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Author Topic: right handlebar bushing in Master Cylinder  (Read 1256 times)

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Offline robdrobd

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right handlebar bushing in Master Cylinder
« on: July 17, 2010, 08:13:10 PM »
I went to put my master on today and there is a small rubber piece that the lever pushes up against inside. I think it is part number 13 on the following diagram. My question is this, do I need this for my brake to work? I have to pass inspection by Wednesday and don't have a replacement Master coming until next Monday.
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Offline Spanner 1

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Re: right handlebar bushing in Master Cylinder
« Reply #1 on: July 17, 2010, 08:29:23 PM »
That rubber piece is a dust-cap only, has no effect on the brake working or not.... I suppose it's to keep 'road grime' out of the piston/bore area....
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Offline vern401

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Re: right handlebar bushing in Master Cylinder
« Reply #2 on: July 17, 2010, 08:34:36 PM »
I agree...... I would take it in for inspection and not say anything about it missing..  ;)
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Offline robdrobd

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Re: right handlebar bushing in Master Cylinder
« Reply #3 on: July 17, 2010, 08:39:39 PM »
On a related note. Does an MC get inspected for leaks, or does it just have to work the caliper enough to stop the bike?
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Offline mycb750k6

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Re: right handlebar bushing in Master Cylinder
« Reply #4 on: July 18, 2010, 10:31:13 AM »
What bike? Honda discontinued that part fairly early on.
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Offline 754

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Re: right handlebar bushing in Master Cylinder
« Reply #5 on: July 18, 2010, 12:38:24 PM »
#13 is the anti rattle rubber..
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Offline robdrobd

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Re: right handlebar bushing in Master Cylinder
« Reply #6 on: July 18, 2010, 02:45:53 PM »
Sorry, 1975 cb550f
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Offline Johnie

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Re: right handlebar bushing in Master Cylinder
« Reply #7 on: July 18, 2010, 07:22:42 PM »
Quote from: 754 on July 18, 2010, 12:38:24 PM
#13 is the anti rattle rubber..

Correct. The handle sits against this rubber. Sort of handy. You can cut any hose to fit in there.
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Offline vern401

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Re: right handlebar bushing in Master Cylinder
« Reply #8 on: July 18, 2010, 07:27:35 PM »
The leak question may depend on the state.
I would not want it leaking myself.. My life may depend on it some time.
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Offline 754

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Re: right handlebar bushing in Master Cylinder
« Reply #9 on: July 18, 2010, 09:14:30 PM »
That rattle rubber went over everybodys head... ;)

 Ocassionaly, when these bike sit and you get them going, the MC may weep or leak a bit and heal up in a few days... no guarantees though..
« Last Edit: July 18, 2010, 10:17:30 PM by 754 »
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Offline SohRon

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Re: right handlebar bushing in Master Cylinder
« Reply #10 on: July 18, 2010, 09:39:16 PM »
Quote from: Johnie on July 18, 2010, 07:22:42 PM
Quote from: 754 on July 18, 2010, 12:38:24 PM
#13 is the anti rattle rubber..

Correct. The handle sits against this rubber. Sort of handy. You can cut any hose to fit in there.

It's a rubber stop for the brake lever; without it the lever flops around like wearing boxer shorts to a sack race. They want more than three dollars for it at BikeBandit... Just go down to the auto parts store and find a rubber vacuum hose that fits and jam it up in there. Normally, it's held in place by a little metal plate that bolts in underneath the MC (#14 in your schematic) via the lever pivot bolt. If you have that, great! if you don't, try to find a hose that's a little large, or maybe CA glue??
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