Author [NL] [FR] [ES] [DE] [SE] [IT] Topic: Warm start timing chain clatter  (Read 1607 times)

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  • Offline LarryJa   us

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    Offline LarryJa

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    Warm start timing chain clatter
    on: Aug 09, 2019, 12.18 pm
    Aug 09, 2019, 12.18 pm
    Lately, I've noticed an unusual anomaly on my bike.
    When I start up the bike, after a good ride, when it's been set on the sidestand for a bit, but still hot, the timing chain will clatter for a good while(up to 20 sec.). Then, as oil pressure works the tensioner out(?), everything quiets down to normal.
    The bike does not do this on cold starts, first thing. However, whenever I lay the bike up in the garage, I always put it on the centerstand.
    My 2013 SE has over 60k miles on it & had the head recall done early in it's life.
    It's interesting, to me, that the cam chain tensioner & guides are only loose on hot restarts, after the bike has been on the sidestand for a while.
    I'm using Castrol 4T full synthetic 10W50 oil.
    Any ideas what's going on?
    A good man once told me, "Don't sell your bike. It's your soul."....

  • Offline Saddle Tramp   us

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    Offline Saddle Tramp

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    Re: Warm start timing chain clatter
    Reply #1 on: Aug 09, 2019, 12.49 pm
    Aug 09, 2019, 12.49 pm
    Maybe try putting your Trophy on the centerstand while hot, and see if you get the same results. If not, I would probably attribute the noise on start-up to oil draining to one side of the engine while at rest.

  • Offline janfmiller   us

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    Offline janfmiller

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    Re: Warm start timing chain clatter
    Reply #2 on: Aug 09, 2019, 03.03 pm
    Aug 09, 2019, 03.03 pm
    My '13 did this as well. 

    I only put it on the centerstand when I check oil or tire pressure or work on it.

    It took forever to convince the dealer to replace the cam chain tensioner. 
    Once that was done, problem solved.

    My '13 has 88,000 miles on it now, strong as ever...
    1977 Suzuki TS-185
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  • Offline earthman   gb

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    Re: Warm start timing chain clatter
    Reply #3 on: Aug 09, 2019, 09.32 pm
    Aug 09, 2019, 09.32 pm
    *Originally Posted by janfmiller [+]
    My '13 did this as well. 

    I only put it on the centerstand when I check oil or tire pressure or work on it.

    It took forever to convince the dealer to replace the cam chain tensioner. 
    Once that was done, problem solved.

    My '13 has 88,000 miles on it now, strong as ever...

    Out of interest, what mileage had the bike covered when the tensioner started to play up?

  • Offline LarryJa   us

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    Offline LarryJa

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    Re: Warm start timing chain clatter
    Reply #4 on: Aug 09, 2019, 10.52 pm
    Aug 09, 2019, 10.52 pm
    For mine, IDK. I only got the bike about 2000 miles ago.
    I don't have audible experience before that, just documentation on the head recall from PO.
    A good man once told me, "Don't sell your bike. It's your soul."....

  • Offline LarryJa   us

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    Offline LarryJa

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    Re: Warm start timing chain clatter
    Reply #5 on: Aug 10, 2019, 09.35 pm
    Aug 10, 2019, 09.35 pm
    I am still baffled as to why it does this on hot restarts only.
    A good man once told me, "Don't sell your bike. It's your soul."....

  • Offline janfmiller   us

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    Offline janfmiller

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    Re: Warm start timing chain clatter
    Reply #6 on: Aug 11, 2019, 02.56 pm
    Aug 11, 2019, 02.56 pm
    *Originally Posted by earthman [+]
    Out of interest, what mileage had the bike covered when the tensioner started to play up?

    Mine did it from within the first few weeks from new, under 2000 miles for sure.  At the first checkup I asked about it, and got a 'keep an eye on it' answer; they had replaced the head and I expected the CCT to be replaced as well.  Nope ( and they didn't replace the air cleaner either, none in stock!)

    At 20K I made a huge amount of noise about it, it was way more evident at cold start and they promised they'd pay attention.  When I picked it up, just before leaving on a trip, the 'tech' apologized and admitted he'd never done that until just before I arrived, and agreed the noise was a bad CCT, but they had none is stock.  They ordered one, and I had to return after my trip to have it installed.  No problem since.
    Last Edit: Aug 11, 2019, 03.00 pm by janfmiller
    1977 Suzuki TS-185
    1974 Kawasaki Z-1 903
    2021 Honda Africa Twin Adventure Sports ES NON-DCT

  • Offline Coconut   gb

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    Offline Coconut

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    Re: Warm start timing chain clatter
    Reply #7 on: Aug 11, 2019, 03.34 pm
    Aug 11, 2019, 03.34 pm
    I am still baffled as to why it does this on hot restarts only.

    The Cam Chain tensioner is pressurised by engine oil, and when hot the oil is thinner,
    so it may drain past any internal seals more easily than when the engine is cold, and the is thicker.



    Last Edit: Jan 07, 2020, 06.49 pm by Coconut

     



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