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Author Topic: Are complete rear master cylinder assys. still available?  (Read 1037 times)
Pappy!
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Posts: 5710


Central Florida - Eustis


« on: May 10, 2015, 11:06:28 AM »

1998 Standard.
Bled the rear brakes using a mityvac and apparently stuck the piston pretty hard in the master cylinder.
There was water laying between the rear boot and the piston which probably helped the sticking. Removed the cylinder, pulled the rear boot and the top nipple as well as the output line. Tried compressed air up to 120psi to free it and it will not budge. Have not tried pressing out the assembly.
Looked in Partzilla and says obsolete. Anywhere else you know of that carries them?
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Paladin528
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Posts: 722


Greater Toronto Area Ontario Canada


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« Reply #1 on: May 10, 2015, 12:04:04 PM »

Try dealercostparts.com Price for a front looks to be around $250
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sandy
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Posts: 5388


Mesa, AZ.


« Reply #2 on: May 10, 2015, 01:42:52 PM »

Put some ATF in it and let it soak. Also: I have a used one laying around if all else fails.
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Pappy!
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Posts: 5710


Central Florida - Eustis


« Reply #3 on: May 10, 2015, 02:11:09 PM »

I kept messing with it. Drove it out. Came out with no damage. Cleaned the piston edges and re-installed. Sealed up just fine. Works as designed.
Need a boot for it as the other one is toast, hence the water entry.
Sandy, thanks for the offer...much appreciated!
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O-B-1
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Show ain't over until the Fat Lady sings

Vancouver, WA


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« Reply #4 on: September 12, 2015, 08:19:53 AM »

I know this topic is old, but I was wondering why Honda wouldn't have a brake cylinder from another, newer model that would be identical. I feel the "parts listings" will become obsolete before the parts are actually obsolete. I believe Honda seems to reutilize components from one model to the next, standardization in manufacturing makes it cheaper than engineering a whole new bike down to every part. Saves on tooling in the factory, immensely.

Here's a poke.... That's why HARLEY-DAVIDSONS all look alike and are tinker toys, haven't changed their tooling in years!  2funny
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David W. Mitchell
1999 Honda Valkyrie GL1500C
Natarie
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Posts: 4


« Reply #5 on: October 05, 2015, 08:58:42 AM »

Hi Natarie here

Don't mean to change the subject however I cannot get the rear caliper to bleed out. Have gone an extensive fluid but still have a soft brake pedal. The spring returns pedal to full height however when pumping the pedal it never reaches it's full potential of firmness to be depressed (very low more than half), for bleeding step to take place.

Hope someone can help
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Ricky-D
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Posts: 5031


South Carolina midlands


« Reply #6 on: October 07, 2015, 07:41:54 AM »

Hi Natarie here

Don't mean to change the subject however I cannot get the rear caliper to bleed out. Have gone an extensive fluid but still have a soft brake pedal. The spring returns pedal to full height however when pumping the pedal it never reaches it's full potential of firmness to be depressed (very low more than half), for bleeding step to take place.

Hope someone can help

Are you saying you think there is air in the system?

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2000_Valkyrie_Interstate
Steel cowboy
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Moving ahead so life won’t pass me by.

Spring Hill, Fl.


« Reply #7 on: October 07, 2015, 08:15:23 AM »

I had a spongy pedal on a previous bike it turned out to be the master cylinder. It was not holding almost like it had an internal leak with the piston. I changed out the master cylinder and all was good.
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2001 black interstate
2003 Jupiter Orange wing
Paladin528
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Greater Toronto Area Ontario Canada


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« Reply #8 on: October 07, 2015, 09:07:01 AM »

There are kits available to rebuild the master cylinder. 
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