1975 Gl1000 Goldwing Differential leak?


Information and questions on GL1000 Goldwings (1975-1979)
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Jim Hudson
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Motorcycle: 1975 Gl 1000 Goldwing

1975 Gl1000 Goldwing Differential leak?

Postby Jim Hudson » Mon Jun 07, 2010 9:16 pm



I have had a dealer try 3 times to no avail...What can I do to repair differential leak?
leak shows after 40 -60 mile ride it drips from right side housing.
They told me they replaced two seals and a gasket "If that don't do it we can't help" (this was Staurday it leaked after 40 miles of riding) This began late last year and since they have tried to repair it it actually has gotten worse.
Does anyone have a suggestion as to what to look for?



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WingAdmin
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Re: 1975 Gl1000 Goldwing Differential leak?

Postby WingAdmin » Tue Jun 08, 2010 12:10 pm

Can you tell where on the differential that it is leaking from?

Jim Hudson
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Re: 1975 Gl1000 Goldwing Differential leak?

Postby Jim Hudson » Tue Jun 08, 2010 12:53 pm

I can only see the drip at the bottom of the right side...This is after I drove about 30 miles from the dealer to my home (It showed no sign of a leak sitting in my garage from Saturday afternoon until Monday when late in the afternoon I went for a local ride of about ten miles...After which I parked at my home and looked to see if it was leaking and IT WAS) it does spray on the wheel and tire on the right side only and after sitting over night there was a small puddle on the right side of the wheel only BUT it was sitting on the side kick stand only.It is not from the drain plug and there is nothing on the outside of the housing except at the very bottom where the drip is hanging.
Any advice is welcome Thanks Jim H

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WingAdmin
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Re: 1975 Gl1000 Goldwing Differential leak?

Postby WingAdmin » Tue Jun 08, 2010 1:12 pm

Make sure it's not coming out of the vent:

Image

If the rear drive is filled with a little too much gear oil (i.e. it was filled while on the side stand), when it warms up, it will blow oil out of this vent - and a little bit of oil makes a big mess. If you're having a leak at the bottom, but the area around this vent is clean, then it's not the vent.

Jim Hudson
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Joined: Mon Jun 07, 2010 9:08 pm
Location: Loveland, Ohio
Motorcycle: 1975 Gl 1000 Goldwing

Re: 1975 Gl1000 Goldwing Differential leak?

Postby Jim Hudson » Tue Jun 08, 2010 1:38 pm

I know this sounds weird .... Is it possible there is no vent on my differential?
I just went out to varify and I cannot see any vent, I did find the cast lettering as your photo shows but no vent.
S/N GL1 1016026 1975 GL 1000 Goldwing
To the best of my knowledge I am the second owner and the differentaial has never been an issue.
Are other year differentials interchangeable with the 1975?
(Gear ratio , fit, hook up to drive shaft, etc.?)
Thanks for at least trying to help looking forward to your reply. Jim H

Jim Hudson
Posts: 7
Joined: Mon Jun 07, 2010 9:08 pm
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Motorcycle: 1975 Gl 1000 Goldwing

Re: 1975 Gl1000 Goldwing Differential leak?

Postby Jim Hudson » Tue Jun 08, 2010 4:11 pm

I have tried to send a photo from amanual that I have and it did not work...The photo also does not show the vent that you discussed nor does the drawing of the parts show a vent.
Just trying to get facts straight!

I also checked the gear oil level ...If anything it is a bit low and I took it for a short ride...No new flinging of oil but it did drip a drop or two just after I stopped the bike at home...It is still sitting for now. Thanks again Jim H

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WingAdmin
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Re: 1975 Gl1000 Goldwing Differential leak?

Postby WingAdmin » Tue Jun 08, 2010 9:33 pm

ooops...thought I was reading in the GL1100 forum, not the GL1000 forum. I need to pay more attention when replying! You're right, there is no vent on the top of the GL1000 final drive. In which case...you're down to seals again. I haven't touched final drive seals before, is there perhaps someone else here that has?

Jim Hudson
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Re: 1975 Gl1000 Goldwing Differential leak?

Postby Jim Hudson » Wed Jun 09, 2010 6:54 am

Your attempt to help me is appreciated, Thanks, Jim H

Should anyone have any suggestions I would be open to try whatever.

Does anyone know if GL 1000 differential is replaceable by other model differentials...
Do they bolt up, are gear ratios the same, etc.?

Jim Hudson
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Joined: Mon Jun 07, 2010 9:08 pm
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Re: 1975 Gl1000 Goldwing Differential leak?

Postby Jim Hudson » Fri Jun 11, 2010 7:54 pm

For those who have tried to help...After I took the differetial apart I believe that I found the problem...A daeler could not find...I found an obvious problem ...how about a cmplteely shot ball bearing (even has a ball missing) which I determined after seeing very many very small metal paticles in the oil.

So I have purchased a used differential with low miles and hope this cures my problem. Many Thanks to those of you who have tried to help and the best of riding seasons to all. Jim H

Jim Hudson
Posts: 7
Joined: Mon Jun 07, 2010 9:08 pm
Location: Loveland, Ohio
Motorcycle: 1975 Gl 1000 Goldwing

Re: 1975 Gl1000 Goldwing Differential leak?

Postby Jim Hudson » Sun Jul 04, 2010 12:38 pm

After about 400 miles the "Used" differential that I purchased for less than the bearings and other parts would have cost me I have a "Leak Free" differential.
In fairness to the dealer I guess they were looking as deep as they coukld without tearing down the whole differential....Too bad, they probably could have made more repairing it than I spent repairing it myself.

Again I wish to thank those who offered their help with my problem. Jim H




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