GL1100 Front Master Cylinder Rebuild

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milesoffun
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GL1100 Front Master Cylinder Rebuild

#1

Post by milesoffun »

I'm having trouble with my front calipers sticking and I'm guessing it's the master cylinder spooge hole. I did a rebuild job years back and I seem to remember a good write up on a GL1100 front master cylinder rebuild on this site. But I'm not seeing it. Any help appreciated.

Thanks.
MilesOfFun
80 GL1100 - Yellow (Got wet due to Huricane Sally - gonna give it a try!)
83 GL1100I - Blue (Got wet due to Huricane Sally - but gonna give it a try!)
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Pony Ruiz
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Re: GL1100 Front Master Cylinder Rebuild

#2

Post by Pony Ruiz »

did you look at the threads at the bottom of this page?
1978GL1000 naked - kinda sadly gone. no bike at the moment.

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milesoffun
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Re: GL1100 Front Master Cylinder Rebuild

#3

Post by milesoffun »

Thanks - I was thinking there was a step by step write up for the GL1100...
MilesOfFun
80 GL1100 - Yellow (Got wet due to Huricane Sally - gonna give it a try!)
83 GL1100I - Blue (Got wet due to Huricane Sally - but gonna give it a try!)
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tomk1960
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Re: GL1100 Front Master Cylinder Rebuild

#4

Post by tomk1960 »

Here's a YouTube video showing how to rebuild one for a CB1100F: https://www.youtube.com/watch?v=6YSldW85ioI

The masters may look different, but the procedure itself is pretty much the same.
1986 VFR750F Interceptor
1983 Honda CB1100F Super Sport - Red 1123 Resto-Mod
1978 Honda GL1000
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gltriker
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Re: GL1100 Front Master Cylinder Rebuild

#5

Post by gltriker »

milesoffun wrote:I'm having trouble with my front calipers sticking and I'm guessing it's the master cylinder spooge hole. I did a rebuild job years back and I seem to remember a good write up on a GL1100 front master cylinder rebuild on this site. But I'm not seeing it. Any help appreciated.

Thanks.
look in ShopTalk ;)

here >>>>>>>>>> page/ST <<<<<<<<<<< here
Cliff (74yrs ;) )

Keep your eyes and ears open and you'll learn something new, everyday. tumb2

New users please visit our "Shop Talk" for common tips and help: <---jdvorchak
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^^^^^^^click up here^^^^^ :oldies

RE: a thorough fuel tank cleaning
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Cliff

'75 GL1000 home built trike; http://www.ngwclub.com/forum/viewtopic.php?f=30&t=39996
October,2017 BOTM :shock: https://nakedgoldwingsclub.com/forum/page/Welcome

previous rides:
1953 H-D Servi-car, naked, 1969-1978 (serial#53G1559 committed to memory!)
1980 CB900 Custom (triked) 1997-2003 .... R.I.P.
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robin1731
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Re: GL1100 Front Master Cylinder Rebuild

#6

Post by robin1731 »

Could be the return hole. Could also be broken down rubber brakes hoses. Are they new?

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1976 Goldwing Super Sport
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milesoffun
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Re: GL1100 Front Master Cylinder Rebuild

#7

Post by milesoffun »

Nope - not new. I just cleaned everything out and will give it a try later today. I could see light through the spooge hole so it looks clear. Hoses are original AFIK. Thanks for the help.
MilesOfFun
80 GL1100 - Yellow (Got wet due to Huricane Sally - gonna give it a try!)
83 GL1100I - Blue (Got wet due to Huricane Sally - but gonna give it a try!)
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milesoffun
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Re: GL1100 Front Master Cylinder Rebuild

#8

Post by milesoffun »

Looks like my issue is may be the calipers - on closer inspections, the pistons have leaked and crusted a bit and caliper walls have some crud as well.
Ordered the kits and will get them cleaned ready for install. I'll see if that fixes it - holding off on the hoses for now.
MilesOfFun
80 GL1100 - Yellow (Got wet due to Huricane Sally - gonna give it a try!)
83 GL1100I - Blue (Got wet due to Huricane Sally - but gonna give it a try!)
Fetasigma
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Re: GL1100 Front Master Cylinder Rebuild

#9

Post by Fetasigma »

Just rebuilt my whole system, didn't waste time trying to rebuild my master(it was in bad shape) just bought a new one off of ebay, combine that with stainless steel lines and one new to me used caliper and I was good to go. One of my calipers just wouldn't rebuild without leaking, so I had to source a replacement

Apex makes good inexpensive SS lines if you need them, I also got rid of the splitter and ran a double banjo off the master
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milesoffun
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Re: GL1100 Front Master Cylinder Rebuild

#10

Post by milesoffun »

Thanks for the info - good to know if my current plan doesn't work out.
MilesOfFun
80 GL1100 - Yellow (Got wet due to Huricane Sally - gonna give it a try!)
83 GL1100I - Blue (Got wet due to Huricane Sally - but gonna give it a try!)
Fetasigma
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Re: GL1100 Front Master Cylinder Rebuild

#11

Post by Fetasigma »

https://rover.ebay.com/rover/0/0/0?mpre ... 1836034628

That's the master cylinder I bought worked like a charm, and looks better than stock to boot while keeping the vintage vibe, at only 28 bucks almost as cheap as a rebuild kit for something you can just slap on
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