XL1200C brake problems - Harley Davidson Forums: Harley Davidson Motorcycle Forum
 
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post #1 of 8 (permalink) Old 07-29-2013, 04:26 PM Thread Starter
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XL1200C brake problems

Hello,

I just got my 2008 Sportster XL1200C about a month ago. It is my first Harley. And BTW thanks for letting me join the forum.

I noticed that the rear brake sounded sort of metallic like they were metal on metal. I can also hear the brakes when I am rolling it with the motor killed, and NO brake applied.

I went and bought new pads, but before I replaced them, I looked at and the existing pads have a TON of meat left on them.

In the past few days I have noticed that my rear brake will lock with not that much pressure. It never locked before with the same amount of pressure. I plan on making the repair myself, if I can figure out if it is the caliper or the master cylinder.

Any suggestions?

Thanks
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post #2 of 8 (permalink) Old 07-29-2013, 05:20 PM
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About the noise, they may be sintered pads.
As for the drag...
Try cleaning the pistons in on the caliper. Also, may want to flush and bleed the line.

Leave the gun. Take the cannoli.



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post #3 of 8 (permalink) Old 07-29-2013, 08:00 PM Thread Starter
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Quote:
Originally Posted by misinlink View Post
About the noise, they may be sintered pads.
As for the drag...
Try cleaning the pistons in on the caliper. Also, may want to flush and bleed the line.

I forgot to mention that I did bleed the brakes.

If I clean the caliper pistons do I need a rebuild kit for that? I am just trying to get me ducks in a row before I start.

Thanks for the input
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post #4 of 8 (permalink) Old 07-30-2013, 08:38 PM Thread Starter
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OK I jumped in and scraped my knuckles on her today. I took the piston out of the caliper and it was corroded lightly where it was exposed. I buffed it lightly with 0000 steel wool and then I put in new pads and reassembled everything. I bled all of that old dark amber brake fluid out and put in the new clear DOT4.

It works like a champ now. You really have to get on it to lock them up now. The pedal feels like it is an inch higher. I did not use a rebuild kit like I know I should have, but I don't have any leaks.
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post #5 of 8 (permalink) Old 07-30-2013, 10:20 PM
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The Harley brake system is designed for DOT 5. You should change out the DOT 4 and put DOT 5 in there.

Even says it on top of the master cylinder. For future reference, get a factory shop manual.
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post #6 of 8 (permalink) Old 07-30-2013, 11:18 PM Thread Starter
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Quote:
Originally Posted by bobf View Post
The Harley brake system is designed for DOT 5. You should change out the DOT 4 and put DOT 5 in there.

Even says it on top of the master cylinder. For future reference, get a factory shop manual.
My rear master cylinder as well as my front are marked DOT4.
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post #7 of 8 (permalink) Old 07-31-2013, 07:08 AM
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Damn, been DOT 5 for years, I wonder when they changed to DOT 4? I'll have to check service bulletins, MY BAD!
















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post #8 of 8 (permalink) Old 07-31-2013, 07:11 AM
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Brembo brakes use DOT4, Kelsey Hayes brakes use DOT5.

Disclaimer : Don't believe anything I say unless you are absolutely sure that I know what I'm talking about .
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