Rear shocks on '80 interstate


Information and questions on GL1100 Goldwings (1980-1983)
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toyfan1
Posts: 15
Joined: Fri May 15, 2015 8:46 pm
Location: St. Louis, MO.
Motorcycle: 1980 GL1100 Interstate
2009 Kawasaki 650R

Rear shocks on '80 interstate

Postby toyfan1 » Mon Oct 05, 2015 9:04 pm



i am at the point of installing my brand new old stock Honda rear shocks.problem is they will not expand! am i missing something? i removed from box, hooked up the air lines, hung from the top studs and nothing. i pump up the air lines and nothing happend. They do have fluid in them and i tried manually trying to expand them and no luck. i took to work and tried 105 PSI shop air and still nothing aside from blasting some of the oil all over the place. i tried the forum search and didnt find answers. did i miss a step? i even tried twisting the lower section 360 maybe they were locked closed and expand but not that either. The shocks look brand new and prob in storage over 15 years.



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Wilcoy02
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Location: Marengo, Ohio
Motorcycle: 1983 GL1100 I purchased 3/16

1983 GL1100I frame with an 80 engine. poor boy installed with C-5 ignition--DIED in Grande Prairie Alberta Canada 8/15


98 valkyrie sold 8/16

Re: Rear shocks on '80 interstate

Postby Wilcoy02 » Mon Oct 05, 2015 10:01 pm

Check this out. It will show you what is in the shocks. And why not to use compressed air as it will shoot all the guts out.

viewtopic.php?f=11&t=27146&p=155324#p155324

4wred
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Re: Rear shocks on '80 interstate

Postby 4wred » Tue Oct 06, 2015 7:50 am

If they were in good shape when you got them, probably not now.Putting that much air to them probably blew the seals.You are now looking at a rebuild for sure!!

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WingAdmin
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Re: Rear shocks on '80 interstate

Postby WingAdmin » Tue Oct 06, 2015 9:18 am

The shocks aren't supposed to expand when you add air. Air just helps set the preload on the shocks, to prevent them from sagging when weight is added to the bike. The shocks have springs inside them, so they will already be fully expanded when not on the bike.

105 psi is far too high a pressure to put into these shocks. By blowing air at that pressure into them, you have no doubt blown the seals out of them, which is why oil sprayed everywhere. The shocks will now need to be disassembled and rebuilt with new seals.

toyfan1
Posts: 15
Joined: Fri May 15, 2015 8:46 pm
Location: St. Louis, MO.
Motorcycle: 1980 GL1100 Interstate
2009 Kawasaki 650R

Re: Rear shocks on '80 interstate

Postby toyfan1 » Tue Oct 06, 2015 7:10 pm

ok, i was kind of thinking that they might already be expanded out of the box hours after i made this post. all the oil shot out of the air line fitting hole. it doesnt seem to hold a lot of air, when i was using my bike pump i only had like 2-3 pumps before it got super stiff.




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