How to rebuild your front master cylinder


Step-by-step tutorials on how to maintain and fix your GL1100
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KCwing
Posts: 36
Joined: Fri Aug 18, 2017 8:39 pm
Location: Greeneville, TN, USA
Motorcycle: 1978 Honda GL1000

Re: How to rebuild your front master cylinder

Post by KCwing » Wed Sep 13, 2017 9:42 am



Will this DIY article work for a 1978 GL1000?

Thanks!



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Phunnybone
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Location: Rock Hill SC
Motorcycle: 1985 GL1200 LTD (undergoing re-assembly)
1985 GL1200 LTD (#2) (parting out)
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Re: How to rebuild your front master cylinder

Post by Phunnybone » Thu Sep 21, 2017 5:24 pm

My 1200 LTD (#3) master cylinder innards didn't quite look like this, and the original clip DID NOT come out willingly (but the replacement went in easily. Solved the front brake locking up problem.

frodeem
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Location: Chicago, IL
Motorcycle: 1982 Goldwing Aspencade

Re: How to rebuild your front master cylinder

Post by frodeem » Sun Jan 28, 2018 6:46 pm

I am trying to build the front master cylinder. So far I have managed to do everything except the rubber boot from step 21. I followed the instructions to insert the boot over the piston and made sure the top of the boot sits in the channel around the top of the piston. I cant seem to understand the directions for the bottom of the boot. I have attached some pictures to show what I mean. Hoping someone can help me. Appreciate your help.
















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WingAdmin
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Re: How to rebuild your front master cylinder

Post by WingAdmin » Mon Jan 29, 2018 8:52 am

I'm not entirely sure from the angle of your pictures, but it looks like the boot might not be seated in the groove in the master cylinder. I found that it was easiest to push the base of the boot down around the piston and get it seated into the groove in the master cylinder, then work the top of the boot around the end of the piston and seated in its groove.

frodeem
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Location: Chicago, IL
Motorcycle: 1982 Goldwing Aspencade

Re: How to rebuild your front master cylinder

Post by frodeem » Mon Jan 29, 2018 10:42 am

WingAdmin wrote:
Mon Jan 29, 2018 8:52 am
I'm not entirely sure from the angle of your pictures, but it looks like the boot might not be seated in the groove in the master cylinder. I found that it was easiest to push the base of the boot down around the piston and get it seated into the groove in the master cylinder, then work the top of the boot around the end of the piston and seated in its groove.
Is the groove above the circlip?

frodeem
Posts: 34
Joined: Fri Oct 06, 2017 6:13 pm
Location: Chicago, IL
Motorcycle: 1982 Goldwing Aspencade

Re: How to rebuild your front master cylinder

Post by frodeem » Mon Jan 29, 2018 5:00 pm

WingAdmin wrote:
Mon Jan 29, 2018 8:52 am
I'm not entirely sure from the angle of your pictures, but it looks like the boot might not be seated in the groove in the master cylinder. I found that it was easiest to push the base of the boot down around the piston and get it seated into the groove in the master cylinder, then work the top of the boot around the end of the piston and seated in its groove.
Thanks WingAdmin, I was able to do it after I removed the top of the boot. Appreciate the help.



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