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    KLZE + turbo = smokey!

    Posting this for Damkid since he's at work right now trying to figure this issue out!

    KLZE engine, FMU, Grand National turbo @6psi.

    After turbo installed, blew lots of oil in boost. Added oil restrictor, conditions got better, but still smoking lots. Blown seals?

    Added catch can to bring oil away from the combustion chamber, conditions got better for a short while then got worse again.

    Has excessive crankcase pressure possibly, along with lots of oil blow by. Any suggestions or help will be awesome!

    Chris plans on doing a comp test when he gets home to check the ring conditions. Other than that I've suggested to look into the PCV system since the KLs suck lol.

    oh ya, currently he's used up over 50% of his engines oil capacity lol, so it's like an oil hose.
    -Jack

    ONTARIO MAZDA CLUB! Join! https://www.facebook.com/groups/500055016671733/

    91 626 LX - basically stock and pretty slow still
    http://www.clubprotege.com/forum/sho...my-GD-626-LX-)

    01 E53 3.0i - FOR SALE! pm if interested

    91 USDM Protege LX - SOLD! turbo/manifold up for sale!
    http://www.clubprotege.com/forum/showthread.php?t=46606

    #2
    Oil in the catch can: rings, pcv, valve stem seals.

    No/little oil in catch can: turbo seals.
    sigpic
    1992 Familia GT-X
    1988 323 GTX
    2011 F150 Lariat Ecoboost
    2014 Civic Touring

    Comment


      #3
      Ya that's what my thoughts were too...well all but the valve stems, but I guess we shouldn't leave those out of the mix either. I just figured since it wasn't blowing oil like this when it was n/a they should be ok...but that's what we're assuming with the rings too I guess lol.
      -Jack

      ONTARIO MAZDA CLUB! Join! https://www.facebook.com/groups/500055016671733/

      91 626 LX - basically stock and pretty slow still
      http://www.clubprotege.com/forum/sho...my-GD-626-LX-)

      01 E53 3.0i - FOR SALE! pm if interested

      91 USDM Protege LX - SOLD! turbo/manifold up for sale!
      http://www.clubprotege.com/forum/showthread.php?t=46606

      Comment


        #4
        No oil in the charge piping at all, so I figure my turbo is good but it smokes like bastard under boost

        So I installed a catch can that vents to the vacuum side of my turbo, then it smokes like a forest fire going down the road

        Pull the charge piping and it's fill of oil, that tells me my catch can is feeding the inlet of my turbo with oil

        So I cap off the vacuum line going to the turbo leaving the catch can open, so it essentially is venting the PCV to the atmoshpere, go for a drive, open the hood and it looks like some dumped a jug of oil in my engine bay

        That tells me I have massive amounts of oil coming through my PCV meaning massive amount of crank case pressure..... Makes me think bad rings/pistons

        Tonight I'm gunna try taking my PCV hose and run it to a jug, go for a drive and see how full the jug gets

        Either way I think I'm changing a motor this weekend

        1988 323 Station Wagon - KLG4 swapped
        1988 323 GT - B6T Powered
        2008 Ford Escape - Rollover Survivor

        1990 Festiva - First Ever Completed KLZE swap (SOLD)

        If no one from the future stops you from doing it, how bad of a decision can it really be?

        Comment


          #5
          Your dip stick should pop out before the pcv vents under boost. You have a weak pcv valve.
          sigpic
          1992 Familia GT-X
          1988 323 GTX
          2011 F150 Lariat Ecoboost
          2014 Civic Touring

          Comment


            #6
            PCV is brand new

            Before I installed the catch can, it wasn't venting just like you said, so basically it'd build pressure under boost then when I'm up to speed, let off the throttle to just maintain speed and that's when the smoke just bellows out and covers the road

            1988 323 Station Wagon - KLG4 swapped
            1988 323 GT - B6T Powered
            2008 Ford Escape - Rollover Survivor

            1990 Festiva - First Ever Completed KLZE swap (SOLD)

            If no one from the future stops you from doing it, how bad of a decision can it really be?

            Comment


              #7
              so far compression results are solid as per Chris. Ranging from 200-210psi in all 6 cylinders, but runs like poo lol...hopefully it's fowled plugs
              -Jack

              ONTARIO MAZDA CLUB! Join! https://www.facebook.com/groups/500055016671733/

              91 626 LX - basically stock and pretty slow still
              http://www.clubprotege.com/forum/sho...my-GD-626-LX-)

              01 E53 3.0i - FOR SALE! pm if interested

              91 USDM Protege LX - SOLD! turbo/manifold up for sale!
              http://www.clubprotege.com/forum/showthread.php?t=46606

              Comment


                #8
                Lol your quick jack haha

                As jack said, here's the compression test results

                Cyl 1 - 210
                Cyl 2 - 212
                Cyl 3 - 208
                Cyl 4 - 206
                Cyl 5 - 210
                Cyl 6 - 209

                After cleaning the plugs, it still sputters, it did run dry on oil so I could have possibly screwed up a lifter, if I screwed up a valve I would assume it would show in the compression test right?

                1988 323 Station Wagon - KLG4 swapped
                1988 323 GT - B6T Powered
                2008 Ford Escape - Rollover Survivor

                1990 Festiva - First Ever Completed KLZE swap (SOLD)

                If no one from the future stops you from doing it, how bad of a decision can it really be?

                Comment


                  #9
                  oh ya lol it would
                  -Jack

                  ONTARIO MAZDA CLUB! Join! https://www.facebook.com/groups/500055016671733/

                  91 626 LX - basically stock and pretty slow still
                  http://www.clubprotege.com/forum/sho...my-GD-626-LX-)

                  01 E53 3.0i - FOR SALE! pm if interested

                  91 USDM Protege LX - SOLD! turbo/manifold up for sale!
                  http://www.clubprotege.com/forum/showthread.php?t=46606

                  Comment


                    #10
                    so Chris has the car hooked up n/a right now. Aka turbo isn't connected to the TB, and the VAF and air filter are lol...runs a bit rough from the oiling issue...Chris is suspecting a failed lifter or two possibly. Sounds like it's not blowing oil when she's hooked up n/a though!

                    Would that cancel out the turbo seals being shot as it's still receiving/draining pressurized oil from the engine?
                    -Jack

                    ONTARIO MAZDA CLUB! Join! https://www.facebook.com/groups/500055016671733/

                    91 626 LX - basically stock and pretty slow still
                    http://www.clubprotege.com/forum/sho...my-GD-626-LX-)

                    01 E53 3.0i - FOR SALE! pm if interested

                    91 USDM Protege LX - SOLD! turbo/manifold up for sale!
                    http://www.clubprotege.com/forum/showthread.php?t=46606

                    Comment


                      #11
                      That would tell me it is the turbo. Since it isn't pressurized, no oil is going to blow through the seals. The oil feed is through a restrictor, that lowers both flow and pressure.

                      The top end may come back with fresh oil, but there was probably some damage done.

                      If the rings were bad enough that boost was blowing past them, it would happen NA too. Those are good compression numbers. Valve stem seals leak under vacuum. So there would be no difference there.

                      Does the pcv system suck through the intake, or through a breather? It could be sucking oil backwards through the system of it's up stream of the turbo, it could be pressurizing the crank case if it's downstream. Most likely the seals are just blowing oil directly into either the hot side, or cold side, or both compressors. You could pressurize the turbo without it spinning, and see if it leaks on either side.
                      Last edited by DuRWooD; 08-24-2012, 09:45 AM.
                      sigpic
                      1992 Familia GT-X
                      1988 323 GTX
                      2011 F150 Lariat Ecoboost
                      2014 Civic Touring

                      Comment


                        #12
                        Get rid of the PCV system entirely, open up the vents, and just vent everything. The motor will be much happier.

                        Comment


                          #13
                          I also suggested looking into the catch can line diameter. Could be restrictive. Either way Chris thinks it potentially could be the catch can setup. He's going to hook the PCV up to a jug and go for a rip to see if any build up occurs with the catch can disconnected. If so, then he'll know it's crankcase pressure. If not, onto other tests lol.

                          edit: concealer, how to do vent all the pcv system in the KL? Mine wouldn't run with it disconnected/vented lol
                          -Jack

                          ONTARIO MAZDA CLUB! Join! https://www.facebook.com/groups/500055016671733/

                          91 626 LX - basically stock and pretty slow still
                          http://www.clubprotege.com/forum/sho...my-GD-626-LX-)

                          01 E53 3.0i - FOR SALE! pm if interested

                          91 USDM Protege LX - SOLD! turbo/manifold up for sale!
                          http://www.clubprotege.com/forum/showthread.php?t=46606

                          Comment


                            #14
                            Originally posted by Mazda_Powered View Post
                            I also suggested looking into the catch can line diameter. Could be restrictive. Either way Chris thinks it potentially could be the catch can setup. He's going to hook the PCV up to a jug and go for a rip to see if any build up occurs with the catch can disconnected. If so, then he'll know it's crankcase pressure. If not, onto other tests lol.
                            Always go as big as you can for line size. You want flow, NOT velocity.

                            Comment


                              #15
                              found out he's running 5/8" line, should be ok there lol.
                              -Jack

                              ONTARIO MAZDA CLUB! Join! https://www.facebook.com/groups/500055016671733/

                              91 626 LX - basically stock and pretty slow still
                              http://www.clubprotege.com/forum/sho...my-GD-626-LX-)

                              01 E53 3.0i - FOR SALE! pm if interested

                              91 USDM Protege LX - SOLD! turbo/manifold up for sale!
                              http://www.clubprotege.com/forum/showthread.php?t=46606

                              Comment

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