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roller lifters with 2.8

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  • Yesterday I went to the race track for a free practice.
    This is what happened:









    So, nothing very extraordinary, just a little oil pressure issue.
    7000 rpm, 4th gear, some 100 mph and full stop.

    Comment


    • Oh no!

      Low oil pressure?
      Links:
      WOT-Tech.com
      FaceBook
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      • Originally posted by ForcedFirebird View Post
        Oh no!

        Low oil pressure?
        No oil pressure at all.
        There was 11 litres (some 3 gal)of oil in the engine, but it was in the wrong place, it
        was in the oil pan (in the engine) , not in the dry sump tank (it was empty).
        The dry sump oil pump did not get the oil from the engine, because the pre filters were blocked.
        RTV silicon mostly.
        My mistake.
        I should have checked the filters.
        I pulled the intake too many times, bits and pieces of RTV went to the engine every time,
        although I tried to be careful not to drop them inside.

        There is also bad design in the filters, they are in a kind of "tube", once the carbage gets in the
        filter area, it do not come out very easy.
        The filter area has to be modified.

        And IF I continue racing in the future, one thing is the most important.
        BIGGER OIL PRESSURE LIGHT!



        Last edited by veekuusi; 08-09-2013, 11:56 PM.

        Comment


        • Damn, that was some bad news! I had a great time watching the videos of this car racing. I was looking forward to new videos.
          95 Beretta 3100 with 3400 intakes and TCE TB
          High flow cat and a Magnaflow muffler
          Grand Prix trans with 3.33FDR

          Comment


          • Originally posted by Purple pit View Post
            Damn, that was some bad news! I had a great time watching the videos of this car racing. I was looking forward to new videos.


            -60v6's 2nd Jon M.
            91 Black Lumina Z34-5 speed
            92 Black Lumina Z34 5 speed (getting there, slowly... follow the progress here)
            94 Red Ford Ranger 2WD-5 speed
            Originally posted by Jay Leno
            Tires are cheap clutches...

            Comment


            • Bummer, hope the cam is OK. You may take advantage to go with an internal balanced crank, that may help you a little. Just amazing how little things just sneak up on you and make a mess. Hope you can get it back up and running again soon. Larry

              Comment


              • Here we go again.
                Just got the crank back from the machine shop.
                Main journals are now .010" and connecting rod bearings stayed standard size.
                I found both the mains and connecting rod bearings in the nearby speed shop.

                The connecting rod big ends were also checked for roundness.

                The block still needs main line honed,because of the heat .
                There was colour change in some of the main caps (blue), that is an indication of material extension.

                No other damage was found than that.
                Camshaft , heads , lifters and other, no damage.








                Edit:
                Just found a new issue.
                #2 main cap has 1 mm side play to the block.
                That is not good news.
                I think I need a new block.



                Last edited by veekuusi; 08-17-2013, 12:20 AM.

                Comment


                • Originally posted by veekuusi View Post
                  No other damage was found than that.
                  Camshaft , heads , lifters and other, no damage.
                  Well that's a lot better than I expected. I thought your rods would have taken a good beating at 7k and no oil. That's good news in my book for that kind of problem
                  -60v6's 2nd Jon M.
                  91 Black Lumina Z34-5 speed
                  92 Black Lumina Z34 5 speed (getting there, slowly... follow the progress here)
                  94 Red Ford Ranger 2WD-5 speed
                  Originally posted by Jay Leno
                  Tires are cheap clutches...

                  Comment


                  • Originally posted by veekuusi View Post
                    Edit:
                    Just found a new issue.
                    #2 main cap has 1 mm side play to the block.
                    That is not good news.
                    I think I need a new block.



                    Are you sure it isn't the cap itself that's damaged?

                    It sucks that this happened but on the bright side at least you know exactly what the problem was so you know what to avoid the next time around.
                    sigpic
                    ----------
                    BUILT Turbo 3400/4t65e-HD powered Grand AM in the making.

                    Comment


                    • I really canno't see how this could happen. If you bolt up that main with a bearing in it does the crank turn OK? This problem does not make any sence to me at all, there is nothing to break or wear that would cause this. I am thinking it must have always been this way. If you need it fixed, I would just build up the side of the cap, mill it down a little and then have it line bored and be happy. Larry

                      Comment


                      • Originally posted by trotterlg View Post
                        I really canno't see how this could happen. If you bolt up that main with a bearing in it does the crank turn OK? This problem does not make any sence to me at all, there is nothing to break or wear that would cause this. I am thinking it must have always been this way. If you need it fixed, I would just build up the side of the cap, mill it down a little and then have it line bored and be happy. Larry
                        The crank does not turn when the main caps are bolted.
                        The issue is with the caps not with the block.
                        But there is no possibility to get only new caps to the engine.
                        I have to buy a new engine (3.1 V6) , more specifically I have to buy a complete car, because no bare engines are
                        available here.
                        In a matter of fact, next week a get a 1996 Chevrolet Lumina to my property for some $ 400 .
                        I take the engine out of it and leave the rest for junk yard.

                        There are also some scratches in the block.
                        That is why a new block is needed.



                        Comment


                        • I started to make the new crossram intake.
                          Tube ID 42 mm (1.65").
                          Runner lenght from valve to the plenum 400 mm (15.7").









                          Comment


                          • Ouch, that is nasty! So are you going to put the 2.8 crank in the 3.1?
                            95 Beretta 3100 with 3400 intakes and TCE TB
                            High flow cat and a Magnaflow muffler
                            Grand Prix trans with 3.33FDR

                            Comment


                            • Originally posted by Purple pit View Post
                              Ouch, that is nasty! So are you going to put the 2.8 crank in the 3.1?
                              Yeah, thats right.

                              Comment


                              • Did you account for gasket tolerances when making that new intake?
                                Lifting my front wheels, one jack at a time.

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