Flywheel Pin

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • Knight Rider S4
    S2Forum Possessed
    • Mar 2005
    • 3541
    • Country: Scotland

    #1

    Flywheel Pin

    Just got off the phone to the guys that are making clutch and grinding the flywheel and they have broken the rear pin for the crank sensor by accident....Not a problem to fix ..but I need to give him the measurement of how far out the pin sits from the face for the sensor...Does anyone have this?


    Cheers


    Steve
    93 S2 Avant Parting
    91 URQ RR
    02 A4 tdi Avant
  • mcandmar
    S2Forum Zealot
    • Apr 2004
    • 5118
    • Country: Ireland

    #2
    11mm from memory, i asked the same question before on the forum..

    Found it ... http://www.s2forum.com/forum/showthr...light=flywheel
    91CQ20v - Gone to a new home
    93UR-S4 - The Magic Carpet
    94S2Bus - The Emerald Express

    Comment

    • terrybullwon
      S2Forum Zealot
      • Mar 2006
      • 8782
      • Country: England

      #3
      I snapped mine to, glad i was not the only 1 lol
      Chef

      Comment

      • Jamo
        Retired OG Mod
        • Mar 2004
        • 21750
        • Country: United Kingdom

        #4
        Have them weld it in unless it's going for balancing

        Comment

        • Knight Rider S4
          S2Forum Possessed
          • Mar 2005
          • 3541
          • Country: Scotland

          #5
          Brillant .....have just spoke to him again and they have just snapped both of the front ones to ....doing really well here ...what measurement are they from the Face and are they as important (balancing?)
          93 S2 Avant Parting
          91 URQ RR
          02 A4 tdi Avant

          Comment

          • terrybullwon
            S2Forum Zealot
            • Mar 2006
            • 8782
            • Country: England

            #6
            Originally posted by Jamo
            Have them weld it in unless it's going for balancing
            Extreme.

            I made my own pin a few tho larger than the oem one and pressed it in
            Chef

            Comment

            • mcandmar
              S2Forum Zealot
              • Apr 2004
              • 5118
              • Country: Ireland

              #7
              From memory the two on the front side are not used in an ABY/AAN application, only the rear pin and tooth ring are picked up by the sensors. Assuming your using a 7A/3B flywheel on an ABY?
              91CQ20v - Gone to a new home
              93UR-S4 - The Magic Carpet
              94S2Bus - The Emerald Express

              Comment

              • Knight Rider S4
                S2Forum Possessed
                • Mar 2005
                • 3541
                • Country: Scotland

                #8
                Its for my 3B coupe
                93 S2 Avant Parting
                91 URQ RR
                02 A4 tdi Avant

                Comment

                • Jamo
                  Retired OG Mod
                  • Mar 2004
                  • 21750
                  • Country: United Kingdom

                  #9
                  Originally posted by mcandmar
                  From memory the two on the front side are not used in an ABY/AAN application, only the rear pin and tooth ring are picked up by the sensors. Assuming your using a 7A/3B flywheel on an ABY?
                  Two on the front aren't used on the 3B either

                  Comment

                  • Knight Rider S4
                    S2Forum Possessed
                    • Mar 2005
                    • 3541
                    • Country: Scotland

                    #10
                    Cheers all sorted now..Hopefully have it back on Thursday
                    93 S2 Avant Parting
                    91 URQ RR
                    02 A4 tdi Avant

                    Comment

                    • 4WheelDrifter
                      S2Forum Zealot
                      • Oct 2004
                      • 5773
                      • Country: Devon

                      #11
                      The last time I measured my 3B timing pin it was 12mm long and 4mm diameter. Make sure you make it from a material that the timing sensor can pick up.

                      I'm sure some of you may remember Doug's S2 at Castle Combe last year, when Tom had trouble getting it to start. IIRC the local balancing man had broken the pin and replaced it with something non magnetic.
                      SS

                      Comment

                      • Knight Rider S4
                        S2Forum Possessed
                        • Mar 2005
                        • 3541
                        • Country: Scotland

                        #12
                        [QUOTE=4WheelDrifter;384254]The last time I measured my 3B timing pin it was 12mm long and 4mm diameter. Make sure you make it from a material that the timing sensor can pick up.

                        QUOTE]

                        Good point ..I will pass this on ...out of interest does the pin need to be in the exact same place as before with regard the teeth?

                        Cheers

                        Steve
                        93 S2 Avant Parting
                        91 URQ RR
                        02 A4 tdi Avant

                        Comment

                        • aelred
                          S2Forum Maniac
                          • Jan 2005
                          • 761
                          • Country: United Kingdom

                          #13
                          QUOTE]

                          Good point ..I will pass this on ...out of interest does the pin need to be in the exact same place as before with regard the teeth?

                          Cheers

                          Steve[/QUOTE]

                          Yessssssssssssssssss
                          Aelred

                          Comment

                          • Knight Rider S4
                            S2Forum Possessed
                            • Mar 2005
                            • 3541
                            • Country: Scotland

                            #14
                            The reason I ask this he mentioned they were struggling getting the pin out that broke (broke inside flywheel) so they might put the pin right beside it same distance from teeth so on .....the more I think about it ...If they do that it will affect the timing via crank sensor and hall sender?..True?...can the flywheel only go on one way with regard holes for the studs?


                            Cheers

                            Steve
                            93 S2 Avant Parting
                            91 URQ RR
                            02 A4 tdi Avant

                            Comment

                            • AndyP
                              S2Forum Zealot
                              • Feb 2004
                              • 6049
                              • Country: England

                              #15
                              Yes the flywheel only goes on one way, and yes the pin has to go in the same place. Try drilling from the other side and use a pin punch to knock it out, or try spark erosion.
                              sigpic
                              1991 Audi S2 3B - 2.5 Stroker engine
                              1997 A6 2.5TDi quattro avant - C4
                              1976 RD250E / 350LC cafe racer

                              Comment

                              Working...