                3,712
                Likes Received:
                1190
                Joined:
                Dec 27, 2013
                Location:
                PHX
                Local Time:
                5:33 AM
                The shaft? use a screwdriver in the distributor slot and twist it out. It will walk itself out of the cam gear.[/QUOTE]
                Dude, this thing won't fucking come up for nothing! I've been at it with a screwdriver for 30 minutes and it won't come up even a 16th.

                Jake
                 
              • toolmanmike

                toolmanmike FABO MODERATOR Staff Member FABO Gold Member

                Messages:
                48,604
                Likes Received:
                33263
                Joined:
                Jan 18, 2006
                Location:
                Iowa
                Local Time:
                7:33 AM
                Dude, this thing won't fucking come up for nothing! I've been at it with a screwdriver for 30 minutes and it won't come up even a 16th.

                Jake[/QUOTE]
                twist the screwdriver the other way?
                 
              1. This site uses cookies to help personalize content, tailor your experience and to keep you logged in if you register.
                By continuing to use this site, you are consenting to our use of cookies.