1989 1500 Forks Leaking


Information and questions on GL1500 Goldwings (1988-2000)
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wing maniac
Posts: 11
Joined: Sun Sep 06, 2009 3:54 pm
Location: Dearborn Heights MI
Motorcycle: 1989 Wineberry 1500
2009 Street Glide

1989 1500 Forks Leaking

Postby wing maniac » Sat Jan 08, 2011 2:49 pm



I went through my bike prior to riding it (2010) changed all the fluids so I wouldn't have to worry about it (we were riding to DC for Rolling Thunder) everything seemed fine on the short jaunts we took leading up to the bigday. At one of the fuel stops on the way to DC my friend Ken noticed some dark fluid on one of my rotor covers as we searched to see where it was coming from I noticed the fork seals were starting to leak. The seals were replaced 4 years ago and I used Honda fork oil at that time. I have had Progressive Springs in the forks since 1994. At this last change I used AMSOIL SYNTHETIC UNIVERSAL TRANS FLUID) Is this the reason or are the seals just old. The bike was bought new in 91 (original owner) and has 52000 miles on it (after DC trip) I am going to go through it agin I just want to know if I need to change anything I did.



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dingdong
Posts: 2864
Joined: Thu Apr 08, 2010 8:35 am
Location: Oklahoma City
Motorcycle: 1976 gl1000
1993 gl1500
2004 NRX1800 Rune

Re: 1989 1500 Forks Leaking

Postby dingdong » Tue Jan 11, 2011 9:14 am

If the seals started leaking suddenly and are leaking that much I would say yes that is probably the problem. Even when "changing" over to synthetic engine oil in an older engine sometimes the seals will start to leak. I would replace it with at least a 10 weight fork oil. ATF comes in many weights and usually isn't labeled as to what the weight is. Some are even multi-viscosity just like engine oil. Worth a try!
Tom

A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed.

wing maniac
Posts: 11
Joined: Sun Sep 06, 2009 3:54 pm
Location: Dearborn Heights MI
Motorcycle: 1989 Wineberry 1500
2009 Street Glide

Re: 1989 1500 Forks Leaking

Postby wing maniac » Tue Jan 11, 2011 10:17 am

Thanks for the reply. Just to make sure I get you do I just change out the oil or replace the seals and then replace the oil?

User avatar
dingdong
Posts: 2864
Joined: Thu Apr 08, 2010 8:35 am
Location: Oklahoma City
Motorcycle: 1976 gl1000
1993 gl1500
2004 NRX1800 Rune

Re: 1989 1500 Forks Leaking

Postby dingdong » Wed Jan 12, 2011 11:01 am

You may not need new seals. First replace with new fork oil. Could solve the problem. If not then replace the seals.
Tom

A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed.

wing maniac
Posts: 11
Joined: Sun Sep 06, 2009 3:54 pm
Location: Dearborn Heights MI
Motorcycle: 1989 Wineberry 1500
2009 Street Glide

Re: 1989 1500 Forks Leaking

Postby wing maniac » Thu Jan 13, 2011 12:46 pm

Thanks I'll try that. I really didn't want to tear it down

Mc-Trollet
Posts: 1
Joined: Sun Jan 16, 2011 12:41 am
Location: honefoss, Norway
Motorcycle: Honda CB350 F, -76
Honda VF 750F, - 81
Honda CBX 1000, 81
Honda GL 1500 Aspencade, 1994

Re: 1989 1500 Forks Leaking

Postby Mc-Trollet » Wed Feb 02, 2011 1:04 am

Hi "Wing maniac"
I had the same problem my self. I have four bikes, and I have changed the sealing on three of them. But before I went to the step of change them, I did this:
I drained out the oil existing fork oil. Then I refilled with W10-30 mineral motor oil. Motor oil has mush better sealing skills than hydraulic oil, which “fork oil” actually is. It will NOT harm anything inside you fork. The front fork will actually be a bit stiffer and the bike will feels more stable.

When you decide to change the sealing, I would recommend you to change the bushings as well. There is one bushing inside the top of the outer leg, and one in bottom of the inner leg. Your bike has some miles on the road, and this usually does miracles to the bikes performing. Well maybe not miracle, but you can definitive feel the difference.
If you come to that decision, and want to do the job your self, or part of the job, come back to me, and I will describe in detail how to do it.

I have done this to my bikes and previous bikes.
81 – CBX 1000 Pro Link. (Still have it)
86 – Gold wing Sei Asp. (Sold)
94 – Gold Wing Asp. (Still have it)

I also have a 81 - VF 750 Sport, and a 74 – CB 350 Four, but they are in for restoration.

Hope this has help, and excuse me for my bad English, because it is not my native tong.

Wish you all the best.
Knut




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