U-Joint noise? - Page 2

redjay · 01-13-2023, 01:42 PM

Quote:

Originally Posted by mick56

That just sounds like the normal slack between the cogs, slapping together on contact.

I thought the same thing.

virtualgeorge · 01-13-2023, 04:58 PM

So its just the normal backlash of a bike with 61K? Went and talked to a mechanic today and he said if it was his bike he would leave it, they make noise, its normal as I have seen many others say over the years. I reckon I will put it back together & keep riding.

mick56 · 01-13-2023, 06:01 PM

Quote:

Originally Posted by virtualgeorge

So its just the normal backlash of a bike with 61K? Went and talked to a mechanic today and he said if it was his bike he would leave it, they make noise, its normal as I have seen many others say over the years. I reckon I will put it back together & keep riding.

Mileage is not a factor in this case. That would have made the same noise from new. There has to be a certain amount of slack there. Every vehicle has the same thing. Jack your car up, and pull a wheel back and forth. You will hear, and feel the same thing, in the differential.

redjay · 01-13-2023, 07:00 PM

Was the universal joint replaced ? Was the original worn ?

virtualgeorge · 01-13-2023, 08:21 PM

Quote:

Originally Posted by mick56

Mileage is not a factor in this case. That would have made the same noise from new. There has to be a certain amount of slack there.

The noise I hear is new and only when accelerating at higher speeds, just noticed something different recently. Had the bike for like 6 or 7 years and occasionally cruise at around 90mph and it usually sounds so nice :) If I was wearing a helmet though I may not even hear it. Always appreciate your comments Mick, thanks!

virtualgeorge · 01-13-2023, 08:26 PM

Quote:

Originally Posted by redjay

Was the universal joint replaced ? Was the original worn ?

Orignal looks good and I showed it to a
"retired" mechanic today and he said its good. Have a new one though, perhaps I should replace while I have the drive shaft out? The orig does seem just fine.

redjay · 01-13-2023, 08:50 PM

If you have the part and the driveshaft is apart I would replace the universal joint.

virtualgeorge · 01-13-2023, 09:56 PM

Quote:

Originally Posted by redjay

If you have the part and the driveshaft is apart I would replace the universal joint.

Will do, thanks!

mick56 · 01-14-2023, 04:34 AM

Quote:

Originally Posted by virtualgeorge

Orignal looks good and I showed it to a
"retired" mechanic today and he said its good. Have a new one though, perhaps I should replace while I have the drive shaft out? The orig does seem just fine.

You are over half way, so it would be the smart thing to do. It would also eliminate it as a possible cause of the noise.

virtualgeorge · 01-14-2023, 10:42 PM

When I made the video I was twisting the gear back and forth but actually I would hear that same sound when rolling the bike or spinning the tire when on the lift.

I saw this old thread which sounded like the exact same issue so suspected the bevel gear bearing? http://vulcanbagger.com/forums/showt...l+gear+bearing

All the old pics are gone though. But before I put it back together, is there any way to rule out the bevel gear bearing? His symptoms did seem very similar and I do have the bearing in the freezer.

**MAS Tequila** · 01-15-2023, 06:32 AM

Call me @ 5612103399, it's one of the bevel gear bearings.

I've done a few of these in my time.

**vulcanscott** · 01-15-2023, 10:52 AM

take Mas up on His Offer

virtualgeorge · 01-15-2023, 12:19 PM

Yes I'm going to talk to him today, I wouldn't pass up on that offer ��

virtualgeorge · 02-09-2023, 10:15 PM

I ask a lot of bonehead questions & not very mechanically inclined but thanks to MAS I got the bevel gear bearing replaced. MAS is a good human, he gave a few tips on things I would have never figured out on my own. I appreciate everyone else's help as well over the years :)

Didn't see many flakes on the screen & when I removed the housing I ran a magnet around the inside and it did pick up some very fine bearing flakes. So I guess I will do a few oil changes with some cheap oil to hopefully flush them out?

01-15-2023, 06:32 AM	#26
MAS Tequila Join Date: Jan 2009 Location: Psychiatric Ward FL Posts: 3,429	Call me @ 5612103399, it's one of the bevel gear bearings. I've done a few of these in my time. __________________ MT 2016 FLHP Psychiatric Ward FL VBA 936
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01-13-2023, 04:58 PM	#17
virtualgeorge Member Join Date: Jul 2015 Location: AJ, Arizona Posts: 57	So its just the normal backlash of a bike with 61K? Went and talked to a mechanic today and he said if it was his bike he would leave it, they make noise, its normal as I have seen many others say over the years. I reckon I will put it back together & keep riding.
	0

01-13-2023, 07:00 PM	#19
redjay Top Contributor Join Date: Feb 2008 Location: Ontario Posts: 6,928	Was the universal joint replaced ? Was the original worn ?
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01-13-2023, 08:50 PM	#22
redjay Top Contributor Join Date: Feb 2008 Location: Ontario Posts: 6,928	If you have the part and the driveshaft is apart I would replace the universal joint.
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01-14-2023, 10:42 PM	#25
virtualgeorge Member Join Date: Jul 2015 Location: AJ, Arizona Posts: 57	When I made the video I was twisting the gear back and forth but actually I would hear that same sound when rolling the bike or spinning the tire when on the lift. I saw this old thread which sounded like the exact same issue so suspected the bevel gear bearing? http://vulcanbagger.com/forums/showt...l+gear+bearing All the old pics are gone though. But before I put it back together, is there any way to rule out the bevel gear bearing? His symptoms did seem very similar and I do have the bearing in the freezer.
	0

01-15-2023, 10:52 AM	#27
vulcanscott Join Date: Oct 2013 Location: chandler okla Posts: 854	take Mas up on His Offer
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01-15-2023, 12:19 PM	#28
virtualgeorge Member Join Date: Jul 2015 Location: AJ, Arizona Posts: 57	Yes I'm going to talk to him today, I wouldn't pass up on that offer ��
	0

02-09-2023, 10:15 PM	#29
virtualgeorge Member Join Date: Jul 2015 Location: AJ, Arizona Posts: 57	I ask a lot of bonehead questions & not very mechanically inclined but thanks to MAS I got the bevel gear bearing replaced. MAS is a good human, he gave a few tips on things I would have never figured out on my own. I appreciate everyone else's help as well over the years :) Didn't see many flakes on the screen & when I removed the housing I ran a magnet around the inside and it did pick up some very fine bearing flakes. So I guess I will do a few oil changes with some cheap oil to hopefully flush them out?
	0