2000 GL1500 Gearbox chatter in 4th and 5th gear


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dep84
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2000 GL1500 Gearbox chatter in 4th and 5th gear

Postby dep84 » Mon Jun 09, 2014 3:41 am



I have a 2000 Goldwing 1500. I have recently started having a gear box chatter when in 4th and 5th gear during coasting. If I am on the throttle no noise but as soon as I slowly release the throttle the clatter begins. If I go from throttle to no throttle the noise does not present itself. If I pull the clutch in without releasing the throttle the noise is there. It appears as long as the gearbox is under torque the noise does not present but once the torque is gone the noise is presents and it is load. It sounds and feels like gears are slipping past each other and clanking. The bike has over 145,000 miles on it. I have had it for the past 22,000 miles. The engine burns very little oil. I tore the drive line off last weekend and checked the final drive. I did not see anything out of the ordinary with it. Any ideas?



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Re: 2000 GL1500 Gearbox chatter in 4th and 5th gear

Postby WingAdmin » Mon Jun 09, 2014 9:35 am

dep84 wrote:I have a 2000 Goldwing 1500. I have recently started having a gear box chatter when in 4th and 5th gear during coasting. If I am on the throttle no noise but as soon as I slowly release the throttle the clatter begins. If I go from throttle to no throttle the noise does not present itself. If I pull the clutch in without releasing the throttle the noise is there. It appears as long as the gearbox is under torque the noise does not present but once the torque is gone the noise is presents and it is load. It sounds and feels like gears are slipping past each other and clanking. The bike has over 145,000 miles on it. I have had it for the past 22,000 miles. The engine burns very little oil. I tore the drive line off last weekend and checked the final drive. I did not see anything out of the ordinary with it. Any ideas?


Does this noise ever happen when the bike is sitting still? Can you put it in 4th or 5th gear, pull the clutch in at a stop, and get the noise to happen?

Try the same thing when the bike is on a slope - try it with the bike both pointing upward as well as downward.

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Re: 2000 GL1500 Gearbox chatter in 4th and 5th gear

Postby dep84 » Mon Jun 09, 2014 11:30 am

The bike only makes the noise when riding. I can not re create the noise while the bike is stationary. I was able to run through all the gears with no noise while stationary. It did not make any noise during an incline or decline. I can here the clutch engage and disengage when I pull the clutch lever in. It sounded like a bearing was engaging, a low rumbling noise, but not the clattering noise I hear while driving. I did notice the noise today in 3rd gear during slight deceleration. The noise will occur during acceleration from 4th to 5th gear, just for a split second when the clutch is engaged to switch gears. It does not happen on the other gears. Hope this helps or at least eliminates something. When I took the final drive off to inspect I did not open it up. I just looked at the splines. Could it be the internal components of the final drive? Thanks for the help.

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Re: 2000 GL1500 Gearbox chatter in 4th and 5th gear

Postby WingAdmin » Mon Jun 09, 2014 4:39 pm

It's not likely to be the final drive, or you would hear it in all gears, not just 4th and 5th. I'm guessing it's got something to do with the shifter fork, but it's odd, what you're describing is not normal for a worn shifter fork.

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Re: 2000 GL1500 Gearbox chatter in 4th and 5th gear

Postby ct1500 » Mon Jun 09, 2014 7:49 pm

With 145k I would be looking at a U joint/spline/worn part issue in the driveline.
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Re: 2000 GL1500 Gearbox chatter in 4th and 5th gear

Postby WingAdmin » Mon Jun 09, 2014 7:51 pm

ct1500 wrote:With 145k I would be looking at a U joint/spline issue in the driveline.


Certainly possible - but this too should show up in more than 4th and 5th gear. Are you sure you can't get it to happen in 3rd gear as well?

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Re: 2000 GL1500 Gearbox chatter in 4th and 5th gear

Postby ct1500 » Mon Jun 09, 2014 7:56 pm

The shaft would be spinning faster in 4 and 5th with lower torque and any problems would likely be more prevalent. Very much doubt a 2000 model would have trans. problems, clutch maybe at that mileage.
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Re: 2000 GL1500 Gearbox chatter in 4th and 5th gear

Postby dep84 » Mon Jun 09, 2014 10:46 pm

I can get it to do it in third gear, not as prevalent as 4th and 5th gear.

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Re: 2000 GL1500 Gearbox chatter in 4th and 5th gear

Postby WingAdmin » Tue Jun 10, 2014 9:08 am

dep84 wrote:I can get it to do it in third gear, not as prevalent as 4th and 5th gear.


OK, then I'm going to go with ct1500 - I would look at the U-joint. Chances are this is not a transmission problem at all.

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Re: 2000 GL1500 Gearbox chatter in 4th and 5th gear

Postby dep84 » Wed Jun 11, 2014 3:56 am

I recorded an audio of the sound. The audio is me going through all the gears and then coasting. I don't know how to post the audio on this forum. I also discovered that if I decel with no throttle then pull the clutch in, no noise is heard until I drop it into 4th gear with the clutch still engaged. Once I release the clutch the noise goes away.

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Re: 2000 GL1500 Gearbox chatter in 4th and 5th gear

Postby dep84 » Fri Jun 13, 2014 6:40 pm

Just got back from the dealership, they told me it is the transmission output bearing. They quoted me $2400 to fix. I am not sure that is what it is. Any good mechanics in the twin cities metro area I can bring it by to have looked at?

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Re: 2000 GL1500 Gearbox chatter in 4th and 5th gear

Postby WingAdmin » Mon Jun 16, 2014 10:45 am

dep84 wrote:Just got back from the dealership, they told me it is the transmission output bearing. They quoted me $2400 to fix. I am not sure that is what it is. Any good mechanics in the twin cities metro area I can bring it by to have looked at?


Did they check the U-joint for free play?

If it is the output bearing, I'd just look at swapping the engine. Anytime you get into transmission issues, it's cheaper to swap the engine than it is to fix it.

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Re: 2000 GL1500 Gearbox chatter in 4th and 5th gear

Postby dep84 » Mon Jun 16, 2014 9:48 pm

Brought it to another mechanic, he test drove it and stated it was the 5th gear fork wearing out. He has repaired a couple of these already. It still will be 3,000 to fix. He would rather repair than swap engines because you don't know what the new engine's forks are like. If you repair your own you know exactly what is fixed. thanks for all the help.

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Re: 2000 GL1500 Gearbox chatter in 4th and 5th gear

Postby dep84 » Sat Aug 30, 2014 4:11 am

It turned out to be the u-joint. The u-joint was just about destroyed once I got it out. I was surprised after looking at it that it didn't fail while I was driving it. Thanks to all that had suggestions. Drives like new. Looking back I had a few symptoms that I didn't pick up right away. The rearview mirrors were vibrating at highway speeds along with feeling the vibration on the grips. I just brushed it off due to the high miles. Once again, thanks to all.

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Re: 2000 GL1500 Gearbox chatter in 4th and 5th gear

Postby redial » Sat Aug 30, 2014 9:34 am

And thank you for closing the loop and letting us know the outcome. Keep those smiles up.


Len in Kapunda

The world is not going to finish today, as it is already tomorrow in Australia and New Zealand, and other islands of foreign nations such as Guam and Samoa.


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