"bearing" type whine at 1.5-2.5 rpm


Information and questions on GL1500 Goldwings (1988-2000)
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valkriderj
Posts: 4
Joined: Sat Jan 12, 2019 11:25 am
Location: bullhead city az
Motorcycle: 2000 valkrie interstate

"bearing" type whine at 1.5-2.5 rpm

Post by valkriderj » Sat Jan 12, 2019 11:44 am



My 2000 Valkrie Interstate 1500 (just crossed 100k miles and still runs great) just started a "bearing" like whine
at 1.5k to 2.5k rpm. it sounds like its coming from the front right side of the bike while riding. There is no decrease
in performance or other motor noise I can hear.
Would I be on the right track to start by looking at the alternator bearings?
What else should I look at?
I have not used a stethoscope yet so I could be way off on location of the noise.
If its the alternator, am I riding on "borrowed time"? (so to speak)



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offcenter
Posts: 598
Joined: Sat Sep 22, 2012 2:10 pm
Location: Lake Hopatcong, New Jersey
Motorcycle: 99 Gl-1500 SE
76 GL-1000
77 Honda Trail 90

Re: "bearing" type whine at 1.5-2.5 rpm

Post by offcenter » Sat Jan 12, 2019 12:13 pm

Have you ever changed the timing belts?
My first guess is a bearing going bad in a belt tension pulley.
If your Val is like other Goldwings, the alternator is on
the left rear of the engine.
George in Jersey.
99 Goldwing GL-1500 SE
76 Goldwing Gl-1000
77 Honda CT-90 "Trail 90"

valkriderj
Posts: 4
Joined: Sat Jan 12, 2019 11:25 am
Location: bullhead city az
Motorcycle: 2000 valkrie interstate

Re: "bearing" type whine at 1.5-2.5 rpm

Post by valkriderj » Sat Jan 12, 2019 1:30 pm

I have checked. Had the cover off and removed the belt tension enough to check for play in the idlers. Couldn't feel any. Still could be the issue
though and I just couldn't move them by hand.

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CrystalPistol
Posts: 761
Joined: Wed Mar 10, 2010 9:07 pm
Location: Shenandoah Valley of Virginia
Motorcycle: 1997 GL1500SE/'98 Lehman Trike

Re: "bearing" type whine at 1.5-2.5 rpm

Post by CrystalPistol » Sat Jan 12, 2019 5:30 pm

Too tight belt(s) will sing, too loose will flap like.
Image

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Erdeniz Umman
Posts: 851
Joined: Tue Oct 27, 2015 12:33 am
Location: Ankara Turkey
Motorcycle: 2000 GL1500SE

Re: "bearing" type whine at 1.5-2.5 rpm

Post by Erdeniz Umman » Sun Jan 13, 2019 3:17 am

Could you record the noise and share it?

valkriderj
Posts: 4
Joined: Sat Jan 12, 2019 11:25 am
Location: bullhead city az
Motorcycle: 2000 valkrie interstate

Re: "bearing" type whine at 1.5-2.5 rpm

Post by valkriderj » Sun Jan 13, 2019 8:18 am

I will try to do that.

valkriderj
Posts: 4
Joined: Sat Jan 12, 2019 11:25 am
Location: bullhead city az
Motorcycle: 2000 valkrie interstate

Re: "bearing" type whine at 1.5-2.5 rpm

Post by valkriderj » Tue Jan 15, 2019 5:20 pm

I think my issue is indeed the idler pulley on the right side.
Can I use idlers from a 1988 GL 1500 and will they bolt up without any changes?

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Erdeniz Umman
Posts: 851
Joined: Tue Oct 27, 2015 12:33 am
Location: Ankara Turkey
Motorcycle: 2000 GL1500SE

Re: "bearing" type whine at 1.5-2.5 rpm

Post by Erdeniz Umman » Tue Jan 15, 2019 5:44 pm

According to partzilla catalog, all years of GL1500 including Valkyries, even GL1200 have the same part number.
14510-MG9-008



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