M50 Upper tensioner

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  • catch22
    Noobie
    • May 2007
    • 36
    #1

    M50 Upper tensioner

    Hey there.

    Does anyone post a pic of how the top belt tensioner goes on in an M50? I have a 95 e34 that i recieved with all the accessories taken off and i just cant seem to figure out how the top tensioner even mounts. Im starting to think I'm missing some bracket somewhere..

    Thanks in advance!
    Tags: None
    • catch22
      Noobie
      • May 2007
      • 36
      #2
      a little Paint diagram perhaps?

        Comment

        • FredK
          R3V OG
          • Oct 2003
          • 14745
          #3
          This is SoLive's diagram

            Comment

            • catch22
              Noobie
              • May 2007
              • 36
              #4
              hehe yes all the pictures that i have found so far have either the radiator hose or alternator cooling ducting in the way.. I can see the pulley.. but i just cant figure out how it mounts in relation to the alternator etc. I simply dont have enough holes.

                Comment

                • FredK
                  R3V OG
                  • Oct 2003
                  • 14745
                  #5
                  Are you talking about the dummy tensioner that is to the left of the alternator?

                    Comment

                    • catch22
                      Noobie
                      • May 2007
                      • 36
                      #6
                      This is the part im trying to find a place for:

                      http://www.realoem.com/bmw/showparts...99&hg=11&fg=18

                      The engine already has that pulley in the middle, is that the only tensioner there should be?

                        Comment

                        • PiercedE30
                          R3V Elite
                          • Apr 2005
                          • 4220
                          #7
                          That idler pulley should just bolt in to the oil filter housing.
                          My 2.9L Build!

                          Originally posted by Ernest Hemingway
                          There are only three sports: bullfighting, motor racing, and mountaineering; all the rest are merely games.

                            Comment

                            • Mr.SWISS
                              E30 Fanatic
                              • Nov 2005
                              • 1251
                              #8
                              There are 20 parts and 2 pulleys in that pic Einstein.
                              Originally posted by 325Projectz
                              don't listen to the diagram... listen to mr. swiss.
                              :nice:

                                Comment

                                • catch22
                                  Noobie
                                  • May 2007
                                  • 36
                                  #9
                                  Originally posted by Mr.SWISS
                                  There are 20 parts and 2 pulleys in that pic Einstein.

                                  Heh. I bought the engine as a complete but parted package from the junkyard.. and one of the items is the assembled #2,4,8 device. A similar tensioner is on the other side of the engine acting as the tensioner for the A/C compressor. Going by the RealOEM diagram, this one seems like it is the tensioner for the alternator belt.. i just cant really place it anywhere. It is possible that they just gave me it but it doesnt really go anywhere.. that's why i need a clear pic or diagram to figure out what im doing with it..

                                  tom
                                  Last edited by catch22; 07-02-2007, 03:14 PM.

                                    Comment

                                    • catch22
                                      Noobie
                                      • May 2007
                                      • 36
                                      #10
                                      The one that is already on the engine looks like this:

                                      http://www.realoem.com/bmw/showparts...99&hg=11&fg=18

                                      Can i conclude that the other one is just an extra piece that doesnt co anywhere?

                                        Comment

                                        • surebimmer
                                          E30 Modder
                                          • Jan 2004
                                          • 978
                                          #11
                                          The tensioner setup in the 2nd picture is a spring type, the first one is a hydraulic tensioner. Only one is needed.

                                            Comment

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