"While you're in there" things to replace when changing the timing belt?

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  • tk-421
    Wrencher
    • Sep 2011
    • 291

    #1

    "While you're in there" things to replace when changing the timing belt?

    So I had the timing belt/water pump changed a little over a year ago. From my searching, it seems like the belt sound I'm hearing at cold start and for the first few minutes is the timing belt rubbing on the cover. I haven't verified this yet but I'm preparing to buy the Gates belt and tensioner to do this myself now that Kung Flu lets me work remote and not have to drive my car everyday.

    While I'm in there, what else should I replace and what would be easier to replace now that I'll have all of that off? Even if my guess about the noise is incorrect, this would be good to know for future reference as I searched a ton and couldn't find anything definitive. Last week I *finally* got a place with a garage so I'm now doing my own work without the apartment complex Nazis always coming after me.


    What was replaced (as per the invoice, no brands listed):
    - timing belt, tensioner, pin, and spring
    - rear timing cover gasket
    - crank front seal
    - cam seal
    - oil pump driveshaft seal
    - water pump
    - accessory belt kit
    - cam plug o-ring
    - USED distributor rotor

    What I plan to install:
    - gates belt and tensioner
    - timing belt tensioner pin and spring
    - timing cover seal
    - crank seal*
    - cam seal (2x)*
    - thermostat with matching fan switch (80 degree?)
    - thermostat gasket
    - accessory belts with adjustment nuts
    - distributor cap/rotor
    - spark plug wires (already put new NGKs in)

    * = I already have them on hand and will change them if needed
    Last edited by tk-421; 04-09-2020, 06:32 AM.
    1990 E30 325i sedan - Gletscherblau (280) over Indigo cloth (0271)
  • tomstin
    E30 Addict
    • Mar 2015
    • 542

    #2
    The list looks good. I passed on the crank seal as the torque on that is a beast. Was advised by several places to leave it alone unless its leaking.
    2004 525i Manual - 1985 325E Coupe Manual

    Comment

    • digger
      R3V Elite
      • Nov 2005
      • 5911

      #3
      Why change accessory belts, timing cover seal, cam and crank seals if it was done a year ago ?
      89 E30 325is Lachs Silber - currently M20B31, M20B33 in the works, stroked to the hilt...

      new build thread http://www.r3vlimited.com/board/showthread.php?t=317505

      Comment

      • tk-421
        Wrencher
        • Sep 2011
        • 291

        #4
        Originally posted by digger
        Why change accessory belts, timing cover seal, cam and crank seals if it was done a year ago ?
        Ah, I forgot to make note that I have extra cam/crank seals on hand and will change them if needed (I updated the post). Also, I just don't like reusing gaskets/seals/o-rings if they have to come off. Usually they're cheap enough where it's nice peace of mind to put a new one in every time.
        1990 E30 325i sedan - Gletscherblau (280) over Indigo cloth (0271)

        Comment

        • Vincenze
          E30 Modder
          • Apr 2019
          • 914

          #5
          Originally posted by tk-421

          Ah, I forgot to make note that I have extra cam/crank seals on hand and will change them if needed (I updated the post). Also, I just don't like reusing gaskets/seals/o-rings if they have to come off. Usually they're cheap enough where it's nice peace of mind to put a new one in every time.
          Do you have a special wrench that is used to hold the crankshaft while you unscrew the crankshaft bolt?

          Comment

          • E30SPDFRK
            Moderator
            • Jul 2007
            • 5687

            #6
            Radiator/thermostat hoses
            fan clutch
            Byron
            Leichtbau

            Comment

            • digger
              R3V Elite
              • Nov 2005
              • 5911

              #7
              Originally posted by tk-421

              Ah, I forgot to make note that I have extra cam/crank seals on hand and will change them if needed (I updated the post). Also, I just don't like reusing gaskets/seals/o-rings if they have to come off. Usually they're cheap enough where it's nice peace of mind to put a new one in every time.
              yeah you wouldnt touch those unless you absolutetly needed to. it's not 'reusing' the seals as they dont come off except the rubbery timing cover seal. same with the belts if they are good they are good
              89 E30 325is Lachs Silber - currently M20B31, M20B33 in the works, stroked to the hilt...

              new build thread http://www.r3vlimited.com/board/showthread.php?t=317505

              Comment

              • E30-325iS
                Advanced Member
                • Sep 2011
                • 191

                #8
                You'll probably need to replace the plastic cable holder on the timing cover and the one on the top radiator hose as they'll disintegrate when you try to remove them.
                Part numbers11141716133 , 11141716134 and 11531714433

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