Transmission Cover Leaking


Information and questions on GL1800 Goldwings (2001-2017)
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Mbd
Posts: 2
Joined: Tue Apr 02, 2019 10:19 pm
Location: Birmingham, AL
Motorcycle: 2006 Goldwing 1800

Transmission Cover Leaking

Post by Mbd »



Hey guys I’m new to the Goldwings. I purchased a 2006 1800 that had been sitting for about 5 years. I’ve drained all the fluids, cleaned the gas tank, replaced the fuel pump, tires, etc. After changing the oil and filter, I noticed I had an oil leak, but it’s coming from the transmission cover. I ordered a new gasket and took it apart and replaced it, but it’s still leaking. I took it back apart and added some gasket maker to it as well, but it’s still leaking. Any ideas or tips on how to stop the leak. I’ve got another gasket ordered. It’s leaking on the right side at the bottom below the drain plug close to the oil filter in that bottom corner.
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GoldWingrGreg
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Re: Transmission Cover Leaking

Post by GoldWingrGreg »

With the cover off, did you clean the insides well and look for any cracks ???

Actually, is that a crack ??? If so, to fix the engine case needs to be replaced.
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keithg64
Posts: 713
Joined: Thu May 21, 2009 9:47 pm
Location: Geneseo, IL
Motorcycle: 2007 Gl1800HPNA Blue
2000 GL1500 Pearl Coranado Blue -sold

Re: Transmission Cover Leaking

Post by keithg64 »

Here's a comparison of my 07 in that same area.




It's not what you buy, it's what you build.

Mbd
Posts: 2
Joined: Tue Apr 02, 2019 10:19 pm
Location: Birmingham, AL
Motorcycle: 2006 Goldwing 1800

Re: Transmission Cover Leaking

Post by Mbd »

Thanks for the replies. No it’s not a crack, I doubled checked everything today, and it’s not coming from that seem area where I have circled. It’s actually coming from the right side of the cover a little further up from what looks like a breather hole. I’ll try and get a picture of the exact spot.

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GoldWingrGreg
Posts: 751
Joined: Tue Aug 24, 2010 7:18 am
Location: Zephyrhills, Florida
Motorcycle: 89 GL1500
03 GL1800
04 GL1800(abs)
05 GL1800(abs)
07 GL1800(abs)
Contact:

Re: Transmission Cover Leaking

Post by GoldWingrGreg »

The pee hole on the upper left side of the transmission cover is not only there for a possible oil leak but also for a possible clutch slave cylinder leak.

Does the fluid feel like engine oil or thin like brake fluid ???
Is the brake fluid in your clutch m/c low ???

If brake fluid, then when you remove the slave cylinder, you should be able to see that it's causing the leak.
If oil, then inspect the seal that the clutch push rod goes through. Most likely the seal area will be wet.



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