84 R80rt: squeals and clanks

Discussion in 'Airheads' started by Andosan, Oct 2, 2012.

  1. Andosan

    Andosan Adventurer

    Joined:
    Apr 30, 2012
    Oddometer:
    68
    Location:
    Brooklyn
    Hi All,

    Had some time with the bike since my previous thread resolving charging issues:
    http://www.advrider.com/forums/showthread.php?t=806964

    I took it for a trip and everything seems to be 'okay'. Still smoking a bit and burning a bit of oil when you change a gears. I'll resolve that next.

    After that trip, being back in the city and riding around two things have happened.

    1) I've noticed that sometimes when coming to a stop IN neutral and I brake a bit hard with the front brake, there is a requisite clanking in the gears. It's same clanking sound you get if you don't put the bike in first gear all the way and release the clutch but this happens when the bike is already in neutral and I'm coming to a stop. It's as if the forward momentum from braking is causing it to catch. Not sure how to deal with this.

    2) Two days ago when I started the bike cold and drove off, I shifted into second gear and heard a loud squealing. It was then somewhat present in first gear but not in third. It continued to squeal in first and second the whole 8 min ride. Then I let the bike sit for a while and drove it again for a couple hours and didn't come back. THEN it came back yesterday when I was on the highway in 4th gear and when I shifted down to third. Pulled over and waited then it went away.

    My friend had a similar chirping when his pushrod bearing went but that was only with the clutch engaged. This sound is only present in gear so I didn't think it was the same.

    Any thoughts?
    #1
  2. bmwrench

    bmwrench Long timer

    Joined:
    Nov 10, 2006
    Oddometer:
    3,072
    Have you checked the gear oil?
    #2
  3. Andosan

    Andosan Adventurer

    Joined:
    Apr 30, 2012
    Oddometer:
    68
    Location:
    Brooklyn
    Still having the same clanking when I break in neutral.

    I've checked the gear oil several times, a few days before I wrote the original post and it was okay. It's been a little over two weeks since. I was riding it a bit around town every day or two and checked it before I took a longer ride and noticed the oil level was a bit low.

    Not sure what route I should take to figure this out. Fearing a transmission issue. Any suggestions?
    #3
  4. mykill

    mykill odd

    Joined:
    Feb 6, 2008
    Oddometer:
    1,179
    Location:
    Los Angeles
    By checking it he meant draining it into a clean container and inspecting it for debris. Transmissions do not consume gear oil like and oil-tight engine may, no oil lost in combustion. If your level is dropping there should be sticky, smelly, gooey evidence of a leak somewhere.
    #4
  5. JRP

    JRP Old guy

    Joined:
    Apr 4, 2004
    Oddometer:
    1,561
    Location:
    Hampden, MA
    Drive shaft thrust adapter? Maybe a weak or broken spring.
    #5
  6. Andosan

    Andosan Adventurer

    Joined:
    Apr 30, 2012
    Oddometer:
    68
    Location:
    Brooklyn
    Yeah, there is definitely sticky oil under the bike and it's hard to tell where it's all coming from.
    #6