Clutch Rebuilding Project
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Thread: Clutch Rebuilding Project

  1. #1
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    Clutch Rebuilding Project

    With my engine running, engine in neutral, and clutch level released, my clutch is noisy and there is some noticeable vibration. When the clutch lever is engaged, the noise and vibration substantially decreases. I think that it is time for a clutch rebuild. I have new Barnett clutch plates and a clutch basket and bushing from a low mileage engine (relatively speaking). My question is this. Since I will be replacing the clutch basket and bushing, I should reduce the clutch noise and vibration problem quite a bit. However, I do not have a replacement transmission shaft (spindle) that is used for mounting the clutch assembly to the transmission. For those who have rebuilt clutches, where has anyone experieced the most wear: 1) clutch basket 2) clutch bushing 3) transmission spindle

  2. #2
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    the noise is not in the spindle

    the noise hides inside the clutch basket either in little notches on the sides of the tangs

    or the real culprit is inside the backing plate of the clutch are bushings to act as shock dampers

    they are hidden non serviceable and when they get old worn or ...... they rattle

    later gl500 or 1982 cx500 clutch baskets have visible springs for shock lash and dont rattle

    on th eearly type you can see some rivet part number 1

    Honda Motorcycle Parts 1978 CX500 A CLUTCH Diagram

    on the later one you can see the springs again part 1

    Honda Motorcycle Parts 1982 GL500 A CLUTCH Diagram

    you can change them but you need the 2 12 16 parts
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  3. #3
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    I have the rivet type and since I will be replacing the basket (part 1 from Diagram) along with parts 9 and 3, then I hope that I will reduce the noise / vibration problem. From your description though, it sounds like the problem that I have is entirely within part 1? The replacement clutch basket that I have seems to be a good part. The problem with the clutch was that the metal disks became moist, wet and became severly rusted. They are junk but my old metal disks are fine. Some mechanics suggest either bead blasting the metal disk surfaces or abrading them with sandpaper. What are your thoughts on this?
    Last edited by classicguy; 08-20-2015 at 05:41 PM.

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  5. #4
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    yup

    the only other thing to check is that the primary gear is not cracked

    this is what i would do or find one from a member

    here is a cheaper one

    http://www.ebay.com/itm/HONDA-1982-G...a3562e&vxp=mtr


    http://www.ebay.com/itm/82-Honda-GL5...49f605&vxp=mtr
    Last edited by murrayf; 08-20-2015 at 05:43 PM.
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  6. #5
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    Is the GL clutch a much better clutch then the original 78 CX- clutch? When I remove the front engine cover, I will check the primary gear too and hope for the best. From the transmission schematic diagram, which part number are you referring to just to make sure I know exactly what part you mean?
    Last edited by classicguy; 08-20-2015 at 05:58 PM.

  7. #6
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    if you used a gl clutch you would never hear that noise again

    i have not figured out a way of testing the old style baskets to see if they will make a noise so i just buy up gl500 clutches when i can and use those lol
    Carytowncat likes this.
    GET AN OIL FILTER ADAPTER

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  8. #7
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    Quote Originally Posted by murrayf View Post
    if you used a gl clutch you would never hear that noise again

    i have not figured out a way of testing the old style baskets to see if they will make a noise so i just buy up gl500 clutches when i can and use those lol
    As long as I can get rid of the vibration then I will be happy. This noise / vibration problem has slowely increased over the years and it is really past time to do something about it.

    If the GL clutch assembly will fit a '78 standard cx-500 engine then I should have no problems.

    If I remember correctly, I think that all I need to do is to remove the radiator to get access to remove the front engine cover. I don't think that I need to remove the front engine bracket but I probably need to remove the fan and fan shroud?

    I just don't want to remove the engine from the frame again if I don't need to.
    Last edited by classicguy; 08-20-2015 at 06:12 PM.

  9. #8
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    just pull the rad and fan to get the cover off

    you need a gl basket and the bushing and spacer amd washer that matches the gl basket
    GET AN OIL FILTER ADAPTER

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    Way to many bikes to maintain this list LOL !!

    email me at murray at murrayscarbs.com

  10. #9
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    Does anyone ever deglaze used clutch metal disks by either sand blasting the surfaces or scuffing them up with sandpaper?

  11. #10
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    It does not last long and only causes them to wear back to a smooth point

    Its not a racing bike with 200 plus hp
    GET AN OIL FILTER ADAPTER

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    Way to many bikes to maintain this list LOL !!

    email me at murray at murrayscarbs.com

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