Front engine noise on acceleration


Information and questions on GL1500 Goldwings (1988-2000)
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kneabling
Posts: 8
Joined: Sat May 16, 2015 9:14 pm
Location: tacoma,wa
Motorcycle: 1994 GL1500 SE

Front engine noise on acceleration

Postby kneabling » Mon Apr 18, 2016 10:50 pm



Hopefully someone can give me some help. I've noticed that on acceleration quick or slow there is a growling noise from the front of the engine. It's not a wheel bearing, it is actually coming from the engine. Only under load and it is noisiest at about 2000-2500 rpm. Bike has 56,000 on it. If I pull in the clutch to coast the noise goes away. Once at highway speed or speed in general it seems to disappear until I get on the throttle again. Could it be a noisy water pump or a bearing in the clutch. It just started about 2 months ago and is very worrisome to me. I seriously baby this bike so can anyone help : :



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Aussie81Interstate
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Location: Penrith Australia
Motorcycle: 1982 CX500 Turbo (restoration project)
1981 GL1100 Interstate (sold)
1988 GL1500

Re: Front engine noise on acceleration

Postby Aussie81Interstate » Tue Apr 19, 2016 3:09 am

Idler pulley?

When did you change the belts?

kneabling
Posts: 8
Joined: Sat May 16, 2015 9:14 pm
Location: tacoma,wa
Motorcycle: 1994 GL1500 SE

Re: Front engine noise on acceleration

Postby kneabling » Tue Apr 19, 2016 9:43 am

I haven't changed the belts yet. Thought it was a little premature. Read another post similiar and started thinking along that line. Question about changing them....I'm pretty mechanically inclined, seems like something that a shade tree mechanic should be able to do. Is that the case and any tips beyond the step by step that I've seen online?

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Dusty Boots
Posts: 573
Joined: Mon Oct 26, 2009 4:25 pm
Location: Alvinston, SW ON
Motorcycle: 1992 GL1500Aspencade

Re: Front engine noise on acceleration

Postby Dusty Boots » Tue Apr 19, 2016 11:34 am

Are you positive it's up front and not down around your left ankle? (alternator dampers)


Dusty

revtmuller1
Posts: 74
Joined: Tue Apr 20, 2010 7:58 pm
Location: Stronghurst, IL
Motorcycle: 1999 GL 1500 SE

Re: Front engine noise on acceleration

Postby revtmuller1 » Tue Apr 19, 2016 11:45 am

+1 on what Dusty asked.

kneabling
Posts: 8
Joined: Sat May 16, 2015 9:14 pm
Location: tacoma,wa
Motorcycle: 1994 GL1500 SE

Re: Front engine noise on acceleration

Postby kneabling » Tue Apr 19, 2016 3:04 pm

I sound like its coming from the front. When I listen while accelerating by the column tunnel it definetly sounds like its coming from the front.

revtmuller1
Posts: 74
Joined: Tue Apr 20, 2010 7:58 pm
Location: Stronghurst, IL
Motorcycle: 1999 GL 1500 SE

Re: Front engine noise on acceleration

Postby revtmuller1 » Tue Apr 19, 2016 3:18 pm

I understand what you're saying but when the same kind of noise occurred on my '99 it turned out to be the dampers by the alternator. I hope you find the source of your noise.

kneabling
Posts: 8
Joined: Sat May 16, 2015 9:14 pm
Location: tacoma,wa
Motorcycle: 1994 GL1500 SE

Re: Front engine noise on acceleration

Postby kneabling » Tue Apr 19, 2016 4:24 pm

So what are the altenator dampers? If this doesn't fix the problem I will need to start looking wlsewhere.

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Dusty Boots
Posts: 573
Joined: Mon Oct 26, 2009 4:25 pm
Location: Alvinston, SW ON
Motorcycle: 1992 GL1500Aspencade

Re: Front engine noise on acceleration

Postby Dusty Boots » Tue Apr 19, 2016 6:01 pm

They are a set of 4 rubber dampeners that fit ahead of the alternator.
They tend to get hard/brittle with age and then start making a growling noise.
It's about a 30 - 45 minute job to pull your alternator and replace the dampeners. (Not sure if Scott has a tutorial for that on here, or not?)

Just be mindful how the old ones are positioned when you remove them, so you can install the new ones the same way.


Dusty

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Bluewaterhooker0
Posts: 556
Joined: Wed Nov 14, 2012 11:27 pm
Location: Tampa, Fl
Motorcycle: 1997 Goldwing GL 1500 SE

Re: Front engine noise on acceleration

Postby Bluewaterhooker0 » Tue Apr 19, 2016 9:16 pm

I'm with Dusty on this one. Mine does something similar, and I've read of others with the same noise. Mine became an issue after changing the alternator to a high amp version. I replaced the dampeners at the same time, but it appears to be peculiar to the higher amp alternators on many bikes. One guy reduced the noise by pulling the alternator and rotating the impeller 90 degrees, then reinstalling. Can't say why that would effect anything, but he says it did. Another noise I experienced was after changing my air filter. There is a hose connected to the underside of the lower filter box that is hard to see or access. About a half inch to 3/4" diameter, I think. Mine came off, and it made a similar noise until I figured out the source of the noise. Reattached the hose with some difficulty, and that noise subsided.

kneabling
Posts: 8
Joined: Sat May 16, 2015 9:14 pm
Location: tacoma,wa
Motorcycle: 1994 GL1500 SE

Re: Front engine noise on acceleration

Postby kneabling » Tue Apr 26, 2016 7:31 pm

I really want to thank everyone for the info. It helped ....it was the dampeners I would have staked my life on belts or tensioner pulley. On that note I did change the belts and tensioner pulleys. I'm very glad I did for the fact that one had twice the slack in it as it should have. It actually was pretty easy. One or two of the forums out the say to pullthe plugs but I recommend you leave them in for the simple fact it keeps cams from turning out of place easily. Just something I noticed when doing mine. It took about 2 hours complete. Thanks again for all the knowledge out there.

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cbx4evr
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Location: Edmonton, AB Canada
Motorcycle: 2000 GL1500SE
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1981 Honda CBX - sold :-(
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Re: Front engine noise on acceleration

Postby cbx4evr » Tue Apr 26, 2016 9:37 pm

Good thing on the belt change. You may have only 56,000 miles but the belts were 22 years old.


"It´s a friggen motorcycle, it´s not supposed to be comfortable, quiet or safe. The wind noise is supposed to hurt your ears, the seat should be hard and riding it should make you s**t your pants every now and then. "


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