air shock


Information and questions on GL1500 Goldwings (1988-2000)
  • Sponsored Links
User avatar
greg sherman
Posts: 8
Joined: Mon Jul 23, 2012 12:53 pm
Location: Brentwood CA
Motorcycle: 1991 GL1500 Interstate

air shock

Postby greg sherman » Mon Jul 23, 2012 12:57 pm



My rear air shock suddenly lost air on a ride yesterday. Tried to pump it up to 40 psi but did not hold. I see no oil dripping anywhere. Also rear tire is flat this morning. ????



User avatar
robb
Posts: 1040
Joined: Mon Jul 19, 2010 7:46 pm
Location: Lexington, North Carolina
Motorcycle: 1989 Honda GL1500 Aspencade

Re: air shock

Postby robb » Mon Jul 23, 2012 3:16 pm

Sounds like the shock is trash, but I doubt it had anything to do with a flat tire.

User avatar
greg sherman
Posts: 8
Joined: Mon Jul 23, 2012 12:53 pm
Location: Brentwood CA
Motorcycle: 1991 GL1500 Interstate

Re: air shock

Postby greg sherman » Mon Jul 23, 2012 3:28 pm

I am hoping it's the air lines leading to the shock. That may be an easier fix.
Whats the typical fix for the flat? Patch from the inside or a plug from the outside. I have not located the source of the leak yet.

User avatar
robb
Posts: 1040
Joined: Mon Jul 19, 2010 7:46 pm
Location: Lexington, North Carolina
Motorcycle: 1989 Honda GL1500 Aspencade

Re: air shock

Postby robb » Mon Jul 23, 2012 10:05 pm

I carry a standard cord repair kit and have got over 10k with it in rear. If you seen oil leaking it is most likely a bad shock. It could have been condensation in the tubes in which case it's an easy fix. Any chance the tire was low and not noticed until shock problem.

User avatar
greg sherman
Posts: 8
Joined: Mon Jul 23, 2012 12:53 pm
Location: Brentwood CA
Motorcycle: 1991 GL1500 Interstate

Re: air shock

Postby greg sherman » Tue Jul 24, 2012 9:15 am

Here is what I know so far. I found a nail in the rear tire. The sudden change in handling may have been caused by the initial puncture and then sealed up albeit very low pressure. Mushy ride home. (The next morning the tire was completely flat.) I put about 35 psi in the rear shocks last night and checked this am about 35psi. The actual volume of air in the air shock system is not very much. Just putting the gauge on and off changes the reading from one time to the next. My thought is that the tire may be the only problem.
Question -It's a brand new tire- do you plug or have it taken apart and patched?

User avatar
TennX
Posts: 139
Joined: Thu May 31, 2012 7:00 am
Location: Memphis, Tn.
Motorcycle: 97 GL 1500 Aspencade
06 VTX 1300R

Re: air shock

Postby TennX » Tue Jul 24, 2012 9:18 am

I run plugs all the time on my VTX 1300 and will if needed on the 1500..having said this...if you can plug/patch it...if not just plug and play....good luck
Phil.......

User avatar
robb
Posts: 1040
Joined: Mon Jul 19, 2010 7:46 pm
Location: Lexington, North Carolina
Motorcycle: 1989 Honda GL1500 Aspencade

Re: air shock

Postby robb » Tue Jul 24, 2012 9:28 am

A new tire and with all that is involved in removal, I'd plug it without hesitation.

User avatar
greg sherman
Posts: 8
Joined: Mon Jul 23, 2012 12:53 pm
Location: Brentwood CA
Motorcycle: 1991 GL1500 Interstate

Re: air shock

Postby greg sherman » Tue Jul 24, 2012 9:46 am

Thanks guys. I believe I will plug then monitor the shock pressure on the next several rides.

User avatar
greg sherman
Posts: 8
Joined: Mon Jul 23, 2012 12:53 pm
Location: Brentwood CA
Motorcycle: 1991 GL1500 Interstate

Re: air shock

Postby greg sherman » Mon Jul 30, 2012 10:33 am

Ok found the source of the problem. The valve stem has a rip in it where it joins the wheel. Holds tire pressure until I tilt it back, then releases air. Not sure- but when changing out tires does the shop usually change the valve stem? What's standard practice? Tires were purchased two years ago. The nail in the tire is not the source of the leak. It's in to the contact patch but has not breached the tire.

User avatar
MikeB
Posts: 1228
Joined: Fri Dec 04, 2009 12:54 pm
Location: Tacoma, WA
Motorcycle: 1998 - GL1500 Aspencade.
2003 - GL1800A

Re: air shock

Postby MikeB » Mon Jul 30, 2012 10:06 pm

Valve stems are not routinely replaced by the tire installer unless you specify you want them replaced. They will gladly replace them for you for a fee. The stems should be replaced frequently if they are the standard rubber and metal stem. The rubber flexes and with time cracks and wears out. I prefer the all metal stems but even they should replaced once in a while. Or at least replace the rubber seals that are against the wheels. But, the price of the complete stems are reasonable enough that just replacing the entire item is the way to go. Besides, finding just the seals might be hard to do.

In other words, I would recommend replacing the OEM style stems at least every other time you replace the tires. But, how often you have it done is up to you.
MikeB
Tacoma, WA, USA

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: air shock

Postby WingAdmin » Tue Aug 21, 2012 12:24 pm

Valve stems are cheap - no more than a few dollars. A valve stem failure can be catastrophic. I change mine every time I change a tire - but then, I'm doing it myself. :)




Return to “GL1500 Information & Questions”




Who is online

Users browsing this forum: No registered users and 6 guests