top box noise I hope


Information and questions on GL1100 Goldwings (1980-1983)
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squirrel
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Location: portsmouth uk
Motorcycle: 1982 gl1100c (interstate)

top box noise I hope

Postby squirrel » Thu Feb 12, 2015 10:15 am



Recently started hearing an intermittant rattling noise from rear of bike .my top box catches are a little loose but I don't think it's them as the noise is quite loud . All the rear end looks good bolts all tight. At a loss and annoyed any help appreciated



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WingAdmin
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1982 GL1100A Aspencade (sold)
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Re: top box noise I hope

Postby WingAdmin » Thu Feb 12, 2015 1:11 pm

Do this with a helper. Put the bike on the centerstand. Have someone keep weight on the front wheel to keep it on the ground. Better yet, put a 2x6 under the center stand, to get the rear wheel an extra inch and a half in the air.

Fasten something with a bit of weight VERY SECURELY around one of the spokes of the rear wheel. 1/4 lb would be about as much as I would use for this. Several turns of Romex might work, with the ends secured tightly to one another with a hose clamp. The idea is to create an imbalance on the wheel, but not extend beyond the wheel itself, so it doesn't contact anything. Rotate the wheel several times to make sure it has clearance. Keep in mind the weight may deform somewhat from centrifugal force, you'll want to take this into account.

Start the bike up and put it in first gear. Start the rear wheel rotating. You will feel the imbalance through the bike as vibration. The faster the wheel rotates, the higher the frequency of vibration. At some point, you will hit the resonant frequency of whatever on the bike is rattling, which will enable you to walk around and find the exact source of vibration.

Be careful, and do this at your own risk!

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squirrel
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Re: top box noise I hope

Postby squirrel » Fri Feb 13, 2015 8:35 am

Thank you for your suggestion just finished it .Turns out it was one of the spring mecanisms which secure the top box to the rack and one of the hooks? At the rear of the box that also secure to the rack.looked ok stationery , but following your advice it rattled like a good'un now fixed thank you

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WingAdmin
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Posts: 17046
Joined: Fri Oct 03, 2008 4:16 pm
Location: Strongsville, OH
Motorcycle: 2000 GL1500 SE
1982 GL1100A Aspencade (sold)
1989 PC800 (wife's!)
1998 XV250 Virago (sold)
2007 Aspen Sentry Trailer

Re: top box noise I hope

Postby WingAdmin » Fri Feb 13, 2015 9:16 am

squirrel wrote:Thank you for your suggestion just finished it .Turns out it was one of the spring mecanisms which secure the top box to the rack and one of the hooks? At the rear of the box that also secure to the rack.looked ok stationery , but following your advice it rattled like a good'un now fixed thank you


Good job, glad it worked out for you. Don't forget to take that weight off your rear wheel before you go riding next, or you'll be in for an unpleasant surprise! :lol:

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RBGERSON
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had every year from 75 to 83

Re: top box noise I hope

Postby RBGERSON » Sun Feb 15, 2015 8:03 am

ok, WHO THINKS up this stuff...good tip but how does anyone figure this stuff out in the first place..to find a rattle!!!
HAD LOTS OF GOLDWING 75-83
NOW INTO 1500'S..RIDING A 1998 SE

FAIR WINDS,
RB

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squirrel
Posts: 346
Joined: Thu Jan 31, 2013 10:19 am
Location: portsmouth uk
Motorcycle: 1982 gl1100c (interstate)

Re: top box noise I hope

Postby squirrel » Sun Feb 15, 2015 8:37 am

No idea but it worked a treat saves having a passenger sit backwards with no helmet going down the road :D

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WingAdmin
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Posts: 17046
Joined: Fri Oct 03, 2008 4:16 pm
Location: Strongsville, OH
Motorcycle: 2000 GL1500 SE
1982 GL1100A Aspencade (sold)
1989 PC800 (wife's!)
1998 XV250 Virago (sold)
2007 Aspen Sentry Trailer

Re: top box noise I hope

Postby WingAdmin » Sun Feb 15, 2015 10:28 pm

RBGERSON wrote:ok, WHO THINKS up this stuff...good tip but how does anyone figure this stuff out in the first place..to find a rattle!!!


*I* thought it up! :)

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RBGERSON
Posts: 2612
Joined: Tue Mar 09, 2010 7:57 am
Location: SCOTTSDALE, AZ
Motorcycle: 98 SE GL 1500
had every year from 75 to 83

Re: top box noise I hope

Postby RBGERSON » Mon Feb 16, 2015 8:28 am

You are the Man............


HAD LOTS OF GOLDWING 75-83
NOW INTO 1500'S..RIDING A 1998 SE

FAIR WINDS,
RB


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