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    Timing Belt Age

    I was thinking to change my 4.5yo tb before heading to the Vintage, even though I've only put 32k on it. I opened the new sealed Conti Kit and the new belt is date stamped July 2015. Hardly makes sense to make an age based swap.

    My 2c
    Seat Shocks....I have passed the baton to John Christy from Ninestitch. Email John or Garrett at ninestitch1@gmail.com

    https://www.r3vlimited.com/board/sho...86#post4944786
    Alice the Time Capsule
    http://www.r3vlimited.com/board/showthread.php?t=360504
    87 Zinno Cabrio barn find 98k and still smells like a barn. Build thread http://www.r3vlimited.com/board/show...20#post3455220

    #2
    Would be interesting to know what's the "shelf life" of a belt.
    Definitely is not receiving any stress if it's not installed.
    "If everything seems under control, you're just not going fast enough"
    -Mario Andretti.

    ___________________
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    2005 X3 3.0i ZPP, Htd seats, Htd strng, Black Sapphire on Terracotta.
    2002 ///M3 Coupe, Steel Gray Metallic on black leather, HK, three pedals.
    1991 E30 325ic, AW, Black Leather, Black top, Three Pedals.

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      #3
      Agreed
      Seat Shocks....I have passed the baton to John Christy from Ninestitch. Email John or Garrett at ninestitch1@gmail.com

      https://www.r3vlimited.com/board/sho...86#post4944786
      Alice the Time Capsule
      http://www.r3vlimited.com/board/showthread.php?t=360504
      87 Zinno Cabrio barn find 98k and still smells like a barn. Build thread http://www.r3vlimited.com/board/show...20#post3455220

      Comment


        #4
        Its kind of like tires in the sense that the rubber degrades over time. How long it takes to become prone to failure is the real question. Maybe just soak it in 303 since it works so good on the dashes?




















        Jkjkjkjkjk
        Swanny!
        SUCKERS.

        Comment


          #5
          Originally posted by Swanny View Post
          Its kind of like tires in the sense that the rubber degrades over time. How long it takes to become prone to failure is the real question. Maybe just soak it in 303 since it works so good on the dashes?

          I'm sure someone will say they got 10 yrs from a belt by doing this. Of course you have to remove it to treat it but hey...a penny saved.

















          Jkjkjkjkjk
          Seat Shocks....I have passed the baton to John Christy from Ninestitch. Email John or Garrett at ninestitch1@gmail.com

          https://www.r3vlimited.com/board/sho...86#post4944786
          Alice the Time Capsule
          http://www.r3vlimited.com/board/showthread.php?t=360504
          87 Zinno Cabrio barn find 98k and still smells like a barn. Build thread http://www.r3vlimited.com/board/show...20#post3455220

          Comment


            #6
            Mine was installed 4.5 years ago and has only 4k miles of use...everyone says change.

            Comment


              #7
              I put 7,200 miles on Klaus' last belt in just over 7 years, and it came out looking and feeling brand new. It's in such great shape I have it for sale.
              Originally posted by kronus
              would be in depending on tip slant and tube size

              Comment


                #8
                We stripped the teeth off a timing belt within the mileage requirements but outside the freshness date. Broke the head in the process. I would highly suggest changing the belt, way cheaper.....

                Comment


                  #9
                  rubber degrades over time.
                  ...at varying speeds depending on the conditions it's subjected to...

                  The belt that's sitting in a box in a climate- controlled environment's doing
                  a lot better than one on a car sitting out in the weather, getting run once or
                  twice a week. In the rust that forms on the surfaces of the pulleys because it's raining.

                  I just realized, the belt on the race car is 5 years old. I should change it some day...

                  heh

                  it's all about your comfort level....

                  t
                  now, sometimes I just mess with people. It's more entertaining that way. george graves

                  Comment


                    #10
                    Considering that there still e30s on the road running the original timing belt, I wouldn't worry a bit. I mean, yeah, those cars are ticking time bombs, but anything under 75k I wouldn't even consider an issue.

                    Comment


                      #11
                      I've now got this...a little too much heat nextnto #5 plus wire so may leave it home anyway

                      Seat Shocks....I have passed the baton to John Christy from Ninestitch. Email John or Garrett at ninestitch1@gmail.com

                      https://www.r3vlimited.com/board/sho...86#post4944786
                      Alice the Time Capsule
                      http://www.r3vlimited.com/board/showthread.php?t=360504
                      87 Zinno Cabrio barn find 98k and still smells like a barn. Build thread http://www.r3vlimited.com/board/show...20#post3455220

                      Comment


                        #12
                        My car was in a/c storage until December and now in a regular Florida garage with 4.5 years on the TB. Still only 4k miles. I know there is a risk, but if I were to wait a few months (driving only a few hundred miles) I presume the risk is low. Also, does spirited driving really make the risk worse?

                        Comment


                          #13
                          Originally posted by mjposner View Post
                          My car was in a/c storage until December and now in a regular Florida garage with 4.5 years on the TB. Still only 4k miles. I know there is a risk, but if I were to wait a few months (driving only a few hundred miles) I presume the risk is low. Also, does spirited driving really make the risk worse?
                          As long as it hasn't just sat for 4.5 years I wouldn't lose too much sleep over but I wouldn't get complacent about it either. I'd also say that if a belt gets weak a good punch on the gas pedal,is more likely to push it beyond its limit than driving to church on Sunday
                          Seat Shocks....I have passed the baton to John Christy from Ninestitch. Email John or Garrett at ninestitch1@gmail.com

                          https://www.r3vlimited.com/board/sho...86#post4944786
                          Alice the Time Capsule
                          http://www.r3vlimited.com/board/showthread.php?t=360504
                          87 Zinno Cabrio barn find 98k and still smells like a barn. Build thread http://www.r3vlimited.com/board/show...20#post3455220

                          Comment


                            #14
                            Originally posted by ahlem View Post
                            We stripped the teeth off a timing belt within the mileage requirements but outside the freshness date. Broke the head in the process. I would highly suggest changing the belt, way cheaper.....
                            They always do that when they fail. I have seen too many failed belts over the years of working on these cars. Worst part is, people would come in and have suspension work etc and they would have the belt snap not long after. I always suggest that if you don't know your belts age, just change it now while you can. Always crack up when they reply "but it runs fine, and the belt looks ok." All the failures looked fine too :/

                            Originally posted by TobyB View Post
                            ...at varying speeds depending on the conditions it's subjected to...

                            The belt that's sitting in a box in a climate- controlled environment's doing
                            a lot better than one on a car sitting out in the weather, getting run once or
                            twice a week. In the rust that forms on the surfaces of the pulleys because it's raining.

                            I just realized, the belt on the race car is 5 years old. I should change it some day...

                            heh

                            it's all about your comfort level....

                            t
                            This. Takes a few hours to avoid a whole lot of hours (and $$).
                            john@m20guru.com
                            Links:
                            Transaction feedback: Here, here and here. Thanks :D

                            Comment


                              #15
                              7 years is max life for any TB out there.
                              BMW recommends 4 years max,Bulletin Number 11 18 85 (1097).

                              After that.....you can join AndrewBird and start thinking that your car is a time bomb.

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