Leaking Left Fork Seal


Information and questions on GL1800 Goldwings (2001-Present)
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Muleskinner
Posts: 15
Joined: Sat Apr 24, 2010 10:53 am
Location: Hot Springs Village, AR
Motorcycle: 2006 Goldwing Trike

Leaking Left Fork Seal

Postby Muleskinner » Tue Aug 10, 2010 2:51 pm



I had a pretty bad leak on my left fork seal, leaking to the point of minor dripping on the garage floor. About 3 weeks ago I had a trike mechanic change both seals, putting in new 10 weight oil. I didn't bother in checking the fork for about a week, but when I did I noticed that the left one was still leaking, though now just to the point of a crud ring of oil just above the tube guard. Today I rode the bike (an 06 1800, with a Hannigan trike kit, back to the mechanic, who is the same on who put on the kit. We pulled off the tube and re-checked it very carefully for pitting, or any other problem. Finding none, we figured we had just gotten a bad seal and again changed out the left seal and put in fresh 10 weight oil. I just arrived back home after riding the trike 120 miles from the shop and again have found a slight ring of sludge in the same area. If the tube feels and looks fine, what else could be causing the leaking? Any ideas out there??? :?:



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MJSantos
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1983 GL1100 Custom
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Re: Leaking Left Fork Seal

Postby MJSantos » Tue Aug 10, 2010 6:06 pm

Were the bushings replaced? It could be a worn bushing allowing the lower to wobble.

Muleskinner
Posts: 15
Joined: Sat Apr 24, 2010 10:53 am
Location: Hot Springs Village, AR
Motorcycle: 2006 Goldwing Trike

Re: Leaking Left Fork Seal

Postby Muleskinner » Tue Aug 10, 2010 6:28 pm

No, but the front is solid and handles great. Wouldn't I feel the wobble?

Muleskinner
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Joined: Sat Apr 24, 2010 10:53 am
Location: Hot Springs Village, AR
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Re: Leaking Left Fork Seal

Postby Muleskinner » Tue Aug 10, 2010 6:38 pm

MJSantos wrote:Were the bushings replaced? It could be a worn bushing allowing the lower to wobble.

You are talking about the guide bushing, just below the backup ring and seal?

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MJSantos
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1983 GL1100 Custom
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Re: Leaking Left Fork Seal

Postby MJSantos » Tue Aug 10, 2010 7:15 pm

There's two bushings, one is in the lower just below the seal and the second is on the upper at the bottom. I found out when rebuilding my forks (On the Bike) that one on the upper can easily nick the seal if you try and pass the seal dry over it. I removed it, slid the dust cover, c clip and seal up the shaft then installed the bushing. Then I installed the bushing in the lower seated it then seated the new seal by itself. Kept everything moist with ATF. Following the manual and their procedure I could see where that seal could take a beating. Everything can look good but of there's just a little wobble it could still leak. Another possibility is the new seal is defective. There have been posting s about aftermaket seals not working.

Muleskinner
Posts: 15
Joined: Sat Apr 24, 2010 10:53 am
Location: Hot Springs Village, AR
Motorcycle: 2006 Goldwing Trike

Re: Leaking Left Fork Seal

Postby Muleskinner » Tue Aug 10, 2010 7:28 pm

thanks MJ. I'll shoot this on to my mechanic to see what he thinks and to find out where he is getting his seals.

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MJSantos
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Re: Leaking Left Fork Seal

Postby MJSantos » Tue Aug 10, 2010 7:30 pm

I bought mine from PartsnMore and so far so good.

Muleskinner
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Location: Hot Springs Village, AR
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Re: Leaking Left Fork Seal

Postby Muleskinner » Tue Aug 10, 2010 7:59 pm

I'll have to wait till tomorrow to find out where he is getting his seals, but I'm leaning toward some other source of the problem as the new right seal held fine. What are the odds of grabbing 3 seals and getting 2 bad ones? I was trying to remember watching him put the tube together the first time (I didn't watch as close this time) and I'm pretty sure he did it as you suggested, sliding everything up, rather than pushing a seal over a bushing, but I'll check with him.

Grover
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Location: Ed, AB
Motorcycle: 2006 Gl1800a

Re: Leaking Left Fork Seal

Postby Grover » Mon Sep 06, 2010 1:30 am

Be aware that there is a new part number for the seal kit starting in 06. It has an additional washer type ring and packing ring.

01 winger
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Location: cedar bluff va.
Motorcycle: 1996 gl1500se

Re: Leaking Left Fork Seal

Postby 01 winger » Sat Sep 25, 2010 8:39 pm

My left seal started leaking i rebuilt both with new bushings and the allball bearing seals they are double lipped and disabled the anti-dive valve and i also put in new progressive springs.5000 miles no leaks and rides a lot better.

Muleskinner
Posts: 15
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Location: Hot Springs Village, AR
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Re: Leaking Left Fork Seal

Postby Muleskinner » Sun Oct 03, 2010 8:54 am

01 winger wrote:My left seal started leaking i rebuilt both with new bushings and the allball bearing seals they are double lipped and disabled the anti-dive valve and i also put in new progressive springs.5000 miles no leaks and rides a lot better.

How did you disable the anti-dive and do you now see any problems with the front end when braking?

01 winger
Posts: 11
Joined: Fri Oct 02, 2009 8:21 pm
Location: cedar bluff va.
Motorcycle: 1996 gl1500se

Re: Leaking Left Fork Seal

Postby 01 winger » Sun Oct 03, 2010 10:02 am

I DRILLED A HOLE THROUGH THE MIDDLE OF THE NICKEL 7/32 DRILL BIT TAKE THE TWO SCREWS LOOSE ON THE VALVE PLACE THE NICLEL IN AND REPLACE THE SCREWS.A LOT OF PEOPLE ONLY DO THIS IF YOU PUT IN NEW SPRINGS.I DIDN'T TRY IT UNTIL I REPLACED SPRINGS.BUT IT RIDES A LOT SMOOTHER.NO PROBLEMS WITH BRAKING JUST GIVE IT A TRY IF YOU DON'T LIKE IT JUST TAKE THE NICKEL OUT.THATS ON MY 1800 NOT A 1500.

Muleskinner
Posts: 15
Joined: Sat Apr 24, 2010 10:53 am
Location: Hot Springs Village, AR
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Re: Leaking Left Fork Seal

Postby Muleskinner » Sun Oct 03, 2010 11:26 am

Thanks, I'll try that when I put in the Progressive springs. :D

01 winger
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Re: Leaking Left Fork Seal

Postby 01 winger » Sun Oct 03, 2010 1:10 pm

Muleskinner wrote:Thanks, I'll try that when I put in the Progressive springs. :D
LET ME KNOW HOW IT RIDES.

Grover
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Re: Leaking Left Fork Seal

Postby Grover » Tue Oct 19, 2010 3:15 pm

I recently replaced my leaking left fork seal again.
Also, replaced the fork springs with Progressive and deactivated the anti-dive with a nickel.
No problems with diving even with a tire screeching stop (abs), ride is smooth and the seal isn't leaking (yet).




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