Rear master cylinder help GL1100 - Steve Saunders Goldwing Forums

LinkBack Thread Tools
post #1 of 7 (permalink) Old 02-20-2010, 07:08 PM Thread Starter
Junior Member
Join Date: Aug 2009
Location: Edmonton, Alberta, Canada
Posts: 11
Post imported post

Hi,finally startedrestoring a 1980 GL1100 that sat for years under a tarp; imho first place to start is the brakes.Have newrebuild kits for the calipers and master cylinders, however the rear master cylinder piston assembly, primary cup & spring will not budge. Have used compressed air and am soaking it with Kroil for now;there was muchrust on the piston & circlip. Am thinking it might just be better to ordernew master cylinders but would like an opinion or two first please.
Izbit is offline  
Sponsored Links
post #2 of 7 (permalink) Old 02-20-2010, 07:17 PM
Bike...and Dennis's Avatar
Join Date: Feb 2009
Location: Glendale, Arizona, USA
Model: 1987 GL1200 Interstate 290,000 miles
Posts: 21,727
Post imported post

Hi Iz,

This one may break loose but if the walls are rusty...well you know. Those can be had used, from e-bay or your local junkyard. I usually opt for local so I can see the part before I commit. But since you already have the rebuild kit...

Why ain't we ridin'?
Bike...and Dennis is offline  
post #3 of 7 (permalink) Old 02-20-2010, 08:28 PM
Hatchetman's Avatar
Join Date: Jun 2007
Location: Bancroft Ontario Canada eh.
Year: 1991 1500 SE & 79 1000 GL.
Model: '79 GL1000 & '91 GL1500
Posts: 3,074
Post imported post

If you can plumb in a grease fitting, you can use the hydraulic force of a grease gun to push it free!

If ya cant fix it with a hammer, it's prolly lectrical
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Hatchetman is offline  
Sponsored Links
post #4 of 7 (permalink) Old 02-20-2010, 08:38 PM
DaveO430's Avatar
Join Date: Nov 2007
Location: Amity, Arkansas, USA
Model: 2010 GL1800
Posts: 24,193
Post imported post

What hatchetman wrote, a 1/8 NPT grease fitting will screw into the banjo bolt hole good enough to hold the pressure of a grease gun. Don't screw it in tight, just snug and it won't damage the threads.

With no God over the state, the state then becomes not the defender of liberty but the definer of liberty.

NRA endowment life member
Wild Rhino Arkansas chapter
2010 1800 pearl yellow

If I disagree with you it's simply because you're wrong.
DaveO430 is online now  
post #5 of 7 (permalink) Old 02-20-2010, 08:41 PM
Senior Member
peterbilt's Avatar
Join Date: Feb 2009
Location: bettendorf, Iowa, USA
Posts: 5,106
Post imported post

i had to soak my rear master cylinder in pb blaster and diesel fuel for 4 days to get it to move if you could find one used that was in good shape carefull cuz the housing is aluminum if the cylinder had siezed to the housing it could ruin the housing

i am the current president of the non punctuators and bad spelling motorcycle group

peterbilt is offline  
post #6 of 7 (permalink) Old 03-27-2010, 11:34 AM Thread Starter
Junior Member
Join Date: Aug 2009
Location: Edmonton, Alberta, Canada
Posts: 11
Post imported post

Anyone know if the rear master cylinder is common to other Honda models?
Izbit is offline  
post #7 of 7 (permalink) Old 03-27-2010, 12:28 PM
goldwing randy's Avatar
Join Date: Aug 2009
Location: Jerome, Idaho, USA
Posts: 374
Post imported post

Go to oem honda motorcycle parts on the internet and look up part number of your rear caliper. On that same site, then punch in your part number and all the different bikes that came with that rear caliper will come up.

Hallelujah " Praise to Yahweh "
goldwing randy is offline  
Closed Thread

  Steve Saunders Goldwing Forums > Forums > Goldwing Technical Forum

Quick Reply

Register Now

In order to be able to post messages on the Steve Saunders Goldwing Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page

Similar Threads
Thread Thread Starter Forum Replies Last Post
Rear master cylinder, GL1100 britman Goldwing Technical Forum 1 08-24-2012 03:04 PM
GL1100 Rear Brake Master Cylinder WingDog Goldwing Technical Forum 26 02-28-2012 01:25 AM
Gl1100 interstate. Rear master cylinder captaincon For Sale/Wanted Forum 0 02-09-2012 11:02 AM
GL1100 rear master cylinder rebuild exavid Goldwing Technical Forum 6 06-24-2007 07:03 PM
Rear Master Cylinder Bleed---GL1100 Lew Goldwing Technical Forum 8 12-26-2006 09:53 PM

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome