Rear air suspension


Information and questions on GL1100 Goldwings (1980-1983)
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zvacman
Posts: 102
Joined: Mon May 24, 2010 2:40 pm
Location: Petoskey, MI
Motorcycle: 1982 GL1100 Interstate

Rear air suspension

Postby zvacman » Wed Jun 30, 2010 9:10 am



First let me say that I didn't ride this bike (82 Gl1100i) really at all when I took it to my shop to give it an overhaul. I rebuilt the carbs, changed the fuel tank, replaced the tires and all hoses, fluids and grease. I have her on the road and running great. The only problem that I have now is that the rear suspension air light is on. Here's where it gets wierd it goes off when I am stopped or only under mild acceleration. When I went to check the air pressure in them a little oil came out of the valve. I am guessing I have some sort of seal in the shocks blown. Am I right? Are they rebuildable? If I change to the progressives I keep hearing about are those air as well? Any help would be, as always, appreciated. By the way I'm not bottoming out and it doesn't ride bad can this issue wait until winter?

Thanks, Z



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WingAdmin
Site Admin
Posts: 17050
Joined: Fri Oct 03, 2008 4:16 pm
Location: Strongsville, OH
Motorcycle: 2000 GL1500 SE
1982 GL1100A Aspencade (sold)
1989 PC800 (wife's!)
1998 XV250 Virago (sold)
2007 Aspen Sentry Trailer

Re: Rear air suspension

Postby WingAdmin » Wed Jun 30, 2010 10:36 am

I put Progressives on mine: How to remove and replace your rear shocks and yes, they are air shocks as well. There was a bit of oil in the air lines when I removed them - likely from years of a little bit of oil being splashed near the air port in the shock, followed by shock compression, a tiny drop here and there getting pushed into the air line, and draining down to the splitter where the pressure switch is. It did not affect the function of the shocks or the pressure switch. The shocks are not sealed in that if you take one off and turn it over, the oil will drain out the air port. If the shock is blown, you'll see oil leaking down the outside of it and coating the boot:

Image

The shocks can be rebuilt, and rebuild kits are available.

zvacman
Posts: 102
Joined: Mon May 24, 2010 2:40 pm
Location: Petoskey, MI
Motorcycle: 1982 GL1100 Interstate

Re: Rear air suspension

Postby zvacman » Wed Jun 30, 2010 10:54 am

My shocks were clean when I had them off, almost new looking to be honest. I wonder where I am losing air pressure?

Z

User avatar
WingAdmin
Site Admin
Posts: 17050
Joined: Fri Oct 03, 2008 4:16 pm
Location: Strongsville, OH
Motorcycle: 2000 GL1500 SE
1982 GL1100A Aspencade (sold)
1989 PC800 (wife's!)
1998 XV250 Virago (sold)
2007 Aspen Sentry Trailer

Re: Rear air suspension

Postby WingAdmin » Wed Jun 30, 2010 11:06 am

It could bit a fitting. Try spraying soapy water on all of the hoses and fittings for the shocks, pressurize them, and see if you can identify bubbles anywhere.




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