howling noise and more


Information and questions on GL1200 Goldwings (1984-1987)
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thirdstorybase
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howling noise and more

Postby thirdstorybase » Tue Jun 26, 2012 5:44 pm



i have recently noticed a howling noise coming from the rear of my bike at around 65-75 mph. i tried to replicate the noise while on the ce nterstand to see if it was a wind noise. when i put the bike into first gear on the stand i noticed at idle that there is a clunking noise coming from thr rear end. i checked the rear end oil and its ok. im thinking bearings. any other ideas. i have a video but i think it may be too large to post. i will try
thanks
kevin



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thirdstorybase
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Re: howling noise and more

Postby thirdstorybase » Tue Jun 26, 2012 5:54 pm

btw, i dont hear this clunking noise when riding with the tire on the ground

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WingAdmin
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Re: howling noise and more

Postby WingAdmin » Tue Jun 26, 2012 9:21 pm

Even before I read through your message, I thought; "bearings." A howling noise is a classic bearing noise.

You can upload your video to YouTube and link to it directly here if you want to let others hear what you're talking about.

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thirdstorybase
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Re: howling noise and more

Postby thirdstorybase » Tue Jun 26, 2012 11:12 pm





its not a great video but maybe this will help.

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WingAdmin
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Re: howling noise and more

Postby WingAdmin » Wed Jun 27, 2012 9:52 am

The fact that you're hearing this with the wheel suspended and not when it's under load on the ground points toward driveline. I would first pull the rear wheel off and have a look at the condition of the final drive splines, as well as the driveshaft splines.

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Sazone
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Re: howling noise and more

Postby Sazone » Mon Jan 06, 2014 4:06 pm

Hi! I am having exactly the same problem now =( Have you found the solution?

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WingAdmin
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Re: howling noise and more

Postby WingAdmin » Mon Jan 06, 2014 7:55 pm

I would also have a look at the condition of the U-joint. That could be the source of the clunking you're hearing, and would typically go away like you hear when speeding up, or under load.

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Sazone
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Re: howling noise and more

Postby Sazone » Tue Jan 07, 2014 9:07 am

WingAdmin wrote:I would also have a look at the condition of the U-joint. That could be the source of the clunking you're hearing, and would typically go away like you hear when speeding up, or under load.
Thanks! I have just removed the wheel and final drive for inspection. Tomorrow I will check the U-joint.
PS. But it cleary hears that those sounds are coming right from the final drive unit.
PPS. I have noticed a little play of flange (the one that on the wheel and connected with the final drive). Is it OK? (I am really sorry for my english :D)
PPPS. Here is the pic)
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virgilmobile
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Re: howling noise and more

Postby virgilmobile » Tue Jan 07, 2014 11:55 am

WingAdmin wrote:The fact that you're hearing this with the wheel suspended and not when it's under load on the ground points toward driveline. I would first pull the rear wheel off and have a look at the condition of the final drive splines, as well as the driveshaft splines.


I tend to agree...it just sounds sloppy....like there's too much play in at least one joint...

I too suspect the drive shaft splines and coupler,the wheel coupler splines and rubber bushings in the wheel.

Also,when all is done,properly lube the whole thing and check the differential gear play..Change the oil in the differential and sync the carbs...
When in gear with the engine off,there should be very little rotation ability on the rear wheel.
I think mine would move,maybe 1/2" at bottom of the tire.

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86pearlblue
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Re: howling noise and more

Postby 86pearlblue » Thu Jan 23, 2014 4:33 pm

Here's a screen shot of the manual for the final drive. It would seem to suggest that there be no play between the flange and the wheel when properly lubricated (moly 60).
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WingAdmin
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Re: howling noise and more

Postby WingAdmin » Mon Jan 27, 2014 2:46 pm

You're correct, there should be no free play (lash) between the driven flange and the wheel hub. The rubber dampers decouple the engine pulses from the wheel, but over time they wear out and the holes enlarge. This causes driveline lash, where the wheel can move forward and back with the driveshaft held still.

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Sazone
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Re: howling noise and more

Postby Sazone » Sun Apr 27, 2014 10:12 am

Two weeks ago i have bought and istalled rear bearings. I followed the 86pearlblue's advice:
86pearlblue wrote:... there be no play between the flange and the wheel when properly lubricated (moly 60).
That's what i did) - I added a super-awesome Soviet grease :D in the flange-wheel connection. And.... Now there are no howling and knocking noises (like those ones from the video from the top of the post). So i want to thank everyone, who helped me with advices :D - Thank you very much) Now I'm back on the road!)




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