Below Nav Bar Ad Module

Collapse

suction control valve question

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts
  • PMK
    Member
    • Jul 2012
    • 180
    • Sunbury

    suction control valve question

    Hi All
    Was just about to replace my SCV & had a good look before starting the job.
    The one I have bought is supposed to be the correct one for my car.
    Problem is It is a shorter unit than the original one already fitted to my car. The body on the new one I have is about 30mm long, where the old one fitted to my car is around 50mm long.
    When the new one arrived a week ago I rang the supplier to check & they confirmed it is the correct one. I didn't know then it was a different physical size. Unfortunately I can't call them now to check as it is the week end.
    Has anyone else come across this? Just want to make sure it's ok before I do the job.
    Cheers Paul
    SOLD - 2010 NT Pajero DiD Activ Mica Black - Safari Snorkel,T/Dog - 50mm Lovells rear, f/stone airbags, 50mm bilst/lov front. Ctek D250S. L/force 170's, Teko P3, C/Barrier, B/stone D697LT, GME TX4400, UltraGuage. ARB Sahara Bar. Bushskinz i/c, sump guards. Provent 200 & SPVi Mod. & d/son secondary fuel filter.

    Check out my Photo Bucket;
    http://s268.beta.photobucket.com/use...60064201786735
  • Stoneman
    Valued Member
    • Jul 2012
    • 2193
    • Melbourne

    #2
    Originally posted by PMK View Post
    Hi All
    Was just about to replace my SCV & had a good look before starting the job.
    The one I have bought is supposed to be the correct one for my car.
    Problem is It is a shorter unit than the original one already fitted to my car. The body on the new one I have is about 30mm long, where the old one fitted to my car is around 50mm long.
    When the new one arrived a week ago I rang the supplier to check & they confirmed it is the correct one. I didn't know then it was a different physical size. Unfortunately I can't call them now to check as it is the week end.
    Has anyone else come across this? Just want to make sure it's ok before I do the job.
    Cheers Paul
    Yep different fuel pumps, different SCV
    NS Pajero Exceed. With stuff

    Comment

    • PMK
      Member
      • Jul 2012
      • 180
      • Sunbury

      #3
      Originally posted by Stoneman View Post
      Yep different fuel pumps, different SCV
      Yep it's OK or Yep it's not?
      SOLD - 2010 NT Pajero DiD Activ Mica Black - Safari Snorkel,T/Dog - 50mm Lovells rear, f/stone airbags, 50mm bilst/lov front. Ctek D250S. L/force 170's, Teko P3, C/Barrier, B/stone D697LT, GME TX4400, UltraGuage. ARB Sahara Bar. Bushskinz i/c, sump guards. Provent 200 & SPVi Mod. & d/son secondary fuel filter.

      Check out my Photo Bucket;
      http://s268.beta.photobucket.com/use...60064201786735

      Comment

      • jinks_one
        Member
        • Feb 2012
        • 223
        • hoppers crossing

        #4
        I replaced my scv 18 month ago and it was the same size,and I just checked my spare ones
        and both were the same size.

        Did u get a Denso scv part no 1460A037

        Cheers Andrew

        Comment

        • PMK
          Member
          • Jul 2012
          • 180
          • Sunbury

          #5
          Originally posted by jinks_one View Post
          I replaced my scv 18 month ago and it was the same size,and I just checked my spare ones
          and both were the same size.

          Did u get a Denso scv part no 1460A037

          Cheers Andrew
          Hi. Thanks for the quick reply
          It is a 1460A037T. Other number on invoice is 2942000-0360.
          Out of interest are yours long or short?
          It's listed as the correct one for my model
          Might wait & call the supplier on Monday before I do the job
          Cheers. Paul
          Last edited by PMK; 02-05-15, 06:51 PM.
          SOLD - 2010 NT Pajero DiD Activ Mica Black - Safari Snorkel,T/Dog - 50mm Lovells rear, f/stone airbags, 50mm bilst/lov front. Ctek D250S. L/force 170's, Teko P3, C/Barrier, B/stone D697LT, GME TX4400, UltraGuage. ARB Sahara Bar. Bushskinz i/c, sump guards. Provent 200 & SPVi Mod. & d/son secondary fuel filter.

          Check out my Photo Bucket;
          http://s268.beta.photobucket.com/use...60064201786735

          Comment

          • Stoneman
            Valued Member
            • Jul 2012
            • 2193
            • Melbourne

            #6
            Originally posted by PMK View Post
            Hi. Thanks for the quick reply
            It is a 1460A037T. Other number on invoice is 2942000-0360.
            Out of interest are yours long or short?
            It's listed as the correct one for my model
            Might wait & call the supplier on Monday before I do the job
            Cheers. Paul
            Yes they are different and no they will not work as a replacement

            I have sourced them for my triton part number is 1460A056T, I'm sure yours will be the same
            Last edited by Stoneman; 02-05-15, 09:05 PM.
            NS Pajero Exceed. With stuff

            Comment

            • PMK
              Member
              • Jul 2012
              • 180
              • Sunbury

              #7
              Originally posted by Stoneman View Post
              Yes they are different and no they will not work as a replacement

              I have sourced them for my triton part number is 1460A056T, I'm sure yours will be the same

              I will post a phot
              Ok. Thanks
              You've saved me time and grief
              I will wait & call the supplier on Monday
              Cheers. Paul
              SOLD - 2010 NT Pajero DiD Activ Mica Black - Safari Snorkel,T/Dog - 50mm Lovells rear, f/stone airbags, 50mm bilst/lov front. Ctek D250S. L/force 170's, Teko P3, C/Barrier, B/stone D697LT, GME TX4400, UltraGuage. ARB Sahara Bar. Bushskinz i/c, sump guards. Provent 200 & SPVi Mod. & d/son secondary fuel filter.

              Check out my Photo Bucket;
              http://s268.beta.photobucket.com/use...60064201786735

              Comment

              • PMK
                Member
                • Jul 2012
                • 180
                • Sunbury

                #8
                Just a follow up on this topic.
                Turns out the SCV I was supplied is incorrect.
                Apparently if you have a 2010 NT Pajero made after May they used a different fuel pump - So that means a different SCV
                Not really the fault of the supplier but I was surprised I wasn't asked this question as there are two different valves avail for this car depending on the pump.
                I guess it's always a good idea to have the pump details when ordering a replacement SCV to avoid any errors.
                The supplier has offered to exchange the valve, so alls good.
                Thanks Stoneman for the info. The 1460A037T. (2942000-0360) is not the correct SCV for my car.
                Cheers Paul
                Last edited by PMK; 04-05-15, 10:11 AM.
                SOLD - 2010 NT Pajero DiD Activ Mica Black - Safari Snorkel,T/Dog - 50mm Lovells rear, f/stone airbags, 50mm bilst/lov front. Ctek D250S. L/force 170's, Teko P3, C/Barrier, B/stone D697LT, GME TX4400, UltraGuage. ARB Sahara Bar. Bushskinz i/c, sump guards. Provent 200 & SPVi Mod. & d/son secondary fuel filter.

                Check out my Photo Bucket;
                http://s268.beta.photobucket.com/use...60064201786735

                Comment

                • Stoneman
                  Valued Member
                  • Jul 2012
                  • 2193
                  • Melbourne

                  #9
                  Originally posted by PMK View Post
                  Just a follow up on this topic.
                  Turns out the SCV I was supplied is incorrect.
                  Apparently if you have a 2010 NT Pajero made after May they used a different fuel pump - So that means a different SCV
                  Not really the fault of the supplier but I was surprised I wasn't asked this question as there are two different valves avail for this car depending on the pump.
                  I guess it's always a good idea to have the pump details when ordering a replacement SCV to avoid any errors.
                  The supplier has offered to exchange the valve, so alls good.
                  Thanks Stoneman for the info. The 1460A037T. (2942000-0360) is not the correct SCV for my car.
                  Cheers Paul
                  Can you confirm the part number?

                  If you have trouble finding one I can help you out

                  NS Pajero Exceed. With stuff

                  Comment

                  • PMK
                    Member
                    • Jul 2012
                    • 180
                    • Sunbury

                    #10
                    Originally posted by Stoneman View Post
                    Can you confirm the part number?

                    If you have trouble finding one I can help you out

                    Don't know it but the conversation I had with them this morning confirmed the wrong one had been supplied
                    Once I gave him the pump number he knew
                    When I get it I will post the correct number
                    He did say it was a more expensive unit but would just swap it for me
                    Thanks for the offer. If I have problems still I'll be in touch
                    Cheers Paul
                    SOLD - 2010 NT Pajero DiD Activ Mica Black - Safari Snorkel,T/Dog - 50mm Lovells rear, f/stone airbags, 50mm bilst/lov front. Ctek D250S. L/force 170's, Teko P3, C/Barrier, B/stone D697LT, GME TX4400, UltraGuage. ARB Sahara Bar. Bushskinz i/c, sump guards. Provent 200 & SPVi Mod. & d/son secondary fuel filter.

                    Check out my Photo Bucket;
                    http://s268.beta.photobucket.com/use...60064201786735

                    Comment

                    • csimic
                      Valued Member
                      • Mar 2012
                      • 680
                      • Maitland

                      #11
                      Suction Control Valve

                      Hi

                      What does a suction control valve do?

                      Just interested in learning something.

                      Regards

                      Janelle
                      2010 Pajero VRX auto wagon, Cooper A/T 3's, 40mm lift, Lovells, Bilsteins, Polyair bags, Factory Nudge bar, driving lights, dual air cond, DVD player (rear) Hayman Reese Super Heavy Duty Tow bar, Bushskinz front/intercooler and engine sump, Polaris towing camera system, Clearview Mirrors, tows 2013 dual axle Jayco Outback Discovery Caravan. Redlec battery shutoff, Polaris HUD speedo. 400LMT Navman GPS. GME 88 channel UHF Radio. Bendix Stealth 4WD Disc Pads

                      Comment

                      • PMK
                        Member
                        • Jul 2012
                        • 180
                        • Sunbury

                        #12
                        Originally posted by csimic View Post
                        Hi

                        What does a suction control valve do?

                        Just interested in learning something.

                        Regards

                        Janelle
                        I know what a faulty one does. It causes surging
                        A good one - I think it controls the flow of fuel to the pump
                        Someone who knows more might comment
                        There is a lot of info on Google too
                        Cheers. Paul
                        SOLD - 2010 NT Pajero DiD Activ Mica Black - Safari Snorkel,T/Dog - 50mm Lovells rear, f/stone airbags, 50mm bilst/lov front. Ctek D250S. L/force 170's, Teko P3, C/Barrier, B/stone D697LT, GME TX4400, UltraGuage. ARB Sahara Bar. Bushskinz i/c, sump guards. Provent 200 & SPVi Mod. & d/son secondary fuel filter.

                        Check out my Photo Bucket;
                        http://s268.beta.photobucket.com/use...60064201786735

                        Comment

                        • PMK
                          Member
                          • Jul 2012
                          • 180
                          • Sunbury

                          #13
                          Originally posted by Stoneman View Post
                          Can you confirm the part number?

                          If you have trouble finding one I can help you out

                          Ok I have received the correct one now.

                          It is a Genuine Denso - Made in Japan
                          Part Number 294200-0660

                          Thanks, Paul
                          SOLD - 2010 NT Pajero DiD Activ Mica Black - Safari Snorkel,T/Dog - 50mm Lovells rear, f/stone airbags, 50mm bilst/lov front. Ctek D250S. L/force 170's, Teko P3, C/Barrier, B/stone D697LT, GME TX4400, UltraGuage. ARB Sahara Bar. Bushskinz i/c, sump guards. Provent 200 & SPVi Mod. & d/son secondary fuel filter.

                          Check out my Photo Bucket;
                          http://s268.beta.photobucket.com/use...60064201786735

                          Comment

                          • pasniny
                            Valued Member
                            • Jul 2009
                            • 1081
                            • ...

                            #14
                            Meters the amount of fuel between low pressure side of the injection pump to the high pressure side therefore controlling the pressure in the fuel rail

                            Comment

                            • Kingbrown
                              Valued Member
                              • Apr 2012
                              • 1773
                              • Port Augusta - SA

                              #15
                              Something for the tech heads out there:

                              I have been scratching my head trying to fathom exactly how the SCV changes the amount of fuel (and hence the pressure) that is delivered by the high pressure stage of the common rail injection pump to the common rail.

                              The pair of pistons in the hp stage are effectively a positive displacement pump which pushes an incompressible fluid into the common rail, so how does the volume/pressure change by throttling the feed flow to the hp suction via the SCV ?

                              Here's my thinking:

                              Looking at a cross section of the pump, there's a relief passage from the low pressure feed pump stage that returns excess fuel to the fuel tank.
                              Importantly, it looks as if that relief path also places feed pump pressure on the underside of the hp pistons.
                              In doing so, the stroke of the hp pistons is varied (during hp induction, feed pump pressure via the SCV is on top of the hp pistons and direct feed pump pressure is on the underside of the hp pistons).
                              There are also springs on the underside of the hp pistons which tend to return the pistons to the top of their stroke.

                              So, when the SCV is 'off' we get maximum flow from the lp feed pump to the top of the hp pistons (via the hp suction valves during induction) with less flow to the underside and therefore we get maximum piston stroke (hence maximum hp volume/pressure).

                              Conversely, when the SCV is fully energised 'on', we get minimum flow from the lp feed pump to the top of the hp pistons (via the hp suction valves during induction) with more flow to the underside and therefore the minimum piston stroke (hence minimum hp volume/pressure).

                              Does this seem reasonable ?

                              I'll try to post a diagram that shows the relavant parts.

                              Perhaps it should be called a stroke control valve
                              Last edited by Kingbrown; 17-06-17, 05:58 PM.
                              2012 PB Challenger LS Manual

                              Comment

                              Matched content

                              Collapse
                              Working...
                              X