front master cylinder eyeglass leaking


Information and questions on GL1200 Goldwings (1984-1987)
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angeltattoo
Posts: 2
Joined: Wed Mar 31, 2010 8:10 am
Location: rockford,tn.
Motorcycle: 1985 goldwing gl1200 aspencade

front master cylinder eyeglass leaking

Postby angeltattoo » Wed Mar 31, 2010 9:02 am



i have a 1985 gl1200 aspenade the front brake master cylinder eyeglass is seeping brake fluid,i bought a used master cylinder off ebay hoping this would cure my problem,and its leaking too. i looked on all kinds of rebuild kits and theres nothing about the eyeglass,or how it's fixed in there,does anyone know how i can fix this problem.



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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: front master cylinder eyeglass leaking

Postby WingAdmin » Wed Mar 31, 2010 11:09 am

It seems to be a fairly common failure for 1200 master cylinders. I've heard of people knocking it out, then replacing it with a piece of plastic bonded in with JB-Weld. A more creative solution is one that I saw where the owner replaced the sight glass with a coin.

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MSGT-R
Posts: 177
Joined: Thu May 07, 2009 10:19 am
Location: Utah
Motorcycle: 13 F6B
81 GL1100 (gone)

Re: front master cylinder eyeglass leaking

Postby MSGT-R » Wed Mar 31, 2010 1:56 pm

If the glass is not cracked, you can very carefully seal the edges with clear epoxy or black RTV. There was a guy on another board (V4) that was selling little glass replacements, and that's how they were installed. Plastic may be "attacked" by the brake fluid if it's not the right kind.

A jewler or watch repairman may have little glass lenses that will be the right size if you take the master in with you (make sure it's clean and dry..).
Don't spook the road sheep.

angeltattoo
Posts: 2
Joined: Wed Mar 31, 2010 8:10 am
Location: rockford,tn.
Motorcycle: 1985 goldwing gl1200 aspencade

Re: front master cylinder eyeglass leaking

Postby angeltattoo » Wed Mar 31, 2010 11:52 pm

thanks you guys for the repair ideas, i didn't have any glass or watch crystals to try, but i did have a 1985 dime and a file it took a few minutes and a beer or 2, but i think the dime thing is going to work, i'll find out monday if its sunny,thanks again.

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MSGT-R
Posts: 177
Joined: Thu May 07, 2009 10:19 am
Location: Utah
Motorcycle: 13 F6B
81 GL1100 (gone)

Re: front master cylinder eyeglass leaking

Postby MSGT-R » Thu Apr 01, 2010 8:44 am

A silver dime, or just an ordinary dime.. let's do it with a little class. :lol:
Don't spook the road sheep.

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WingAdmin
Site Admin
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: front master cylinder eyeglass leaking

Postby WingAdmin » Thu Apr 01, 2010 1:37 pm

Soak the dime in some vinegar for a few hours to get it nice and shiny before you stick it in there. :) You know, chrome.

Ghostrider52005
Posts: 124
Joined: Sun Dec 20, 2009 7:19 pm
Location: Olive Hill Kentucky
Motorcycle: 1985 GL 1200 LTD, 1984 GL1200 Interstate, VS 700 Suzuki Intruder.

Re: front master cylinder eyeglass leaking

Postby Ghostrider52005 » Sat May 01, 2010 9:18 am

whole glass blew out of my friends 84 interstate. He just sealed the whole hole up with JB weld and checks his fluid by taking the cap off. :D




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