Exhaust too noisy


Information and questions on GL1000 Goldwings (1975-1979)
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grandpa
Posts: 73
Joined: Sat Aug 07, 2010 3:23 pm
Location: Denmark
Motorcycle: 1978 GL1000 Interstate

Exhaust too noisy

Postby grandpa » Sun Sep 04, 2011 1:57 pm



Hi.

When I am driving my GL1000 / 78 it is more noisy than other Gold Wing. I have read in Haynes Work Shop manual that 1978-1979 US model has an modified exhaust system. Padge 157 bottom left. It is more like a Harly, and that is the last I want it to sound like.

Does someone out there have a good idea so I can make it sound more like a Gold Wing.



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Fred Camper
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Location: Metro Detroit, MI
Motorcycle: 1977 GL1000, 1976 LTD GL1000

Re: Exhaust too noisy

Postby Fred Camper » Sun Sep 04, 2011 3:37 pm

Could be the crushing washers under the cylinder head exhaust ports. If they are over crushed or not present, then it would get more harley like. Could also be the joint between the headers and the mufflers, as even a very small leak there is a significant noise increase source.

The gaskets at the headers are easy to change, they are Felpro 605670 and also fit a 91-95 Nissan 4 cylinders or
a 76-84 Honda 1.3, 1.4, 1.5, 1.6 or 1.8 liter engine.

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grandpa
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Joined: Sat Aug 07, 2010 3:23 pm
Location: Denmark
Motorcycle: 1978 GL1000 Interstate

Re: Exhaust too noisy

Postby grandpa » Sun Sep 04, 2011 5:24 pm

Hi
Sorry, but I am not familiar with the word: crushing washers. Is it the same as Spring Washer.

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Fred Camper
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Motorcycle: 1977 GL1000, 1976 LTD GL1000

Re: Exhaust too noisy

Postby Fred Camper » Sun Sep 04, 2011 8:43 pm

No, they are tubular washers that crush to just the right thickness when you torque down the headers. But over time they can over crush and no longer seal.

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grandpa
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Motorcycle: 1978 GL1000 Interstate

Re: Exhaust too noisy

Postby grandpa » Mon Sep 05, 2011 6:15 am

Hi Fred.
I am with. I know that kind of washer but dit'n know the name. Is Crushing washer the correct name or is it a nickname.

Nex weekend when I am back home I will try to see if there is a leak. I will try with soapwater and se if it blowes bubbles.

Thanks for the quick an good information.

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Fred Camper
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Motorcycle: 1977 GL1000, 1976 LTD GL1000

Re: Exhaust too noisy

Postby Fred Camper » Mon Sep 05, 2011 9:34 am

I think it is a nickname, it may be called an exhaust gasket but I do not like to use the word gasket as I always think paper or flat stock when I see that word. Good thought on the soap solution, you should be able to see bubbles if that is the issue.

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dingdong
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Motorcycle: 1976 gl1000
1993 gl1500
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Re: Exhaust too noisy

Postby dingdong » Wed Sep 07, 2011 9:33 am

The term is "crush" washer. It is any washer that is soft and designed to flatten when torqued down.


Tom

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