Need help diagnosing a squeal


Information and questions on GL1200 Goldwings (1984-1987)
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billcountryman
Posts: 15
Joined: Sat Jul 28, 2012 9:54 am
Location: Mesa, Arizona
Motorcycle: 1984 GL1200 Interstate

Need help diagnosing a squeal

Postby billcountryman » Mon Dec 17, 2012 5:45 pm



I have recently been restoring a 1984 Honda Goldwing GL 1200. While driving after it warms up a bit I'm hearing what I thought was the fan squealing. I replaced the fan thinking I'd resolved the problem. The squeal still exists. It starts up after driving for a little bit but winds down as I bring the bike to a stop. Under speed it will start again. It's consistant with the rpm's of the engine it seems. I'm wondering if the water pump (although I've no leaks) or if something internal isn't making the sound........any ideas and or suggestions would be welcome. Thks. Bill



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Re: Need help diagnosing a squeal

Postby WingAdmin » Mon Dec 17, 2012 9:21 pm

Get it up to speed where you hear the squeal, then pull the clutch in and let the engine go down to idle, while the bike is still moving at speed. That will identify for sure whether it is engine or wheel/drivetrain related.

billcountryman
Posts: 15
Joined: Sat Jul 28, 2012 9:54 am
Location: Mesa, Arizona
Motorcycle: 1984 GL1200 Interstate

Re: Need help diagnosing a squeal

Postby billcountryman » Mon Dec 17, 2012 10:39 pm

Good idea. I'll try it. Thanks.

bustedwing
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Re: Need help diagnosing a squeal

Postby bustedwing » Wed Dec 19, 2012 10:34 am

Another thing to try is once you get the engine warmed up use a stethascope to pinpoint the noise. If you dont have one you can use a screwdriver; place the sharp end on the area you want to check and place your ear on the other end. A good bearing has a smooth hum sound while a bad one has a rough loud sound. Keep in mind sound travels thru connecting parts so you may have to gauge how loud the sound is until you can nail it down. Also a wooden hammer handle works too. Good luck. Keep us updated.
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billcountryman
Posts: 15
Joined: Sat Jul 28, 2012 9:54 am
Location: Mesa, Arizona
Motorcycle: 1984 GL1200 Interstate

Re: Need help diagnosing a squeal

Postby billcountryman » Wed Dec 19, 2012 12:50 pm

Once again I am humble by this bike. Turns out that my speedometer cable is making the noise. Being deaf is one thing but to be stupid on top of it is exasperating. Thanks for the help.

bustedwing
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Re: Need help diagnosing a squeal

Postby bustedwing » Wed Dec 19, 2012 5:04 pm

Dont feel so bad, that is a problem that is hard to find sometimes. The bad part is it is quiet when you are stopped so how do you find that noise while you are riding down the road? But it does eliminate some things so thru the process of elimination sometimes you can get an idea what might be wrong.
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RoadRogue
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Re: Need help diagnosing a squeal

Postby RoadRogue » Thu Dec 20, 2012 1:23 am

Dont feel bad about it, you are not the first to have this exact problem, some have taken alot longer to find it. You got to love it when finding the problem doesnt cost much to solve. 8-)
Ride safe, Todd
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billcountryman
Posts: 15
Joined: Sat Jul 28, 2012 9:54 am
Location: Mesa, Arizona
Motorcycle: 1984 GL1200 Interstate

Re: Need help diagnosing a squeal

Postby billcountryman » Thu Dec 20, 2012 9:21 am

Thanks.........it's on to bigger and better things.......now I'm going to put re-build kits in the master cylinders for both the clutch and the front brake.......anything I need to watch out for?




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