1500 fork rebuild


Information and questions on GL1500 Goldwings (1988-2000)
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zackzuro
Posts: 19
Joined: Mon Apr 18, 2016 8:50 pm
Location: Palos Park, Illinois
Motorcycle: 1985 GL1200A
1999 GL1500SE
2012 Aspen Sentry Trailer

1500 fork rebuild

Post by zackzuro »



So I'm rebuilding the forks in my newly acquired 1999 1500SE.
When disassembling everything I like to think I'm very careful about not mixing parts from one location to another,
whether it is engine components, carbs, suspension, or whatever.
I have the official Honda service manual and I have a question that some more experienced member probably knows already
There is an oil lock piece on only ONE of the front forks.
The way I laid everything out. I have it located on the LEFT fork (drivers side for automotive reference)
The Honda manual shows a parts breakdown of the front fork and states it is a left side view showing the oil lock, so OK
In the verbage included in the manual for re-assembly, they state that the oil lock goes on the RIGHT side?
Just a typo?
I really don't think I was careless in lay all my parts out, just want to be certain

Thanks again for all who have responded and helped in the past


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thebruce
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Motorcycle: 1991 GL1500SE Anniversary Edition #54

Re: 1500 fork rebuild

Post by thebruce »

I believe you are referring to the anti-dive built in to the forks.

If I am correct, if installed on the left fork it will activate when you use the foot brake. If installed on the right it will activate with the hand brake.

The front left and back brakes are linked. Kind of funny if you aren't used to it, but I have no complaints now that I am used to it.

I can't recall which side my anti-dive is on. I rebuilt my forks a couple months ago and used lighter oil than before so it isn't as apparent as it was last year, and that is a while ago now.
It doesn't matter what you ride, as long as you have your knees to the breeze.
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MikeB
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Re: 1500 fork rebuild

Post by MikeB »

If item #4, #6, and #9 in the diagram are what you are talking about, the parts breakdown shows that there are two of each for the SE fork set.
https://www.ronayers.com/oemparts/a/hon ... front-fork
The Interstate may have only one.
MikeB
1998 - GL1500 w/184,500 miles ~ 2017 - GL1800 w/13000 miles
USAF Avionics Communications Tech - 1968 - 1986 / Flight Engineer C-130E - C-141B - 1986 - 1992. Retired
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zackzuro
Posts: 19
Joined: Mon Apr 18, 2016 8:50 pm
Location: Palos Park, Illinois
Motorcycle: 1985 GL1200A
1999 GL1500SE
2012 Aspen Sentry Trailer

Re: 1500 fork rebuild

Post by zackzuro »

My 1999 SE has anti-dive units on both forks.
The item I'm referring to is # 20 oil lock piece.
It is only on ONE of the fork pistons
I am trying to verify that it goes into the LEFT fork.
The written word in the official Honda manual says right fork, the picture shows left fork
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dingdong
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Motorcycle: 1976 gl1000
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Re: 1500 fork rebuild

Post by dingdong »

On my 93 the oil lock piece is on the right fork.
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MikeB
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Re: 1500 fork rebuild

Post by MikeB »

zackzuro wrote: Tue Jun 01, 2021 6:56 am My 1999 SE has anti-dive units on both forks.
The item I'm referring to is # 20 oil lock piece.
It is only on ONE of the fork pistons
I am trying to verify that it goes into the LEFT fork.
The written word in the official Honda manual says right fork, the picture shows left fork
Now that we are sure what it is you are looking at in the parts breakdown, it looks like it goes on the right fork tube on the SE and Aspencade and on the left fork tube on the Interstate.
MikeB
1998 - GL1500 w/184,500 miles ~ 2017 - GL1800 w/13000 miles
USAF Avionics Communications Tech - 1968 - 1986 / Flight Engineer C-130E - C-141B - 1986 - 1992. Retired
Industrial Maintenance Tech - 1992 - 2014
Retired in Tacoma, WA
zackzuro
Posts: 19
Joined: Mon Apr 18, 2016 8:50 pm
Location: Palos Park, Illinois
Motorcycle: 1985 GL1200A
1999 GL1500SE
2012 Aspen Sentry Trailer

Re: 1500 fork rebuild

Post by zackzuro »

I don't want to beat this topic to death, but I really would like to understand what that piece is?
And why it is only in one fork leg
I examined the inside of the fork sliders and they appear to be identical.
All the other parts, piston, fork tube etc. are the same part # and technically interchangeable
If the PO happened to put the oil lock piece in the wrong fork leg during some service, I can't figure out what the issue would be.
If I'm correct and didn't mix up my parts when I set everything out, then it may have been previously reassembled into the wrong leg. (If there actually is a wrong leg)
I put several thousand miles on it up to this point and never noticed anything unusual.
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MikeB
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Re: 1500 fork rebuild

Post by MikeB »

I wish I can help you with the whys and wherefores but I cant. I only know what is in the parts breakdown and I believe that the parts should go back into the tubes as indicated in the parts breakdown.

If they were not where they were supposed to be, than it just may have been the previous owner or maintainer inadvertently made the swap.

It doesn't appear that it has affected your ride any and since the parts are pretty much identical in both tubes, I guess it can go where ever you want to put it.

I have not had the same issues as you are having but that may be because I do one fork tube at a time. I too do not want to mix and match parts and if I do one at a time, there is no mixing and matching.
MikeB
1998 - GL1500 w/184,500 miles ~ 2017 - GL1800 w/13000 miles
USAF Avionics Communications Tech - 1968 - 1986 / Flight Engineer C-130E - C-141B - 1986 - 1992. Retired
Industrial Maintenance Tech - 1992 - 2014
Retired in Tacoma, WA
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4given
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Re: 1500 fork rebuild

Post by 4given »

The oil lock is there to keep the leg of the fork from being damaged by “locking” the oil flow near the end of the stroke so that it won’t bottom out on the inside of the tube. I’m not sure if all front forks have an oil lock in both legs. You can get a better explanation by doing a search on line. Hope this helps


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