Squealing noise from front of engine


Information and questions on GL1200 Goldwings (1984-1987)
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Twag
Posts: 5
Joined: Wed Jun 16, 2021 7:02 pm
Location: Halifax, Nova Scotia, Canada
Motorcycle: 1986 1200 Aspencade

Squealing noise from front of engine

Post by Twag »



I purchased a 1986 1200 aspencade. It didn't run when I got it. Cleaned the carburetors and gas tank. New fuel filter. Had to replace the pulse generators and one ignition coil was bad. Also installed new timing belts. Started up and seems to run good ( still have to tune the carburetors). But when I was on a test drive the engine had a squeal at idle after it warmed up. I don't know what the noise could be. Does anyone have any ideas as to what the noise could be. Thanks.



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User avatar
Ohara
Posts: 114
Joined: Mon Nov 16, 2015 9:05 am
Location: Ontario Canada
Motorcycle: 1986 Interstate
1986 Aspencade

Re: Squealing noise from front of engine

Post by Ohara »

If it wasn’t squealing before, your belts could be too tight. Once it is warmed up again and makes this noise, feel the timing belt covers they should not be hot. Good luck with this.
User avatar
julimike54
Posts: 611
Joined: Sun Feb 01, 2015 12:21 pm
Location: Euless, Texas
Motorcycle: 1986 GL1200A original owner
2016 HD FLTRU

Re: Squealing noise from front of engine

Post by julimike54 »

Timing belt idler(s). Try running it more, mine got quieter after about 200 miles. The other way is to replace them.
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Mike
Twag
Posts: 5
Joined: Wed Jun 16, 2021 7:02 pm
Location: Halifax, Nova Scotia, Canada
Motorcycle: 1986 1200 Aspencade

Re: Squealing noise from front of engine

Post by Twag »

Hi everyone, thanks for the replies. I did check the tension of the belts and they were probably a little tight so I loosened the tension a bit. I put the bike to top dead center with the T1 mark and set the tension to about 3/16". The manual said 1/8" to 3/16". It actually stated in the manual that if the belts were too tight the belts would whine. I started the bike and it was quiet, but the bike was cold. The noise didn't happen yesterday unit after a short test drive and the bike warmed up. I think I will change the the tensioner pully's this winter as well. They are the originals. I see a couple of DIY threads on changing the tensioners.
User avatar
DiscoLew
Posts: 2
Joined: Tue Jun 01, 2021 3:44 pm
Location: South Wales, UK
Motorcycle: 1987 GL1200 Interstate

Re: Squealing noise from front of engine

Post by DiscoLew »

I’ve just had exactly the same issue with mine. Slacked the RH belt tension from 3mm to 4mm - problem solved! Good luck with yours.


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