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Thread: GS1100e new engine noise has me rattled

  1. #11
    Join Date
    May 2004
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    St. Catharines, On.
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    7,648

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    Thanks for the follow-up.
    Fingers crossed for a quiet start-up.
    2@ \'78 GS1000

  2. #12
    Join Date
    Feb 2018
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    oregon city, Or.
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    Nothing of note under the Valve cover, no scoring of cam lobes or rockers, only minor valve adjustment needed on a couple valves. Rocked crank forward and back an noticed a clanking noise that might be entirely normal, gonna compare it to my son's '82 GS1100e...
    '82 & '83 GS1100e

  3. #13
    Join Date
    Feb 2018
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    oregon city, Or.
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    Didn't ride a whole lot this past season due to the noise, prolly less than 200 miles. Gotta get to the bottom of it a new video the noise is pretty evident. Thoughts???

    https://www.youtube.com/watch?v=8OnnWxEjFZs
    '82 & '83 GS1100e

  4. #14
    Join Date
    Jul 2013
    Location
    Wexford, Ireland
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    Is the cam chain tensioner working properly?
    If it's locked up, backing out the wheel will make no difference to the sound.
    80 GS850GT
    79 Z400B

  5. #15
    Join Date
    Sep 2012
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    Ireland
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    Hearing a clank as you rock the crank back and forward isn't good.
    I have an engine sitting here that clanks quite well, but it's definitely noticeable as being at firing rate on one cylinder, so it's a big end roller bearing gone. Pulling plug leads in turn seemed to narrow it to number 1, iirc.

    Yours doesn't sound quite like that, might be a main bearing.
    ---- Dave
    79 GS850N - Might be a trike soon.
    80 GS850T Single HIF38 S.U. SH775, Tow bar, Pantera II. Gnarly workhorse & daily driver.
    79 XS650SE - Pragmatic Ratter - goes better than a manky old twin should.
    92 XJ900F - Fairly Stock, for now.

    Only a dog knows why a motorcyclist sticks his head out of a car window

  6. #16
    Join Date
    Feb 2018
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    oregon city, Or.
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    When I turn back the tensioner wheel a bit, I can hear cam chain noise develop, and it tensions right back up when I release the wheel. I have a solid locking tensioner but haven't installed it don't think I need to.
    '82 & '83 GS1100e

  7. #17
    Join Date
    May 2002
    Location
    Bellingham Washington
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    2,040

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    You mentioned the starter clutch was tight, but doesn't mean 1-2 bolts aren't broken or loose. It's about $40 for the rotor puller & if planning on owning a 1100 for any length of time is a relatively inexpensive tool to have in your quiver.

    How are the exhaust manifold gaskets?

    On a sadder note, one of my 1150/1229 engines had a terrible rattle, it turned out to be #3 connecting rod on the big end.
    Have yet to deal with it as it's a welded Falicon Super Crank. Will have to call John Pearson in Ohio again, as he already replaced the left end 5 years back.
    GS\'s since 1982: 55OMZ, 550ES, 750ET, (2) 1100ET\'s, 1100S, 1150ES. Current ride is an 83 Katana. Wifes bike is an 84 GS 1150ES

  8. #18
    salty_monk's Avatar
    salty_monk is offline Forum LongTimer GSResource Superstar
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    Oct 2006
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    When you had the nut off the clutch did you pull the basket & check the back? Wondering if you may have a broken spring back there or one that's coming loose....

    1980 GS1000G - Sold
    1978 GS1000E - Finished!
    1980 GS550E - Fixed & given to a friend
    1983 GS750ES Special - Sold
    2009 KLR 650 - Sold - gone to TX!
    1982 GS1100G - Rebuilt and finished. - Sold

    www.agadisplay.com
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    TWINPOT BRAKE UPGRADE LINKY: http://www.thegsresources.com/_forum...e-on-78-Skunk/

  9. #19
    Join Date
    Feb 2018
    Location
    oregon city, Or.
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    57

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    Sorry for the slow reply, yeah I had the clutch off and all springs on the basket were snug. Gonna pull down the engine bit by bit till I find the source, starting with the alternator/starter clutch...It'd be cool if someone had an archive of different engine failure sounds...
    '82 & '83 GS1100e

  10. #20
    Join Date
    Feb 2018
    Location
    oregon city, Or.
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    I got this bike rather cheap because it had cam chain noise, turned out someone had locked down the auto tensioner rather than leaving the locking bolt/nut backed off so the auto tensioner would work. Much diff noise than what I'm dealing with, tho.
    '82 & '83 GS1100e

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