Rattling noise from left side of bike towards front


Information and questions on GL1500 Goldwings (1988-2000)
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Kruger64
Posts: 3
Joined: Sun May 31, 2020 11:13 am
Location: United States
Motorcycle: 2000 GL1500SE

Rattling noise from left side of bike towards front

Post by Kruger64 »



I have a 2000 GL1500 SE gold wing and has a lose sounding rattling noise that sounds like coming from left side of bike front side . I changed idler's and timing belts and all is good there rattle seems to stop or quite after throttle is give a little



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CrystalPistol
Posts: 1398
Joined: Wed Mar 10, 2010 9:07 pm
Location: Shenandoah Valley of Virginia
Motorcycle: 1997 GL1500SE/'98 Lehman Trike

Re: Rattling noise from left side of bike towards front

Post by CrystalPistol »

Car wash quarters in left fairing pocket?

Seriously, timing belts too loose will flap at lower speeds, get them too tight and they'll sing.
Make Courtesy your "Code of the Road" …

… & Have a Safe Trip!
:)

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bluthundr31
Posts: 561
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Location: Morgan Hill, CA.
Motorcycle: 1991 GL1500 Interstate (Cinnamon Beige)

Re: Rattling noise from left side of bike towards front

Post by bluthundr31 »

If the rattle was NOT there before the timing belt change, , ,most likely something you did, or didn't do when you reassembled it.

Check that lower cowl nut and radiator "screen" on that left side.
Did you loosen/remove the horn on that side?

Walk back all the steps you made when you reassembled it.

Kruger64
Posts: 3
Joined: Sun May 31, 2020 11:13 am
Location: United States
Motorcycle: 2000 GL1500SE

Re: Rattling noise from left side of bike towards front

Post by Kruger64 »

I should have mentioned that was the reason I decided to change the belt's and idler's because of the rattling noise .. idler's were hardly loose but enough that I really thought that might have been the noise but guess not...I really can't hear it at all whes soon as I s

Kruger64
Posts: 3
Joined: Sun May 31, 2020 11:13 am
Location: United States
Motorcycle: 2000 GL1500SE

Re: Rattling noise from left side of bike towards front

Post by Kruger64 »

Can't hear it while riding just when idling

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CrystalPistol
Posts: 1398
Joined: Wed Mar 10, 2010 9:07 pm
Location: Shenandoah Valley of Virginia
Motorcycle: 1997 GL1500SE/'98 Lehman Trike

Re: Rattling noise from left side of bike towards front

Post by CrystalPistol »

Kruger64 wrote:
Tue Jun 09, 2020 10:18 pm
Can't hear it while riding just when idling
Belts a little loose.

Don't know what you did, but some owners rely on the belt idler tensioner springs to "set" tension, but that's not their purpose nor is it the way Honda says to set tension. If one relies on the springs to set tension, it'll be loose. I've even had guys say the springs should be replaced due to age … :D … but once the bolts are tightened they could be removed and the belt would see no change. The belts really don't operate under tension anyway, they just need all slack out. My Subaru that I changed the timing belt on used a hydraulic tensioner that "adapted" to condition of the belt, stretch, etc to maintain proper tension, but these on a GL don't adjust once the bolts are tightened. The springs really just aid the installer in holding the idlers in position while adjustments are made so belt is kept in the cogs so the timing isn't "suddenly" changed when idler pulley bolts are loosened. To adjust the timing belts properly, follow Honda's directions.
Make Courtesy your "Code of the Road" …

… & Have a Safe Trip!
:)

Solo So Long
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Re: Rattling noise from left side of bike towards front

Post by Solo So Long »

Yeah. What CP said.

Saying "rattle" doesn't really say much. There's a lot of stuff down there that can rattle. A lot of what can rattle will only be resonant at, below or above certain engine or road speeds.

You say that it rattles at idle -- this will help.

1) SET A FAN TO BLOW FROM FRONT TO BACK. The bigger the better. You've going to be sticking your head down near the engine, you want all of the exhaust to be blowing away from you.

2) WITH FAN RUNNING, start engine. Hear the rattle from where you're sitting? Get off the bike and see if you can isolate the sound -- is it in the engine? Is it under the Tupperware? Use a mechanic's stethoscope, and a stethoscope with an extended tube that will get into crevices, until you get it isolated.

3) Once you have isolated the sound, have a helper SLOWLY advance the throttle, a few RPM at a time. Does the sound change?

Your "rattle" could be anything from a piece of letfover farkle banging around to a leaking exhaust or head gasket to a failing timing belt tensioner to a missing fastener in the Tupperware.

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Toogzweire
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Re: Rattling noise from left side of bike towards front

Post by Toogzweire »

I had a 'lost' nut once irritating me...
When later removing the fairing for a job I found it!

T



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