Stuck caliper piston


Technical information and Q&A applicable to all years and models of Goldwings
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19GoldWing83
Posts: 17
Joined: Wed Sep 07, 2011 5:32 pm
Location: Cumberland, RI
Motorcycle: 1983 GL1100I Interstate

Stuck caliper piston

Postby 19GoldWing83 » Sat May 25, 2013 7:30 am



I have an '83 Interstate and I need to change the seals in the calipers, but one of the pistons is stuck in the caliper. Any ideas to get it out would be really helpful at this time. Thanks.



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Fulcrum
Posts: 181
Joined: Thu Mar 07, 2013 1:54 pm
Location: The Falls, Texas
Motorcycle: 1982 GL1100

Re: Stuck caliper piston

Postby Fulcrum » Sat May 25, 2013 9:45 am

I would suggest using compressed air. You may need to put a thin block of wook in the caliper however as one piston may shoot out and leave the other one stuck with no air pressure pushing it.

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WingAdmin
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Motorcycle: 2000 GL1500 SE
1982 GL1100A Aspencade (sold)
1989 PC800 (wife's!)
1998 XV250 Virago (sold)
2007 Aspen Sentry Trailer

Re: Stuck caliper piston

Postby WingAdmin » Sat May 25, 2013 7:33 pm

If it's still hooked up to your brake system, put a flat piece of something strong in (you can even use an old brake pad), and start pumping. I have a piece of welding stock that I use:

Image

Once one piston contacts the piece, keep pumping and the other one will come out as well.

If it's no longer hooked up to the brake system, you can also hook a grease gun onto the bleed nipple, and use grease pumped into push the pistons out. Just make sure you clean all the grease out of the caliper after you've got the pistons out (you'll have to remove the bleed nipple to get it all).

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blueridgerunner
Posts: 27
Joined: Wed Jul 04, 2012 5:58 am
Location: Stuart, Virginia
Motorcycle: 1987 GL1200 Interstate

Re: Stuck caliper piston

Postby blueridgerunner » Fri May 31, 2013 3:18 pm

If it's really stuck (mine wouldn't budge w/air) you can screw a zerk fitting into the hole where the bleed screw goes. A grease gun puts a great deal of pressure like 10X that of compressed air. Pros: The piston oozes out instead of shooting out and it WILL come out. Cons: A mess to clean the grease out afterwards.




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