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Thread: bearing noise?

  1. #1
    apriliaforum Junkie
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    bearing noise?

    OK, so I pulled my RSVR out for the first ride of the year and in the middle of the day noticed that I have a bearing type noise in with the clutch pulled and coasting... think it might be in first only but I need to test a little more.

    Is there anything obvious I should be looking at? Does this sound very familiar to anyone?
    2001 Aprlia RSV Mille R, Flash Yellow
    RSV Evo Chip with Power Commander, Heli-bars, MiVV GP Slip-on uncorked, Galfer Waves dragging HH pads, EvoII airbox, Acculign Rearsets

  2. #2
    apriliaforum expert kzmille's Avatar
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    Is this something you hear or do you feel it in the clutch lever? If it is the latter, your clutch release bearing is going bad. While not exactly common there have been a number of failures reported. Best to fix it before it disintegrates.

    If it is something you are hearing, you will just have to track it down or provide some more information.

  3. #3
    apriliaforum expert marcodarq's Avatar
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    if this is a very faint knocking type of noise that is present when you have the clutch lever pulled in, then goes away when you let the lever out,,,,like KZ said! both of my bikes have done it for a couple of years, but i've been into the clutches on both, so i can monitor the bearing condition,,,the main thing is if the noise goes away when you let out the clutch lever,,,,,it's not a big deal to fix either, and it is a quite common thing in my experience.
    marco

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    apriliaforum expert Ozman2downs's Avatar
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    my ape did that a few years ago on an early spring ride like this, about 2 days into the ride, when oil level got low.

    how's your oil level?

    what type of oil? I also notice full syns allow for more audibility across the board in all my bikes and cars...changed oil lately?

    In fact, i don't run syns in my jeep anymore...the turboed inline 6 is really really noisy with synthetic oils and the noise just annoys the piss out of me standard 40w chevron oil shuts her up real good. wish my ex would try some
    Victory comes with a price!

  5. #5
    apriliaforum expert pdxmille's Avatar
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    Quote Originally Posted by kzmille View Post
    Is this something you hear or do you feel it in the clutch lever? If it is the latter, your clutch release bearing is going bad. While not exactly common there have been a number of failures reported. Best to fix it before it disintegrates.

    If it is something you are hearing, you will just have to track it down or provide some more information.
    can you post the factory parts diagram of the clutch release bearing ? So I know which one needs to be replaced if I start encountering this?
    Brad B.

    2006 ZX14 ***SOLD****
    2000 RSV Mille,***SOLD***

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    apriliaforum expert kzmille's Avatar
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    apriliaforum expert BrummyMax's Avatar
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    Quote Originally Posted by kzmille View Post
    You are so obliging KZ! Can you make me a cup of tea and warm up my slippers?


  8. #8
    apriliaforum expert pdxmille's Avatar
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    Quote Originally Posted by BrummyMax View Post
    You are so obliging KZ! Can you make me a cup of tea and warm up my slippers?


    Indeed! Thanks kz! I thought that was the part, just wanted to make sure...
    Brad B.

    2006 ZX14 ***SOLD****
    2000 RSV Mille,***SOLD***

  9. #9
    apriliaforum expert kzmille's Avatar
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    Quote Originally Posted by BrummyMax View Post
    You are so obliging KZ! Can you make me a cup of tea and warm up my slippers?

    No, sorry. I do have my limits.

  10. #10
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    Quote Originally Posted by kzmille View Post
    Is this something you hear or do you feel it in the clutch lever? If it is the latter, your clutch release bearing is going bad. While not exactly common there have been a number of failures reported. Best to fix it before it disintegrates.

    If it is something you are hearing, you will just have to track it down or provide some more information.
    Yea, I was thinking release bearing too. It is with the clutched pulled in coasting. I can for sure feel it but I think I was hearing it too (tough to tell with wind noise and an uncorked MIVV).

    My experience tells me that if the bike is stopped, in or out of gear, it is the release bearing if you l pull the clutch lever and hear/feel the noise. I am not sure this is the case here... I think I am getting some feedback through the lever but the bike needs to be rolling... is that possible? Pleaces I need to look if it is?

    And yes, I am definitely out to resolve this before it takes out a bunch of other stuff too...
    2001 Aprlia RSV Mille R, Flash Yellow
    RSV Evo Chip with Power Commander, Heli-bars, MiVV GP Slip-on uncorked, Galfer Waves dragging HH pads, EvoII airbox, Acculign Rearsets

  11. #11
    apriliaforum expert kzmille's Avatar
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    The release bearing is turning any time the engine is running and the clutch engaged. With the engine running the only time the release bearing is not turning is with the bike not moving and in gear with the clutch released. It only has a load on it when you pull the clutch though and any sound or roughness will change with engine rpm.
    Last edited by kzmille; 08-13-2010 at 06:07 PM.

  12. #12
    apriliaforum expert pdxmille's Avatar
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    is replacing this bearing as easy as it looks?
    Brad B.

    2006 ZX14 ***SOLD****
    2000 RSV Mille,***SOLD***

  13. #13
    apriliaforum expert kzmille's Avatar
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    If you have mechanical skills it is pretty straight forward. You have to remove the outer clutch cover and the pressure plate. The bearing outer race is an interference fit in the pressure plate. If you heat the plate a little the bearing will drop out easily or might need a couple taps.

  14. #14
    apriliaforum expert pdxmille's Avatar
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    sweet! I get to play with a blow torch AND a hammer on my bike! woo hoo!
    Brad B.

    2006 ZX14 ***SOLD****
    2000 RSV Mille,***SOLD***

  15. #15
    apriliaforum Junkie
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    Quote Originally Posted by kzmille View Post
    The release bearing is turning any time the engine is running, clutch in or out. It only has a load on it when you pull the clutch though and any sound or roughness will change with engine rpm.
    OK, so I went out and put the bike up on the rear wheel stand and played around a little... now I remember why I was a little uncomfortable with the sound and unable to determine where it is coming from.

    Engine on, in neutral and as the clutch starts to take up, right at the release point, I get a pretty good vibration... typical of what a release bearing going bad would feel like. This is the same with or without the bike being in gear (remember I am on the rear wheel stand for this). The vibration in the clutch lever seems to be most prominent at 1000-1500 RPM... above that and I do not really feel it at all.

    Here is the rub...
    In first gear I rev the bike up to about 5k and then pull the clutch lever in as I let off the throttle. The kids think it sounds like a dying dog in the house. I get a wind that decreases with the speed of the rear wheel and stop immediately with the rotation of the wheel.

    I would think that I have two things going on here but they both started at the same time. One (the vibration felt through the lever) would seem to the the release bearing while noise or whine in sync with the rear wheel speed would seem to be something like an output shaft bearing.

    Is this making any sense? I am very familiar with the mechanicals in an automobile format and I know that the motorcycle driveline in pretty much the same, though just repackaged with some slight differences. But as I said, I am not sure that I can say the two "concerns" are coming from the same release bearing... or are they?
    2001 Aprlia RSV Mille R, Flash Yellow
    RSV Evo Chip with Power Commander, Heli-bars, MiVV GP Slip-on uncorked, Galfer Waves dragging HH pads, EvoII airbox, Acculign Rearsets

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