how to tell if the fork seals require replacement


Information and questions on GL1100 Goldwings (1980-1983)
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Frank5839
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Joined: Thu May 22, 2014 5:56 am
Location: Livonia New York
Motorcycle: 1981 GL 1100 "naked"

how to tell if the fork seals require replacement

Postby Frank5839 » Sun Mar 06, 2016 5:44 pm



My 1981 GL1100 is showing some signs of leakage of oil on the front forks. BUT. I can jack up the air pressure to 25 psig and it holds. How do I determine if the seals are shot if it is holding this much air pressure?

Thanks



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chrisz
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Triumph Tiger 1050 year 2008

Re: how to tell if the fork seals require replacement

Postby chrisz » Sun Mar 06, 2016 7:38 pm

See if you can clean around the seals with a piece of thin plastic, like a sliver of an old credit card. You may just have a bit of crud at the seal surface that the piece of plastic can dislodge and makes things right again. If this doesn't work, than replace the seals.

Frank5839
Posts: 32
Joined: Thu May 22, 2014 5:56 am
Location: Livonia New York
Motorcycle: 1981 GL 1100 "naked"

Re: how to tell if the fork seals require replacement

Postby Frank5839 » Sun Mar 06, 2016 9:33 pm

Thanks
I'll give that a try

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mytown
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Re: how to tell if the fork seals require replacement

Postby mytown » Mon Mar 07, 2016 2:48 am

Frank5839 wrote:My 1981 GL1100 is showing some signs of leakage of oil on the front forks. BUT. I can jack up the air pressure to 25 psig and it holds. How do I determine if the seals are shot if it is holding this much air pressure?

Thanks

They don't sound "shot" given that you can jack up the pressure and they hold (that sounds like alot of pressure to me, I think the recommended max is 21 lbs). I had success with this tool.
Many say rebuild and that would be best but using this tool has eliminated my fork leaks for the past two years. I think cranking the pressure up to 25 psi could make things worse.

Frank5839
Posts: 32
Joined: Thu May 22, 2014 5:56 am
Location: Livonia New York
Motorcycle: 1981 GL 1100 "naked"

Re: how to tell if the fork seals require replacement

Postby Frank5839 » Mon Mar 07, 2016 7:27 am

Thanks
I only jacked the pressure up for a test.
I leaf it around 10 psig.
I'll try this.

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RBGERSON
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had every year from 75 to 83

Re: how to tell if the fork seals require replacement

Postby RBGERSON » Mon Mar 07, 2016 8:14 am

If you have oil on your forks they are leaking and need to be replaced..clean the forks off then go for a ride then wipe again with a cotton cloth if there is oil they are shot. If you do replace the seals check the bushings too..if copper is showing replace them..might want to replace even if it's not.
HAD LOTS OF GOLDWING 75-83
NOW INTO 1500'S..RIDING A 1998 SE

FAIR WINDS,
RB

Frank5839
Posts: 32
Joined: Thu May 22, 2014 5:56 am
Location: Livonia New York
Motorcycle: 1981 GL 1100 "naked"

Re: how to tell if the fork seals require replacement

Postby Frank5839 » Mon Mar 07, 2016 8:32 am

RBGerson

I have an place inline at the shop for the repair.

I'm going to try the Sealmate repair tool first (mytown). If that fails I already have a place in line.

Better to start with $5 than with $250.

Thanks

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WingAdmin
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Re: how to tell if the fork seals require replacement

Postby WingAdmin » Mon Mar 07, 2016 1:07 pm

If you have some old 35mm film negatives, they work just as well to clean out dirt between the seal and the fork leg. You can cut them in a "scoop" shape like the Seal Mate and use them to pull up and out any grit or dirt.

Frank5839
Posts: 32
Joined: Thu May 22, 2014 5:56 am
Location: Livonia New York
Motorcycle: 1981 GL 1100 "naked"

Re: how to tell if the fork seals require replacement

Postby Frank5839 » Mon Mar 07, 2016 1:57 pm

good idea
you are dating yourself along with my era... 35 mm film.

Thanks

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RBGERSON
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Location: SCOTTSDALE, AZ
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had every year from 75 to 83

Re: how to tell if the fork seals require replacement

Postby RBGERSON » Tue Mar 08, 2016 9:21 am

I have made the sealmate out of milk bottles, soda cans, any thin plastic or metal..works


HAD LOTS OF GOLDWING 75-83
NOW INTO 1500'S..RIDING A 1998 SE

FAIR WINDS,
RB


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