GL1500 on board compressor not pumping air


Information and questions on GL1500 Goldwings (1988-2000)
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spkersh
Posts: 1
Joined: Tue Oct 05, 2010 9:33 pm
Location: Sierra Vista, AZ
Motorcycle: 1986 GL1200 Aspencade SEi / 2000 GL1500 Aspencade SE (25th anniv. ed.)

GL1500 on board compressor not pumping air

Postby spkersh » Sat Nov 13, 2010 3:26 pm



Need suggestions. Went to local Honda shop here in Sierra Vista, AZ, no help. Only offered to order a new air compressor. I have a 2000 GL1500 SE. I follow instructions, put on center stand, turn ignition on, press the button to increase the air to the rear shock, will not increase. Read out shows about 22 lbs and will not go up. It will decrease, unfortunately. When I press the buttons (P check and increase), the switch does engage and the compressor does come on, but will not pump air.

I do not hear any air leaks. everytime I check the pressure, it seems to hold steady at about 22-23 lbs. I took the seat off, looks at though air line is only connected to the right side shock. Switch is on the right side, compressor is on left side, just behind the shock. can see little clear window, appears to be dry, no oil at all. Every compressor I know of requires some sort of oil, or will burn up. Do not see any signs of leaking. Honda shop did not seem to know what I was talking about.

SO,
- where can I add oil? Does anyone know if it takes oil? what kind of oil can I use? can I pull the snap ring where the clear window is and add oil there?
- will go back and check tightness on all the bolts connecting the air hoses, but according to read out, it is not leaking.
- saw how-to link to disassemble and dry out the beads, will try that, but where I am in AZ, very dry, don't think much moisture to stop it up.

Anyone have suggestions?



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WingAdmin
Site Admin
Posts: 17045
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: GL1500 on board compressor not pumping air

Postby WingAdmin » Sun Nov 14, 2010 5:06 pm

I think the first thing I would do is to disconnect the air hoses from the compressor, then run the compressor and see if it is actually producing any pressure (soapy water on the outlet and on your finger, put your finger on the outlet, see if bubbles appear and/or you can feel pressure.

Carl334
Posts: 4
Joined: Wed Jan 20, 2010 7:52 pm
Location: United States
Motorcycle: 1995 GL1500A Aspencade

Re: GL1500 on board compressor not pumping air

Postby Carl334 » Thu Dec 02, 2010 5:35 pm

One of these manuals here has compleate trouble shooting guide for this problem and more.

93Wing
Posts: 9
Joined: Mon Sep 14, 2009 12:17 pm
Location: Montgomery,Texas
Motorcycle: 93 Goldwing Aspencade

Re: GL1500 on board compressor not pumping air

Postby 93Wing » Wed Dec 29, 2010 1:40 pm

Is the bike in neautral? My 93 won't work with the bike in gear (a safety thing).
Check your fuses also, it may just have a bad fuse but don't go putting oil anywhere in there. The site window should be so you can sheck the desecant that is there to pull the water out of the air.

Old Wing Man
Posts: 58
Joined: Thu Oct 30, 2014 7:51 am
Location: Bismarck, Arkansas
Motorcycle: 2000 Goldwing SE

Re: GL1500 on board compressor not pumping air

Postby Old Wing Man » Sun Dec 14, 2014 6:18 pm

Did you verify that the air hose (the one used to air up tires) is not hooked up. I believe I read in the owner's manual that the compressor wont air up the on board shocks if the air hose is attached.

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gordonv
Posts: 168
Joined: Sun Oct 04, 2009 6:39 pm
Location: Richmond BC
Motorcycle: 1988 GL1500
1999 GL1500CF
1982 GL1100A

Re: GL1500 on board compressor not pumping air

Postby gordonv » Sun Dec 14, 2014 9:41 pm

spkersh wrote:Need suggestions. Went to local Honda shop here in Sierra Vista, AZ, no help. Only offered to order a new air compressor. I have a 2000 GL1500 SE. I follow instructions, put on center stand, turn ignition on, press the button to increase the air to the rear shock, will not increase. Read out shows about 22 lbs and will not go up. It will decrease, unfortunately. When I press the buttons (P check and increase), the switch does engage and the compressor does come on, but will not pump air.

Anyone have suggestions?


OK, lets just clarify. The compressor IS working (making noise) but the SHOCK air pressure reading is not going up. It's been a while since I looked at fixing my bike, as nothing was working when I bought my bike. In my case, it was the switches. Took them apart and cleaned the contacts (lost a few also, bought a spare), and all seems well, except how-to work the tire hose.

I believe the switches go through the relays on the LH (?) side to activate the different solenoids. Some or all are the same, I would swap a few and retest.

You're saying you press the increase button, the motor runs, but the display does not increase? I would check the relays and solenoids.

Like mentioned, maybe the tire air hose is connected? If not, I would connect it, and see if that works. Pump is operating, so you have air, just what is happening with it is unknown. It has to be going somewhere, so don't keep it running, or you may end up busting something.

Question to everyone. Can you get a zero pounds of air on your shock pressure display, never tried? If not, I would think the shock is leaking, not the hose.

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spiralout
Posts: 1044
Joined: Sun Feb 17, 2013 6:41 pm
Location: Alabama
Motorcycle: 1975 GL1000 (gone)
1980 GL1100I (with '77 1000 engine)
1996 GL1500 SE

Re: GL1500 on board compressor not pumping air

Postby spiralout » Mon Dec 15, 2014 1:21 am

Old Wing Man wrote:Did you verify that the air hose (the one used to air up tires) is not hooked up. I believe I read in the owner's manual that the compressor wont air up the on board shocks if the air hose is attached.


gordonv wrote:
spkersh wrote:Need suggestions. Went to local Honda shop here in Sierra Vista, AZ, no help. Only offered to order a new air compressor. I have a 2000 GL1500 SE. I follow instructions, put on center stand, turn ignition on, press the button to increase the air to the rear shock, will not increase. Read out shows about 22 lbs and will not go up. It will decrease, unfortunately. When I press the buttons (P check and increase), the switch does engage and the compressor does come on, but will not pump air.

Anyone have suggestions?


OK, lets just clarify. The compressor IS working (making noise) but the SHOCK air pressure reading is not going up. It's been a while since I looked at fixing my bike, as nothing was working when I bought my bike. In my case, it was the switches. Took them apart and cleaned the contacts (lost a few also, bought a spare), and all seems well, except how-to work the tire hose.

I believe the switches go through the relays on the LH (?) side to activate the different solenoids. Some or all are the same, I would swap a few and retest.

You're saying you press the increase button, the motor runs, but the display does not increase? I would check the relays and solenoids.

Like mentioned, maybe the tire air hose is connected? If not, I would connect it, and see if that works. Pump is operating, so you have air, just what is happening with it is unknown. It has to be going somewhere, so don't keep it running, or you may end up busting something.

Question to everyone. Can you get a zero pounds of air on your shock pressure display, never tried? If not, I would think the shock is leaking, not the hose.

OP started this thread 4 years ago. It was his one and only post.

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gordonv
Posts: 168
Joined: Sun Oct 04, 2009 6:39 pm
Location: Richmond BC
Motorcycle: 1988 GL1500
1999 GL1500CF
1982 GL1100A

Re: GL1500 on board compressor not pumping air

Postby gordonv » Mon Dec 15, 2014 8:12 pm

Wow, I didn't look back further than the latest post to see it was 4 years old.

My question still is valid though, anyone know if your air pressure reading display will show zero pounds of air? I'll need to try mine out the next time I play with it.

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silverado6x6
Posts: 185
Joined: Fri Oct 11, 2013 6:29 am
Location: Wasilla, Alaska and Adelaide,South Australia
Motorcycle: 1995 GL1500 Aspencade
And 17 other bikes, 5 more Goldwings, 3 Ventures, 2 Vmax

Re: GL1500 on board compressor not pumping air

Postby silverado6x6 » Tue Dec 16, 2014 3:34 am

gordonv wrote:Wow, I didn't look back further than the latest post to see it was 4 years old.

My question still is valid though, anyone know if your air pressure reading display will show zero pounds of air? I'll need to try mine out the next time I play with it.

It's that time of the year my friend, many of us are stranded at home, on the puter, maybe bored after doing the umpteenth cleaning or maintenance on our bikes, you hop on a forum, anything just to get social.
I wonder if the op still even owns the bike anymore, but look at it this way, hundreds search for info on problems, so your replies are not wasted by any means , and it gives others like me a small laugh, I've done it too.
Founder of Steel Horse Restorations
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virgilmobile
Posts: 7644
Joined: Sun Sep 19, 2010 5:39 pm
Location: Denham Springs,La.
Motorcycle: 1988 GL1500 I
Previously owned
78 GL1000
81 GL1100
82 GL1100 I
83 GL1100 I
83 GL1100 standard
84 GL 1200 I

Re: GL1500 on board compressor not pumping air

Postby virgilmobile » Tue Dec 16, 2014 10:01 am

Don't know if this helps...but my 88 worked ok till just this summer.
From zero,on the centerstand,it would increase the pressure to almost 10 psi.
On the side stand...no increase.
I removed the compressor...complete disassembly..vanes sticking...dirty nasty inside....polished and cleaned everything....a very light spray of lube to get things moving(there is no oil to change)... It now works fine.

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gordonv
Posts: 168
Joined: Sun Oct 04, 2009 6:39 pm
Location: Richmond BC
Motorcycle: 1988 GL1500
1999 GL1500CF
1982 GL1100A

Re: GL1500 on board compressor not pumping air

Postby gordonv » Tue Dec 16, 2014 11:41 pm

So the compressor can come apart for all that, or did you have to force it?

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virgilmobile
Posts: 7644
Joined: Sun Sep 19, 2010 5:39 pm
Location: Denham Springs,La.
Motorcycle: 1988 GL1500 I
Previously owned
78 GL1000
81 GL1100
82 GL1100 I
83 GL1100 I
83 GL1100 standard
84 GL 1200 I

Re: GL1500 on board compressor not pumping air

Postby virgilmobile » Wed Dec 17, 2014 8:14 am

Disassembly was not hard.A few screws.Just getting it off the bike was the hardest.Its burried into the frame behind the left saddle bag,Soooo,off comes a bunch of plastic.
I did start to finish in 4 hours.
Mine would run but had almost no pressure or volume.

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urbanmadness
Posts: 214
Joined: Sat Feb 15, 2014 3:31 pm
Location: Sacramento, California
Motorcycle: 1982 Gl1100A Aspencade *sold
1989 GL1500 Aspencade

Re: GL1500 on board compressor not pumping air

Postby urbanmadness » Fri Jun 12, 2015 8:23 pm

yup, had to do the same thing to my '82. Brain dead simple, just a pain. At least my compressor was under the false tank.

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sunprowl@1
Posts: 29
Joined: Sat Nov 28, 2015 7:30 am
Location: Manteca California
Motorcycle: 1988 GL1500

Re: GL1500 on board compressor not pumping air

Postby sunprowl@1 » Sun Jul 10, 2016 8:08 am

Even though this is a very old post was a wealth of information to help me diag my problem on 1988 G/W a little different but still will be a little knowledge I didn't have.

My problem if I pump the shock to say 30 PSI it will go flat in 30 seconds you watch the loss on the dash drop 1 second at a time.
My bike is a trike so with no air you can see it sit really low on right side I am able to see the way it is running heavy on the right side of the tire also. So with reading this I am able to feel more confident about getting out the squirt bottle of soapy water and finding the leak.

Going back 3 or 4 years on old thread, thank again to all for the help.

another Newbie

sunprowl@1




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