Author Topic: Rear brake soggy after changing caliper  (Read 81 times)

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Offline xsel777

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Rear brake soggy after changing caliper
« on: June 16, 2018, 10:48:28 PM »
I imported a used rear caliper from ebay, since it was R3000 cheaper than a new original.
I took the scoot into to a local bike  workshop to have it fitted since I did not want the hassle of bleeding and cleaning up brake fluid.
However, the scoot came back with a soggy brake. Rear.
The job did sort out the major chatter that was happening before as the old caliper was badly worn.
I decided to bleed myself, and used a syringe to push the fluid up onto the reservoir. 400ml later and hardly any better.
Since the caliper is the only different thing, must I assume that this used caliper has bad seals or something, although there is no evidence of fluid in the caliper escaping.?
The brakes were sharp before the caliper change.
I am one man alone, so bleeding the rear brakes is difficult as I can't pump and release the nipple (I can't stretch that far), which is why I used the reverse syringe idea.
Any suggestions?

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Online blujeenz

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Re: Rear brake soggy after changing caliper
« Reply #1 on: June 18, 2018, 11:07:46 AM »
I imported a used rear caliper from ebay, since it was R3000 cheaper than a new original.
I took the scoot into to a local bike  workshop to have it fitted since I did not want the hassle of bleeding and cleaning up brake fluid.
However, the scoot came back with a soggy brake. Rear.
The job did sort out the major chatter that was happening before as the old caliper was badly worn.
I decided to bleed myself, and used a syringe to push the fluid up onto the reservoir. 400ml later and hardly any better.
Since the caliper is the only different thing, must I assume that this used caliper has bad seals or something, although there is no evidence of fluid in the caliper escaping.?
The brakes were sharp before the caliper change.
I am one man alone, so bleeding the rear brakes is difficult as I can't pump and release the nipple (I can't stretch that far), which is why I used the reverse syringe idea.
Any suggestions?

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Thats not exactly the way to do it, you just pushed the air back up the system.
You need one of those check valve brake bleed kits that midas sells.






Offline sharkcontrol

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Re: Rear brake soggy after changing caliper
« Reply #2 on: June 18, 2018, 04:26:59 PM »
Yeah it is called a one-man brake bleeding kit.Bought mine years ago-essential if you work on your ace.
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Offline xsel777

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Re: Rear brake soggy after changing caliper
« Reply #3 on: June 19, 2018, 04:29:03 PM »
I have ordered a vacuum bleeder kit. There is no urgency now, as it has just started getting better every day.

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2010 Kymco Xciting 500Ri (Not ABS) - Dark Blue