Changing valve cover gasket


Information and questions on GL1200 Goldwings (1984-1987)
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borntolandhard
Posts: 2
Joined: Sun Sep 15, 2019 5:11 am
Location: New Jersey
Motorcycle: 1986 GL1200A Aspencade

Changing valve cover gasket

Post by borntolandhard » Fri Nov 29, 2019 8:03 am



My first post! I have only had my GL1200A for two months. The right side valve cover gasket just started to leak. Does the oil have to be drained before taking the valve cover off? This may be a stupid question, but I am used to doing this job on parallel twins where the valve cover is on the top of the engine :D

I will be replacing the right and left gaskets while I'm at it and the 8 rubber mounting washers. Thanks!



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DenverWinger
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Location: Denver, CO
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1980 GL1100 STD Vetter (2005-)
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1972 CL350 (1980-1988) sold
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Re: Changing valve cover gasket

Post by DenverWinger » Fri Nov 29, 2019 8:21 am

No need to drain oil. It all drains to the sump in the bottom of the engine, much lower than the cylinder heads. You will likely have some still sitting in the valve cover when you remove it though. Be prepared for a few drips, but no flood. :D

There's a good chance the gaskets are still OK. They depend on the force exerted by the four rubber mounting washers (each side) to seal, since the mounting washers are on shoulder bolts they only tighten until the shoulder bottoms out and "that's it". So if the washers are degraded the valve cover won't be held quite tightly.
♫ 99 Little Bugs in the Code, ♪
♪ 99 Bugs in the Code. ♫ :(
♫ Take one down, Patch it around, ♪
♫ 127 Little Bugs in the Code. ♫ ♪ :shock:

~Mark

borntolandhard
Posts: 2
Joined: Sun Sep 15, 2019 5:11 am
Location: New Jersey
Motorcycle: 1986 GL1200A Aspencade

Re: Changing valve cover gasket

Post by borntolandhard » Fri Nov 29, 2019 8:35 am

Thanks! I replace all rubber parts whenever I open something up. This bike was cheap enough. I can waste $14 on a gasket!

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Bike...and Dennis
Posts: 10
Joined: Sat Oct 06, 2018 2:33 pm
Location: Glendale, Arizona
Motorcycle: 1987 GL1200I

Re: Changing valve cover gasket

Post by Bike...and Dennis » Sat Nov 30, 2019 12:05 am

I think it's rarely the gasket leaking on a GL12. On the left side it's usually the shift shaft seal and on the right it's the rear cam seal.



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