GL1100 Exhaust 1981


Information and questions on GL1100 Goldwings (1980-1983)
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birkco
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GL1100 Exhaust 1981

Postby birkco » Mon Feb 20, 2012 3:38 pm



Have read old posts on GW baffle/mufflers but would like to get , perhaps, a more detailed description on the inner make up of the exhaust so I am able to renew mine. The right baffle has come loose/ broken. Pictures would be first prize. I am new to this so any help "by the numbers" would be great.



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littlebeaver
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Re: GL1100 Exhaust 1981

Postby littlebeaver » Tue Feb 21, 2012 2:49 am

I want to see the same thing .... :D

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scotterichmond
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Re: GL1100 Exhaust 1981

Postby scotterichmond » Tue Feb 21, 2012 2:00 pm

littlebeaver wrote:I want to see the same thing .... :D


This is what I did .
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scotterichmond
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Re: GL1100 Exhaust 1981

Postby scotterichmond » Tue Feb 21, 2012 2:52 pm

Being the cheap scotsman my dad taught me to be, I made my own baffles. They would have cost $100.00 to buy, assuming I could get the info I needed to be sure they would fit.

I bought Two exhaust pipe reducers from NAPA. part # 41922 ( 1.75" O.D.on large end X 1.50" I.D.on the small end 4" long) perfect fit.
I welded a fender washer on the small end then started drilling 3/16" holes in the end and the sides up to the part of the bell end that gets larger. Drilled a set screw hole , so I could hold it in place through the small drain hole in the bottem of the tail pipe tip.

I then wrapped the smaller end with as much steel wool as would allow it to still fit in the tail pipe. locked it in place with the screw. DONE.

And it is so "Honda" quiet again.

Cost $10.98 for the pipe
Steel wool was free.
2 good short screws $.20
All in all I spent 2 hours.

Sorry I did not have a camera to take pictures. Not a hard job

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littlebeaver
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Re: GL1100 Exhaust 1981

Postby littlebeaver » Tue Feb 21, 2012 3:21 pm

scotterichmond wrote:
littlebeaver wrote:I want to see the same thing .... :D


This is what I did .

That is the coolest thing I ever saw, what a fantastic idea, I wish you could do a how to step by step on this, I think I understand it but, step by step with photo's would be killer. you know from start to finish...and it's quiet again? Yes, that's impressive...

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scotterichmond
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Re: GL1100 Exhaust 1981

Postby scotterichmond » Tue Feb 21, 2012 3:25 pm

Just don't over do it with the steel wool. a balance is in order or you will choke the exhaust down too much and not have high RPM. And a "blahhhhhhhh" with wide open trottle.

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birkco
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Re: GL1100 Exhaust 1981

Postby birkco » Tue Feb 21, 2012 4:12 pm

scotterichmond,

Good job thank you, I assume that you used the reducer pipe so you would have space to wrap steel wool?
Do you know what happens in the main section of the exhaust??
One screw enough to hold it in place?

Thanks will give it a bash!

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scotterichmond
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Re: GL1100 Exhaust 1981

Postby scotterichmond » Tue Feb 21, 2012 5:25 pm

yes on the reducer for room for the steel wool,I have no idea what happens in the other part of the muffler.One screw works just fine.
I did this because the P.O. cut the baffles out .

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Re: GL1100 Exhaust 1981

Postby WingAdmin » Wed Feb 22, 2012 3:21 pm

Keep in mind you're going to want to use STAINLESS steel wool. Exhaust gases have lots of water vapor, and regular steel wool will rust pronto.

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littlebeaver
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Re: GL1100 Exhaust 1981

Postby littlebeaver » Wed Feb 22, 2012 3:50 pm

Are there not baffles to fit this exhaust so you don't have to modify anything? Might be good for folks without a welding machine..

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birkco
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Re: GL1100 Exhaust 1981

Postby birkco » Wed Feb 22, 2012 4:07 pm

Thanks for that , I guess better with S/S pipe as well!

Does anyone have any idea of the make up of the insides of the rest of the exhaust? are they the same principle as car exhausts?

and well done with the site really a treasure trove of info on the GW.




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