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Crankshaft pulley bolt comes off

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    #1

    Crankshaft pulley bolt comes off

    Just like the title says, my crankshaft pulley keeps coming off. Well it starts with the bolt, it unscrews itself then crankshaft pulley then belts...

    What is going on? How do I fix it?

    It did twice right now earlier, once the bolt screwed off, and them powersteering is lost and obviously alternator not charging...second time, the whole thing came off...
    Back to back this happened, I screwed it on the first time it came off in the middle of the street with my tools, second time I didn't even bothered..


    Originally posted by deevergote
    .......If they seem smart, and just trying to learn, I'll offer as much help as possible. If they seem stupid and lazy, I'll do my best to piss them off so they leave and never come back... while still answering the question.
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    #2
    Originally posted by turboAccordHSF View Post
    Just like the title says, my crankshaft pulley keeps coming off. Well it starts with the bolt, it unscrews itself then crankshaft pulley then belts...

    What is going on? How do I fix it?

    It did twice right now earlier, once the bolt screwed off, and them powersteering is lost and obviously alternator not charging...second time, the whole thing came off...
    Back to back this happened, I screwed it on the first time it came off in the middle of the street with my tools, second time I didn't even bothered..
    Are you torquing it to spec? Did you clean the threads in the crank? Did you dip the bolt in oil before torquing?

    These are all things you should do to ensure the bolt is on tight. Also, did you replace the ruff key?

    Black Housing DIY 1991 Wagon Morimoto Retrofit
    JDM One-Piece Headlight Lens Repair

    Comment

      #3
      Didn't torque it into spec, I was in the middle of traffic didnt dip it in oil, cleaned the threading on the bolt it's not stripped nothing seems broken..:but will do...

      Ruff key?...


      Originally posted by deevergote
      .......If they seem smart, and just trying to learn, I'll offer as much help as possible. If they seem stupid and lazy, I'll do my best to piss them off so they leave and never come back... while still answering the question.

      Comment

        #4
        There is a square key that engages a slot in the crank and a slot in the pulley to prevent the pulley from rotating relative to the crank. If the key is missing, then the pulley can rotate on the crank. If you have the key and all threads are intact, you might use a little non-permanent thread locker (Loctite blue?) on the threads for added assurance, then torque to spec.
        90 LX 4dr 5 spd 396,014 (sold 1/1/2022) - MRT: http://www.cb7tuner.com/vbb/showthread.php?t=201450
        08 Element LX FWD AT 229,000 - MRT: fleetw00d : 2008 Honda Element LX - CB7Tuner Forums

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          #5
          i used red locktite and it came off once(when i just tightened it with a rachet snug.. so i put red on it again with a air rachet, hasnt come off since

          Comment

            #6
            First, make sure the key is in there and that nothing is damaged. Then, you need to use the honda crank tool to hold the pulley stationary while you torque the bolt to 162 FT*LBS

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              #7
              DO NOT USE ANY KIND OF LOC-TITE. Oil is all you need. Loc-tite looses its strength with heat. The crank does get hot. Just be sure to torque it to spec.

              Black Housing DIY 1991 Wagon Morimoto Retrofit
              JDM One-Piece Headlight Lens Repair

              Comment

                #8
                Originally posted by djcaz_aom View Post
                DO NOT USE ANY KIND OF LOC-TITE. Oil is all you need. Loc-tite looses its strength with heat. The crank does get hot. Just be sure to torque it to spec.
                Oil will affect the torque procedure negatively as well

                Click for my Member's Ride Thread
                Originally posted by Stephen Fry
                'It's now very common to hear people say, "I'm rather offended by that", as if that gives them certain rights. It's no more than a whine. It has no meaning, it has no purpose, it has no reason to be respected as a phrase. "I'm offended by that." Well, so fucking what?' —Stephen Fry
                Eye Level Media - Commercial & Automotive Photography: www.EyeLevelSTL.com

                Comment

                  #9
                  Dip the threads with a very light coat of oil and also put a few drops of oil under the bolt head when you go to tighten it. The oil prevents galling and also prevents you from getting a false torque reading. Same with head bolts.

                  Comment

                    #10
                    FSM states to coat threads of the bolt and the seat face on the pulley then torque to 159lb-ft, and yes you should use the pulley holder tool to keep it from turning to achieve the required torque.

                    Do not use locktite...

                    Comment

                      #11
                      Originally posted by steelbluesleepR View Post
                      Oil will affect the torque procedure negatively as well
                      Read the FSM.

                      Black Housing DIY 1991 Wagon Morimoto Retrofit
                      JDM One-Piece Headlight Lens Repair

                      Comment

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