shift shaft seal replacement


Information and questions on GL1100 Goldwings (1980-1983)
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80GL
Posts: 2
Joined: Sun Feb 28, 2016 10:34 am
Location: Methuen, MA. 01844
Motorcycle: 1980 GL1100
1979 CB750L 10th Anv. LTD Edition
1983 CB750SC Nighthawk

shift shaft seal replacement

Postby 80GL » Sun Feb 28, 2016 11:17 am



Hello, New member, first post.
I have owned my 80 GL1100 for 18 years now, and have been through almost everything on this bike over the years.
It has 106,000 miles and I have had a weepy shift shaft seal for a years, but other than a little mess it hasn't been a major problem.
I did a belt replacement last week, and inspected this area, and the oil blow-by is getting heavy.
I purchased a new seal, yes, still available on Bike-Bandit, and it looks like a smaller version of a fork seal.
After the case guard and exhaust are removed, access to the seal look good. Can this be done externally?
Pick out the old seal, and tap a new seal in.
My question is, has anyone performed this operation before?
Is it as easy as it appears?



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WingAdmin
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Posts: 17047
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: shift shaft seal replacement

Postby WingAdmin » Sun Feb 28, 2016 4:13 pm

80GL wrote:Hello, New member, first post.
I have owned my 80 GL1100 for 18 years now, and have been through almost everything on this bike over the years.
It has 106,000 miles and I have had a weepy shift shaft seal for a years, but other than a little mess it hasn't been a major problem.
I did a belt replacement last week, and inspected this area, and the oil blow-by is getting heavy.
I purchased a new seal, yes, still available on Bike-Bandit, and it looks like a smaller version of a fork seal.
After the case guard and exhaust are removed, access to the seal look good. Can this be done externally?
Pick out the old seal, and tap a new seal in.
My question is, has anyone performed this operation before?
Is it as easy as it appears?


The shift shaft seal is very easy to change. First remove the shifter from the shifter shaft. Then pry out the old seal with a thin screwdriver - this is easier to do than it sounds. If you can't get it, you can try sinking a couple drywall screws into the front of it, one on either side of the shaft, and pull it out that way. Make sure the shaft itself isn't damaged or burred - the new seal is quite delicate.

Before installing the new seal (it should be an OEM seal - aftermarkets don't seem to fit as well), wrap some masking tape around the splined end on the shaft, to protect the new seal. Also coat the inside of the new seal with oil, to help it slide into place.

Push the new seal on and into place as well as you can with your fingers. Then use a deep 3/4" socket with a rubber mallet to gently push it the rest of the way into place.

Remove the masking tape, replace the shifter, and you're done! Shouldn't take more than 15-20 minutes.

80GL
Posts: 2
Joined: Sun Feb 28, 2016 10:34 am
Location: Methuen, MA. 01844
Motorcycle: 1980 GL1100
1979 CB750L 10th Anv. LTD Edition
1983 CB750SC Nighthawk

Re: shift shaft seal replacement

Postby 80GL » Sun Feb 28, 2016 7:37 pm

Thanks. It didn't look that difficult.
Your procedure is about the same as I would have attacked it.
Just a little reassurance helps.


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