Rear caliper sticking.


Information and questions on GL1100 Goldwings (1980-1983)
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cullencombs
Posts: 4
Joined: Mon May 31, 2010 12:23 pm
Location: Sellersburg, IN
Motorcycle: 83 Goldwing, project
07 Shadow Spirit

Rear caliper sticking.

Postby cullencombs » Sat Jun 12, 2010 7:24 pm



I just put new pads on the rear and the caliper is now sticking. When I changed the pads I had to loosen the bleeder screw to allow the pistons to go back into the bores. The rear brakes work good however they are not fully releasing. Where should I start looking?



cullencombs
Posts: 4
Joined: Mon May 31, 2010 12:23 pm
Location: Sellersburg, IN
Motorcycle: 83 Goldwing, project
07 Shadow Spirit

Re: Rear caliper sticking.

Postby cullencombs » Sat Jun 12, 2010 7:46 pm

I just noticed the linked front caliper is sticking also, the leads me to believe my problems is more than likely in the master cylinder or proportioning valve?

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WingAdmin
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Posts: 17050
Joined: Fri Oct 03, 2008 4:16 pm
Location: Strongsville, OH
Motorcycle: 2000 GL1500 SE
1982 GL1100A Aspencade (sold)
1989 PC800 (wife's!)
1998 XV250 Virago (sold)
2007 Aspen Sentry Trailer

Re: Rear caliper sticking.

Postby WingAdmin » Sat Jun 12, 2010 8:39 pm

Have a look at these:

How to rebuild your front master cylinder

How to rebuild your rear master cylinder

In the rear master cylinder, you'll see a tiny hole that needs to be cleaned out - I'm using a piece of wire from a wire brush held in needlenose pliers here:

Image

The front has the same type of thing, a tiny pinhole:

Image

These are the holes through which the brake fluid returns to the master cylinder. They get plugged with old brake fluid, and the result is locked brakes.


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